INFORMATION CARRYING DEVICE FOR A FUEL DISPENSING NOZZLE

Abstract: The information carrying device comprises a carrying body adapted to be fitted onto the filler gun (1) and to extend from approximately a first junction between the rear end of the gun nozzle (2) and the forward end of the gun head (3) to approximately a second junction between the rear end of the gun head and the forward and of the handle (5), the carrying body (7) having an upper surface (8) defining an elongated display surface for messages, and comprising a first member (10) and a second member (11) and devices (16, 17, 18, 19) for releasably interconnecting the first and second members, the first and second members being shaped to generally conform, when so interconnected, to enclose the sides, bottom, and upper portions of the gun head, and a device (27) connected to the upper surface of the carrying body for supporting a replaceable message card (9) placed on the display surface.

Description: Information carrying device for a fuel dispensing nozzle Technical Field The present invention relates to a display apparatus removably attachable to the filler gun of, e.g., a fuel pu p or other fluid pump. The filler gun includes, in series connection, a nozzle having a forward discharge end and a rear end, a gun head having both a forward end portion which connects with the rear end of the gun nozzle and a rearward handle portion whose forward end connects to the rear end of the gun head. The display apparatus comprises a carrying body adapted to be fitted onto the filler gun. The carrying body has an upper surface defining an elongated display surface for messages. The display apparatus is also useful on a filler gun having the gun head covered by a protective boot of rubber or plastic material. Further, the display apparatus is particularly, although not exclusively, useful for a carrying body extending from approximately a first junction between the rear end of the gun nozzle and the forward end of the gun head to approximately a second junction between the rear end of the gun head and a forward end of the handle. Background Art The prior art discloses a carrying body of the above mentioned type with the carrying body being shaped like a boot and having a rear end which is fully open for entry through the filler gun nozzle and the gun head, and a front end with a substantially smaller opening through which the filler gun nozzle extends when the carrying body is fitted onto the filler gun. A carrying body of such prior art type has an upper surface which effectively covers only the upper region of the gun head in order to define the elongated display surface for messages. Such carrying bodies are suitable for use in countries having only a very limited number of filler gun types, such as, for example, in Norway, Denmark, Germany and Sweden. However, in other areas of the World, the number of differently designed filler guns may be substantially higher. In the United States of America, for example, the number of differently shaped filler guns is in excess of ten. Such a large number of different types of filler guns reguires a large number of differently formed carrying bodies. In practice, it is difficult to obtain the same display surface area and configuration for each carrying body type. Also, some filler guns are so designed that it is difficult to design an easily fitted and removable carrying body. It s highly desirable to have a carrying body which is easily attachable to the filler gun even by an inexperienced person, and also to have a carrying body which is easily removable from the filler gun when maintenance is to be carried out on the filler gun, e.g. repair of the valve within the filler gun head. Most filler guns are known to have the gun heaα covered by a protective boot of rubber or plastic material, both for protecting the gun head against damage and to prevent a bare gun head from making scratches on a car's paint work. Removing such protective boot from a filler gun in order to mount a carrying body according to the present invention is both time consuming, resulting m a waste of such boot material, and causes the gun head to be less protected. The present invention therefore also includes the feature of being able to be fitted onto a filler gun without having to remove such a protective boot. According to a first embodiment of the present invention, the carrying body comprises a first member and a second member and means for releasably interconnecting the first and second members, the first and second members being shaped to generally conform, when so interconnected, to enclose the side, bottom, and upper portions of the gun head, and means removably connected to a top surface of the carrying body for supporting a replaceable message card placed on the display surface of the first member. According to another embodiment of the present display apparatus, the carrying body comprises a lower member and an upper member releasably engageable with the lower member, the lower member having two side panels and means for interconnecting the side panels. The lower member, when the two side panels are brought to die against the gun head, substantially fits around a lower part of the gun head. The side panels have at their top region a first interlocking means, the upper-member being formed as a cap-like member to fit over an upper part of the gun head and having a second interlocking means for releasably engaging the first interlocking means on the lower member, and a top member releasably engageable with the upper member. The top member has means for releasable engagement with the upper member, space being provided between an upper surface of the upper member and a portion of the top member for locating a replaceable message card when the top member and the upper member engage. When the filler gun head is of the type already covered by a protective boot of rubber or plastic material, the carrying body can be fitted on the filler gun without having to remove the protective boot. In a further embodiment of the display apparatus, the carrying body comprises a lower member and an upper member releasably engageable with the lower member, and further a top member which is releasably engageable with the upper member. The top member has a curved configuration along its length. According to a further embodiment of the display apparatus, the carrying body may comprise a lower member, an upper member releasably engageable with the lower member, the lower member having two side panels and means for interconnecting the side panels. The lower member, when the two side panels are brought to lie against the gun head, substantially surrounds a lower pact of the gun heac. The side panels have at their top regions a first interlocking means, the upper member is formed as a cap-like means to fit over an upper part of the gun head, and having a second interlocking means for releasably engaging the first interlocking means onto the lower member. The upper member may have an upper (top) surface for locating a replaceable message card, the upper surface having along at least a portion of its peripheral edge an upwardly extending rim, and means protruding upwardly from the upper (top) surface for releasably engaging holes in the message card. This latter embodiment is also useful on a filler gun which has its gun head covered by a protective boot, because there is no need to remove the protective boot before fitting the carrying body to the filler gun. According to the invention, it is also possible to provide a carrying body comprising a lower member, and an upper member releasably engageable with the lower member, the upper member having a top surface with a curved configuration along its length. Although, in a preferred embodiment of the present invention the two -side panels are brought towards each other to lie against opposite sides of the gun head, it is possible, with a choice of suitable material for the lower member, to have the two side panels integrally joined at a front region thereof. Such a variant may be useful in order to provide typical male/female elements for matching and joining front region edges of the two side pane-is . In another preferred embodiment of the present invention, the two side panels are suitably formed as two separate panels which are provided with interconnecting means, such as snap-lock means. Contrary to the prior art carrying body, the carrying body of the present invention is made of a substantially hard plastic material, e.g., polyamide. The pivotally connected member or top member is also suitably made of a substantially hard plastic material, e.g. polycarbonate. If the carrying body is provided with a pivotally connected top member, such member may have a lid with a transparent face portion for viewing a message therethrough, or a frame with an open space between opposite sides of the frame. In the case of a frame, the frame can be made of a transparent or non-transparent material, for example, polycarbonate, and the color thereof can, for example, be the same color as that of the carrying body, or a color which contrasts with the color of the carrying body. Also, such frame can have a portion carrying information related to the type of fuel supplied from the gun. Further, m order to more easily detach the frame from the upper member, the upper member may at a peripheral region adjacent to a corresponding portion of the frame have a transverse dimension which is less than the transverse dimension of the frame. The existence in a given market area of a significant number of differently sized and shaped filler guns creates the problem of being able to affix message cards having a uniform size and shape to all, or substantially all, of such filler guns. The present invention obviates this problem. This is accomplished by affixing to such filler guns shell-like members which are so sized and configured as to reasonably closely conform to the corresponding outer side and bottom surfaces of the filler gun. The shell-like members support thereon a top lid or the like which may be integrally formed with, or separately fabricated and attached to, said members which surround said side and bottom surfaces. The outer configuration of such top lid is formed in size and outer contour so as to attach to the above- mentioned shell-like members. The top surface is further provided with a message card receiving cavity or the like which is so sized and configured as to removably support all message cards of standard size and configuration. These, and further, embodiments of the display apparatus according to the present invention will appear from the description below with reference to the attached drawing figures, as well as the attached patent claims. The present invention is now to be described with reference to the attached drawing figures illustrating preferred, but non-limitative embodiments, of the present invention. Brief Description of the Drawings Figures 1 and 2 illustrate the fitting of a lower member of the carrying body of the present invention onto a filler gun head; Figure 3 illustrates the fitting of an upper member of the carrying body onto the filler gun head through engagement with the lower member; Figure 4 further illustrates the mounting of the upper member onto the filler gun with pivotable engagement of a top member with the upper member; Figure 5 shows a carrying body with a top member fully installed on the filler gun; Figure 6 is a side view of the upper member of the carrying body, according to the present invention; Figure 7 is a bottom view of the upper member of the carrying body, according to the present invention; Figure 8, 9, 10, 11 and 12 are cross-sectional views VIII, IX, X, XI and XII of Figure 7; Figure 13 is a top plan view of a top member of the display apparatus, according to the invention; Figure 14 is a cross-sectional view XIV-XIV of Figure 13; Figure 15 is a cross-section through the display apparatus with the top member of Figure 13 and installed on a filler gun; Figure 16 is a top plan view of a modified top member of the display apparatus formed, as an open frame; Figure 17 is a cross-sectional view XVII-XVII of Figure 16; Figure 18 is a cross-section of the display apparatus, according to the present invention fitted onto a filler gun and having a top member according to Figure 16; Figure 19 shows a top plan view of a modification of the top member of Figure 16; Figure 20 is a cross-sectional view XX-XX of Figure 19; Figure 21 illustrates in a perspective view the display apparatus installed on a fuel gun with a top member according to Figure 16; Figure 22 shows in perspective view a display apparatus according to the present invention installed on a filler gun and with a top member according to Figure 19; Figure 23 shows a further embodiment of an upper member of the carrying body of the display apparatus according to the present invention, with an integral frame structure at the top surface of the upper member; Figure 24 is a cross-sectional view XXIV-XXIV of Figure 23; Figures 25, 26 and 27 are side, top and perspective views, respectively, of a further modified upper member the carrying body; Figure 28 is a cross-sectional view XXVIII-XXVIII of Figure 27; Figure 29 is an enlarged view XXIX of Figure 28; Figure 30 is a side view of a filler gun with a two part carrying body fitted thereon and with a pivotally connected top member fitted onto the carrying body; Figure 31 is a side view of a filler gun with a two-part carrying body fitted thereon, and with a top member engageable with an upper part of the carrying body; Figure 32 is a side view of a filler gun with a two-part carrying body fitted thereon in accordance with the embodiments shown in Figures 23, 24 and 25-29; Figures 33-35 illustrate fitting of the lower member of the carrying body onto the filler gun when the lower member at its front end region has its side panels integrally joined; Figure 36 illustrates a further modification of the two- piece carrying body, and the top member; Figures 37 and 38 are side and top views of a modified version of the upper member, according to the invention. Figure 39 is a slightly modified version of the frame according to Figure 19. Figure 40 is a cross-sectional view at XXXX-XXλX of Figure 38 of the display apparatus according to the present invention, fitted onto a filler gun and with an upper member according to Figures 37 and 38. Figures 41a and 41b illustrate separate side panels of a further modified version of the lower member oϊ the display apparatus according to the invention. Figure 42 illustrates installing the side panel s of Figures 41a and 41b on a filler gun. Figure 43 illustrates a further modified version of the lower member fully installed on a filler gun. Figure 44 is an exterior side view of the side panel of Figure 41b. Figure 45 is a front view of the further modified version of the lower member. Figure 46 further illustrates mounting of the modified upper member onto the filler gun and with pivotable engagement of a modified top member with the upper member. Figures 47, 48 and 49 illustrate alternative means for attaching the upper member to the lower member. Figures 50-53 illustrate alternative means for attaching a top member to an upper member of the present display apparatus . Figures 54 and 55 illustrate in perspective view and cross-section, respectively, further alternative means for attaching an upper member to a lower member. Figure 56 is a perspective view of an embodiment of the invention in which the upper and lower members form two structural halves joined together. Figure 57 is a longitudinal cross-section through a frame-shaped top member and an upper member with modified hinge connection means. Figures 58 and 59 are top and side views, respectively, of an upper member having spring means. Figure 60a is a cross-sectional view at LX-LX in Figure 8. Figures 60b shows a perspective view of the rear snap engagement arrangement between the top member and the upper member of the apparatus. Figure 61 illustrates means on an upper member for releasably engaging a rear part of a top member. Figure 62 is a modification of the embodiment shown in Figure 61. Figures 63, 64, 65 and 66 show in rear, front, top, and side views, respectively, a modification of the lower member shown in Figure 33. Figure 67 illustrates a modification of the embodiment as shown in Figures 19, 20, and 22. Figure 68 is cross-sectional view LXVIII-LXVIII of Figure 67. Figure 69 illustrates an improvement of the top member shown in Figures 19, 20 and 22. Figure 70 illustrates a spring means located at a hinge arrangement between the tap member and the upper member. Figure 71 illustrates a typical embodiment of the spring means of Figure 70. Figure 72 illustrates in perspective view the spring means of Figure 70 when installed. Figures 73 and 74 illustrate rear perspective views of assembling of a modified top member to a modified upper member . Figures 75 and 76 illustrate a front perspective view of assembling of a modified top member to a modified upper member. Figure 77 is a cross-sectional view LXXVII-LXXVII of Figure 76, and Figures 78 and 79 are front perspective views of display apparatus adapted to be used on filler guns having different configurations but with each providing for the display of respective advertising messages of a uniform size and configuration . Best Mode for Carrying Out the Invention Figures 1 and 2 show a filler gun 1 of, e.g., a fuel pump or other fluid-dispensing pump. The filler gun includes a gun nozzle 2 for discharging fuel or other fluid at its front end, and a gun head 3 having internally located valve means (not shown) . The valve outlet means communicates with the nozzle 2, and a valve inlet means (not shown) communicates with a fuel or fluid supply means connected to a hose 4, the supply means extending through a candle of the gun. The handle 5 has lever means 6, operatively connected to the valve means . The gun head 3 may be of an unprotected type, or may be covered by a protective boot of rubber or plastic material as indicated by reference number 3' . As shown in Figures 4 and 5, the filler gun is provided with a display apparatus, generally denoted by reference number 70. Such a display apparatus is intended for supporting on its upper surface 8 a message card 9 for displaying a graphic message readily viewable by a filler gun user . As clearly shown in Figures 4 and 5, the carrying body 7 for the graphic message is adapted to fit over the filler gun to extend from approximately the junction "a" of the gun nozzle 2 with the gun head 3 to approximately the junction "b" of the gun head 3 with a forward end of the handle 5. The display surface 8 for the graphic message, when the carrying body 7 is attached to the filler gun, extends longitudinally along the filler gun from approximately the junction "a" of the gun head 3 with the nozzle 2 to approximately the junction "b" of the gun head with a forward end of the handle of the gun. As clearly seen from Figures 1-5 the carrying body 7 comprises a lower member 10 and an upper member 11 releasably engageable with the lower member 10. The lower member 10 has two side panels 12, 13, a bottom element 14, and means 15, such as film hinges or other transition means, integrally connecting side panels 12, 13 with the bottom element 14. As shown in Figure 2, the lower member 10 with its side panels 12, 13 and bottom element 14 are brought to lie against the gun head 3, substantially fitting around a lower part of the gun head. At the top region of the side panels there are first interlocking means 16, 17 and 18, 19 on the respective panels 12 and 13. The first interlocking means 16-19 are suitably formed as male elements in the form of snap hooks. As seen from Figures 3 and 4, the upper member 11 is formed as cap-like means to fit over an upper part of the gun head 3. The upper member 11 has second interlocking means 20, 21 and 22, 23 for releasably engaging the first interlocking means 16, 17 and 18, 19, respectively, on the lower member. The second interlocking means are formed as female elements having means, e.g. in the form of a ledge or set-off 20', 21', 22', 23' as indicated more closely in Figures 7, 8 and 10. Figure 1 shows that the panels 12, 13, bottom element 14, connecting means 15, and the first interlocking means 16-19 are formed as an integrally made structure, e.g. through an injection molding process. As seen from Figure 6, the upper member 11 has an upper peripheral portion 11' with a bead 11" extending along the upper peripheral portion 11' for releasably engaging a peripheral skirt portion of a top member located on the upper member 11, as will be explained further with reference to Figures 13-15. At a forward end of the upper member, there is orovided a first hinge means 24 in the form of a protruding member having a transverse hole 2 ' . As illustrated in Figures 1 and 2, side panels 12, 13 may be provided with a plurality of integrally made studs 25 which compensate for tolerances in the space between the panels 12, 13 and the gun head 3 as well as being able to penetrate partly into any protective boot provided on the gun head. Thus, when fitted around the gun head 3, the lower member 10 may obtain improved contact with the gun head 3. Similarly, as indicated in Figures 8-11, the upper member 11 may have similar, or technically equivalent, space- compensating studs, generally denoted by reference number 26. The studs preferably should be so dimensioned that they easily yield and/or penetrate into the soft protective boot for covering the gun head, if so provided. Figure 12 discloses that the top face 11' ' ' of the upper member 11 has a curved configuration along its length. In a first embodiment, the top member shown in Figure 4 and also n Figure 13, is labelled with reference number 27 and is formed as a lid with a transparent face portion 27 ' for viewing a message on the message card 9. The top member 27 has means in the form of thickened portions 28 on a peripheral skirt portion 29 depending from the transparent face portion 21' which are designed to engage bead 11' on upper member 11. Space is provided between an upper surface of the upper member 11 and a portion of the top member 27 m order that the replaceable message card 9 can be located in such space when the top member 27 and the upper member 11 engage, as illustrated in Figure 15. Figure 15 shows how the lower member 10 with its side panels 12, 13 and the first interlocking means 16, 18 are capable of snap locking to the upper member 11. Top member 27 is suitably provided with a second hinge means 30 engageable with the first hinge means 24 on the upper member 11 for pivotable attachment of the top member 27 to the upper member 11. The second hinge means has a protrusion integral with a pm 31, having a slit 32 and a thickened end 33. Figures 16-20 will now be explained with regard to the differences from what is shown and described in connection with Figures 13-15. Instead of the top member 27 being formed as a lid, the embodiment of Figure 16 shows a top member 34 formed as a frame with open space 35 between opposite sides of the frame. The frame has a first element 3 ' which overlies a marginal edge portion of a top surface of the upper member 11 as clearly illustrated in Figure 18, and a second element 34" integral with first element 34' for releasably engaging the upper peripheral portion of the upper member 11. As similarly shown in Figure 13, the second element may be provided with second portions 36 to provide releasable engagement with the upper peripheral portion of the upper member. Similarly to what is shown in Figures 13 and 14, the top member 34 according to Figure 16 is provided with a second hinge means 30. The top member 34 of Figure 16 can be made of a transparent material. Alternatively, it can be made of a non-transparent material, e.g. of a color that is the same as that of the upper member 11, or a color forming a suitable contrast with the color of member 11. Figure 19 is a slight modification of the embodiment of Figure 16 n that a rear end of the top member has a widened portion, as shown m the longitudinal direction of the top member. The widened portion of the frame is labelled with reference number 37 and is in reality a widened portion of the first element 34 shown and described in connection with Figures 16 and 17. The widened portion 37 of the frame is suitable for carrying information related to type of fuel supplied from the gun, e.g. "PREMIUM." Figure 21 is a perspective view of the embodiment according to Figures 16-18, and Figure 22 is a perspective view of the embodiment according to Figures 19 and 20. As indicated in Figures 19, 20, it is suitable to use the widened portion 37 on the top member for carrying information related to fuel type. Although such information could be applied to portion 37 by a printing process, or by using recesses filled with contrasting color compounds, one way of providing such information is by forming openings 133 as shown in Figure 67 and in cross-section LXVIII-LXVIII of Figure 67 as shown in Figure 68, said openings extending through said portion 37 and corresponding to the textual information to be shown, such as, e.g. "UNLEADED PLUS". If the top member, formed as a frame, is of a color such as green or red, a white non-printed part of a message card to be located underneath portion 37 will be seen in the openings and form contrast with the colored material surrounding the openings, thus making the fuel type information easy to read. The openings are created during the molding process of the top member . When using a top member as shown in Figures 19, 20, 67 and 69, a message on a message card 134 may be viewed through a display opening 135' m top member 13 as shown in Figure 69. For that purpose, the fuel type display area 135" on its rear face may be provided with engagement studs 136, 137, e.g. of arrowhead cross section, adapted to engage with corresponding holes 139, 140 in the card 134. At the rear of the front region of the top member 135, i.e. adjacent hinge means 142 connecting top member 135 and upper member 143, at least one further engagement stud 138 may be provided for engaging a corresponding hole 141 in the card 134. Thereby, card 134 is held in place on top member 135. Further, the top face of the upper member 143 may be provided with holes 144, 145, 146 for receiving studs 136, 137, 138. Figure 13, when considered with reference to Figures 6 and 7, discloses the second hinge means as being in the form of a male member 31 which is capable of releasable snap engagement with female member 24 of the hinge connection between the upper member 11 and its top member, e.g. 27 as shown in Figure 13, element 34 as shown in Figure 16, or the modified version of the top member 34 as shown in Figure 19. A modified version of the upper member 11 is shown in Figures 23 and 24, the modified upper member being denoted by reference number 38. The upper member 38 has, along its peripheral outline, a frame member 39 formed with open space 40 between opposite sides of the frame 39. The frame has a first element 39' located over a marginal top edge portion of the upper surface of the upper member 38, and a second element 39" integral with the first element 39' . The second element is preferably integral with the upper surface of the upper member, e.g. by welding or through the use of suitable adhesive. To properly locate the frame 39 onto the upper member 38, e.g. during welding or other operation for joining the two male/female members, means denoted by reference numeral 41 may be provided on the frame 39 and the upper member 38, respectively. To provide insertion of a message card 9 in the space between the upper surface of the upper member 38 and the first element 39' of frame 39, a slot 42 may be provided as shown by dotted lines on Figure 23 m the second element 39" of the frame 39. Alternatively, the first element 39' of the frame 39 may have a section 43 removed to permit easy insertion and removal of message card 9. An additional modification of the upper member 11 is shown and described with reference to Figures 25-29. In this embodiment, the upper member is labelled with reference numeral 44. It has a top surface 44' and, along at least a portion of the peripheral edge of, the top surface, an upwardly extending rim 45. The rim is preferably only a few millimeters high, maybe even less. Means in the foim of studs 46 protrude upwardly from the surface 44', the protruding means 46 having a substantially arrow-shaped configuration, a straight upright portion thereof having a height substantially equal to the thickness "d" of the message card 9. When the message card 9 is positioned inside the inner circumference of the rim 45 as indicated on Figure 27, holes 47 provided in the message card 9 are brought into snap-like engagement with the arrow-shaped studs 46. Thus, the message card 9 is held suitably in place on the upper member 44. To provide for drainage of any rain water when the gun is located on the pump between filling operations, the nm 45 may be provided with an opening 45' as indicated in Figure 27. The opening 45' also provides for easier removal of the message card 9 when it is to be replaced by a new message card. To further secure the message card 9 onto the top surface 44' of the upper member 44, a region of adhesive 48 may be applied to the upper surface 44' of the upper member 44 as indicated in Figure 26. Alternatively, the adhesive may be available on the rear side of the message card 9 and be of a type which firmly adheres to the rear side of the message card 9 but not so firmly that it sticks to the upper surface 44' of the upper member 44. Figure 30 illustrates how the display apparatus according to the present invention, and in accordance with the embodiments shown and described in connection with Figures 1-22, appears in a side view when mounted on a filler gun. Figure 31 illustrates that the top member 27; 34 (and 37) could be replaced by a top member 49 having no pivotable connection with the upper member 11. In such a variant, the hinge means 24, 30 are not present. Figure 32 illustrates a side view of the embodiments according to Figures 23, 24 and 2-29. In connection with the description of Figures 1 and 2, it should be noted that the side panels 12, 13 at the front region have edges which mate when the panels are brought to lie against the gun head. Until such moment, the edges are spaced apart. However, in a modified embodiment of the lower member 10, denoted by reference numeral 10a in Figures 33 and 35, it is proposed, to let the two side panels 12, 13 be integrally joined at a front region thereof. Suitably, the front region of the two side panels is above, as indicated by reference number 10', and below as indicated by reference number 10" a front opening 10' ' ' in the lower member, through which the filler gun nozzle 2 extends when the lower member 10a is brought into engagement with the gun head 3 on the filler gun 1, as illustrated on Figure 33. Figures 63, 64, 65 and 66 illustrate in rear, front, top, and side views, respectively, a modification of a lower member as shown in Figure 33. The lower member has side panels 125 and 126, a front panel 127, and a bottom panel 128. The front panel 127 is at its top upwardly open as indicated by reference numeral 127' and with an approximate outline configuration of an inverted letter omega (Ω) . The side panel 125 has at its top region upwardly extending male engagement means 129, 130 for engaging female engagement means in an upper member (not shown) . Further, the side panel 126 has at its top region upwardly extending male engagement means 131, 132 for engaging female engagement means in an upper member (not shown) . In order to avoid an upper member being positioned with its front surface backwards onto the lower member and entering into snap engagement in such position, it is advantageous to let the foremost upwardly extending means 129, 131 extend further up than the rearmost upwardly extending means 130, 132, e.g. by a distance h. In the upper member, the corresponding female engagement means must have corresponding depths, such that if extending means 131 is inserted into female means designed to receive extending means 130, it will immediately be seen that there is something wrong in that there will be a space between a top region of the side panels and a bottom region of an upper member. Further, both upwardly extending means 131 and 132 have an abutment edge member 131'; 132' and a hook- like engagement member 131"; 132". Similar members are provided on extending means 129 and 130. For extending means 132, the distance between members 132' and 132" is h2. For extending means 131, the distance between means 131' and 131" is hi, such that suitably h2 - hi is h. The abutment members 131' and 132' are designed to abut a corresponding lower edge (not shown) on a female engagement means on the upper member. Therefore, if the upper member is attempted to be fitted onto the lower member front backwards, extending means 131 will have its abutment edge member 131' engage a female engagement means on the upper member designed for member 130 before hook member 131" is able to snap engage. Figures 12, 14, 17, and 20 show that both the upper surface of the upper member as well as the top member have a curved configuration along its length. However, it is readily conceivable that the top member, as indicated by reference number 50 in the side view of Figure 36, could have two substantially planar sections 50' and 50" mutually forming an obtuse angle. Similarly, the upper member, here labelled as 51, can have a top surface of similar configuration seen along its length, i.e. two substantially planar, upper surfaces 51' and 51" forming an obtuse angle. Contrary to prior art carrying bodies for a display apparatus which is removably attachable to the filler gun of a fuel pump, the carrying body, in this particular invention a two- piece carrying body, can be made of a substantially hard plastic material. As an example, a suitable material would be e.g. polyamide. In a prototype, polyamide 66 has proved to be a suitable plastic material. The top member 27; 34 (37) ; 49; 50 is suitably made of a substantially hard plastic material which may be transparent or non-transparent. A type of material such as polycarbonate has proved to be suitable in connection with a prototype made of the present apparatus. Suitably, the polycarbonate could be e.g. of the make LEXAN®, MAKROLON®, GRILIAMID® or other suitable make. In the embodiment of the lower member 10a as described in connection with Figures 33-35, when the lower member is to be fitted onto the gun head of the filler gun 1, the rear portions of the side panels 12, 13 may be pushed slightly away from each other to facilitate pushing and entering of the lower member a onto the filler gun. Although the lower member is made of a substantially hard plastic material, the wall thickness of the lower member is of such dimension that manipulation of the side panels is possible. Compared with Figures 6 and 7, the upper member 11 of Figures 37 and 38 have been modified in that a mid-region ll' 1 ' of the peripheral portion 11' thereof has its cross- dimension made smaller, inter alia, by removing sections of the peripheral bead 11' ' . At a rear end, the top member 52, e.g. a frame as shown in Figure 39, has an engagement member 53, e.g. a bead, for engaging said bead 11' ' at the rear end of the upper member 11. As shown in Figure 40, the frame 52 has a horizontal member 52' and a vertical member 52' ' . Vertical member 52' ' is at midsection 11' ' ' of upper member 11 spaced from the outer circumference of the upper member, thus enabling squeezing opposite midportions of the frame towards each other and thereby moving bead 53 in a rearward direction to disengage bead 11' ' . At a forward end of the upper member, there is provided a modified first hinge means 54 having a C-shaped cross- section and having a recess 5 ' for receiving in pivotable engagement a modified second hinge means 55 located at a front end of top member 52. Figure 57 shows in cross-section an upper member 110 with top member 11, e.g. formed as a frame structure. At a front region of said upper member 110, a first hinge means 110' is provided which is snap engageable with a second hinge means 111' at a front region of the top member 111. To accommodate the different thermal expansion and contraction of said top and upper members, which could otherwise result in rear ends of said members 103, 104 becoming disengaged, the first female type hinge means 110' is at a distance d from the front of the second hinge means 111', when it bottoms in the first hinge means 110', to a typical narrow entry portion 110' of the first hinge means 110, thereby providing for some radial play d of the second hinge means in the first hinge means in a longitudinal direction of the upper member . The lower member 10b (see Figure 46) of the display apparatus, in its further modified version, comprises two s de panels 56 and 57 as illustrated, for example, in Figures 41a and 41b, with such side panels interconnected as shown in Figures 42-46. Side panel 6 has suitably a number of first interconnecting means 58, 59 and 60. The number of such means could possibly be fewer, e.g. two or be higher, for example, four. Side panel 57 has corresponding second interconnecting means 61, 62 and 63. The first interconnecting means 8-60 are suitably male snap-lock means. The second interconnecting means 61-63 are suitably female snap-lock means. Next to the respective interconnecting means may be provided holes 58', 59', 60', 61', 62", 63' for inserting conventional self-locking straps in case any of the snap-lock means become defective. At the rear region of the lower member, additional holes 64 and 65 may be provided for engagement with conventional self-locking straps, if so required. Rear, transversely protruding members 66 and 67 are intended for engaging a rear edge region of the gun head. The first interlocking members for engaging the upper member are labelled 16', 17', 18' and 19' in Figure 41. In the previous disclosure, it has been shown to be advantageous to attach the upper member of the display apparatus to the lower member thereof by means of snap engagement, male engagement means extending up from the lower member to engage female engagement means in the upper member. Figures 47-49 illustrate alternative means for providing attachment of the upper member with the lower member. In Figure 47, there is provided a lower member 69 having at the top of its side panels uprights 70, 71 72, 73 extending into pockets 70', 71', 72' and 73', respectively in an upper member 68. Screws 70", 71", 72", 73" extending through an upper side edge region of the upper member 68 and into said upright secure said uprights to 70-73 to the upper member 68. In Figure 48, upper member 74 is attached to a lower member 75. The lower member has at the top of its side panels uprights 76, 77, 78, 79. In the top face of upper member 74, there are holes, such as holes 76' and 68' to be aligned with said uprights. Screws 76", 77", 78" and 79" extend through said holes and engage said uprights 76-79. In the further alternative of Figure 49, there are no uprights; instead, a lower member 80 is provided with lugs 81, 82, 83, 84 for screw-engagement with long screws 81', 82', 83', 84' extending through holes 76', 77', 78', 79". The upper member 74 may be identical to that shown in Figure 48. A further variant of snap-engagement between the upper member and the lower member could be as shown in Figures 54 and 55, Figure 55 showing a cross section of the assembly in Figure 54 at approximately the position line LV-LV. An upper member 99, with a general configuration similar to that shown for other embodiments of the upper member has, along at least part of the lower circumference thereof, second snap- engagement means 100, e.g. male-type snap-engagement means. A lower member 101 of general configuration as shown and described earlier, however, with no engagement uprights, has at its upper, substantially U-shaped rim or edge a first snap-engagement means 102, suitably in the form of female type snap-engagement means. By this embodiment, it is possible to obtain an excellent connection between the upper member and lower member. For the sake of simplicity, a top member has not been indicated in Figure 54. In those cases where a display message is to be kept for a rather long time on the apparatus, or where there is a need for more tamper-proof attachment of the top member to the upper member of the apparatus, the embodiments according to Figures 50-53 may prove useful. In Figure 50, there is shown a top member 85 in the form of a transparent lid. Member 85 has, in its preferred embodiment, four depending male snap engagement means 86, 87, 88, 89 intended to engage female snap engagement means 91, 92, 93, 94, respectively, located at an upper circumferential region on an upper member 90. In order to release the top member 85 from engagement with the upper member 90, a took, such as e.g. a screwdriver may be inserted into a hole below said means 91-94, e.g. as shown in form of holes 91' and 92' Figure 51 is a cross-section through the top member 85 and upper member 90 at position LI-LI in Figure 50, and with a lower member 95 attached to the upper member in a manner as described e.g. in connection with Figure 34. Figure 52 shows the same attachment means as shown and described above, apart from the top member 85' not being a transparent lid, but rather a typical frame structure such as generally described e.g. in connection with figures 16-22, the frame structure having an opening denoted by reference number 96. The embodiment of Figure 53 is in principle the same as that shown and described above for Figure 50, however with the exception that a forward end region of the upper member 85" is provided with a first hinge means intended to engage a second hinge means 98 at a forward end of the upper member 90' . Because the movement of the top member 85", due to an established hinge connection with the upper member 90', describes an arc rather than a rectilinear movement used for the embodiments of Figures 50 and 52, upper forward region of the female snap engagement means 91-94 must be wider, e.g. as indicated at 91" and 92" to accommodate for such arcuate movement of the male snap engagement means 86-89. Although Figure 53 shows a typical lid structure for the top member, a typical frame structure could be envisaged. Figure 56 shows an embodiment of the present invention m which the upper and lower members are divided along a longitudinally extending vertical plane to form two structural halves 103 and 104, each having an upper member half 103'; 104' integral with a lower member half 103"; 104". The two structural halves 103, 104 may be joined by engagement means, such as, for example, screws 106, 107, 108, 109. To avoid, as far as possible, the rear ends of the top and upper members becoming unintentionally disengaged, and further causing the top member to tilt somewhat upwardly about hinge member 110' when released at its rear end from engagement with the upper member, the invention is now to be described with further reference to Figures 58-72, Figures 60a and 60b showing a cross-section at LXLX in Figure 58. In Figure 58 there is provided at the rear end of an upper member 112, female snap-engagement means 113, 114. When a male snap engagement means 115' on a top member 115 of the apparatus is located in and pushed into e.g. hole 113' of means 113, the two means will snap-engage, as indicated on Figures 60a and 60b. In order to release the rear end of the top member from the end region of the upper member, a tool may be inserted through a hole in a side wall of upper member 112, such as hole 114" to move the hook-like engagement means 115' away from engagement with the means 113. Thus, it will take some effort to tamper with the top member 115 to disengage it from the upper member 112. Whenever it is desirable to "open-up" the top member to replace a message card with a new one, Figure 62 i lustrates how a spring means 116 may bring the top member to a desired tilt angle. The spring means 116 can be fixed with one end in a pocket in the top surface of the upper member 112 which can be m the form of a spring means 118 partly stamped out of a top face of upper member 119 and bent slightly upwardly. The upper member could instead be without such spring means, e.g. as shown in Figure 61. In order to detachably lock a rear part 120' of top member 120 to a rear part 119'; 121' of the upper member 119; 121, respectively, there are provided at the rear part 119'; 121' engagement means 122; 123 having a bead 122'; 123' which is snap-engageable with a bead 124 on the inner circumference of the top member 120. By pushing in said engagement means 122; 123, it is possible to release said snap-engagement. However, both engagement means 122, 123 must be operated in order to release fully the snap- engagement between said rear part 120' of the top member 120 and the rear part 119' or 121' of the upper member 119 or 121. Instead of providing spring means at the rear region of the upper member to bring the top member so as to tilt slightly upwardly when the rear region of the top member 144 (as shown in Figures 70 and 72) is disengaged from the rear region of the upper member 145, it may be ust as convenient to provide a spring element 146 which is to be located at a front region of the upper member 145, forming with a section of said element, at least partly, almost an inner lining of the female hinge member 147 located at the front of the upper member 145, as more clearly seen from Figure 70. Thus, the spring element has a lower portion 146' fitting into said female hinge member 147 and an upper, substantially upright portion 146" which can engage with some spring force tension a lower side 144' of the top member when said top member is turned to the left, as seen in Figure 70 (or to the right when viewing figure 72) . The male hinge member 148 as shown in Figure 70 fits snugly into the female hinge member 147, and it is clearly seen the radial play d available to the member 148, as discussed in connection with Figure 57. As indicated in e.g. Figures 4, 5, 21, 22, 30, 34, 36, 46, 60b, 67 and 69, it is possible to have the top member hinge connected to the upper member at a front end of the upper member. Although twin snap lock means could be provided at the rear end of the upper member to avoid accidental or deliberate tampered lifting of the top member rear end, it may, however, prove desirable to provide an even more tamper-proof connection between a top member and an upper member. Accordingly, an arrangement as that shown in Figures 73- 77 is proposed. An upper member 149 has a female hinge means 150 provided at a rear end of the upper member 149 for receiving a male hinge means 151 provided on a top member 152 at a. rear end thereof. The top member could be of any suitable configuration and not necessarily limited to a frame-like structure as shown. A hook-like engagement means 153 is located at a front end of the upper member 149 and is so desired as to snap- engage with a ledge or offset 154 at the inside front end of the top member 152. In order to disengage an engagement between the hook-like means 153 and the edge or offset 154, a pm or other tool, e.g. a thin screwdriver (not shown) can be pushed through a small hole 155 located in the front end of the top member 152, suitably above the ledge or offset 154. This means that when a person holds the filler gun, the hinge connection 150, 151 will be adjacent the gun handle, and the snap engagement locking will be at the front region of the gun head. At least, no tampering can be made with the interconnection between the top member and the upper member when a person is filling a tank on a vehicle, and any further attempt must be made with a tool. With reference to in particular Figure 7 of the drawings, and also Figure 26, and further with reference to Figures 13, 16, 19, 21, 22, 38 upper members are shown as having a peripheral outline of substantially oval form. Further, the top member has also a peripheral outline of substantially oval form. Suitable dimensions of the top member in the longitudinal direction are in the range of 110-140 millimeters and a maximum transverse dimension in the range of 80-105 millimeters. Preferably, the longitudinal dimension is in the range of about 120-135 millimeters and the maximum transverse dimension in the range of about 90-100 millimeters . As previously mentioned, the existence in any given market area of a plurality of differently sized and/or shaped filler guns creates a problem. More specifically, this ordinarily would require the printing and distribution of a plurality of filler gun message cards of different sizes and/or contours. This would adversely impact on the widespread use of filler gun advertising messages. To obviate this, a feature of the present invention is to provide a "family" of carrying bodies, each carrying body of the family having side and bottom portions which are sized and shaped to conform substantially to the size and shape of the corresponding bottom and side exterior surfaces of a particular model of filler gun. However, the shape, size, and configuration of at least the upper portions of the carrying body, i.e. near the location of the top display surface, can permissibly be of substantially uniform shape and size for substantially all the different fill&r guns of a family of such guns. More specifically, the top message supporting surface of any carrying body is preferably sized and configured so as to be removably attachable to that carrying body's side and bottom portions. As a result, the top message supporting surface is then readily detachably secured to the aforesaid bottom and side portions of the carrying body. The top message supporting portion is provided with a supporting surface of a size and configuration which is adapted to removably support thereon the standardized shape and size of message card. Figures 78 and 79 illustrate filler guns having different sizes and configurations. For example, the height of the gun handle portions are substantially different, with the height of the gun handle in Fig. 79 being in excess of the height of the gun head shown in F g. 78. The nozzles of the gun heads are also shown as being different in diameter. Furthermore, the breadth of the filler gun head in Fig. 79 is, on the other hand, less than that of Fig. 78. Despite these differences in sizes and contours of the filler guns illustrated in Figs. 78, and 79, it is clearly shown that the top display surface in both drawings is of the same size and configuration in both Figures 79 and 78 so that both can support on their upper display surfaces message cards all of the same size and configuration. Although preferred embodiments of the present invention have been shown and described, it will be possible for a person skilled in the art to modify the present display apparatus, and the scope of the present invention is there for only to be limited by the features of the attached patent claims and technical equivalents thereof. Although the invention has been specifically described and claimed with reference to the use on the filler gun of a fuel pump, it will be readily appreciated that the present invention could be used on other types of fluid filler guns, such as typically found at service stations for automobiles, and that such use would also lie within the meaning of technical equivalence .

Claims: Claims 1. Display apparatus removably attachable to a filler gun of a fluid pump, the filler gun including in series connection a gun nozzle having a forward discharge end and a rear end, a gun head having both a forward end portion which connects with the rear end of the gun nozzle and a rearward handle portion whose forward end connects to said gun head, said display apparatus comprising: a carrying body adapted to be fitted onto said filler gun, said carrying body having an upper surface defining an elongate display surface for messages, said carrying body compnsmg a first member and a second member and means for releasably interconnecting said first and second members, said first and second members being shaped to generally conform, when so interconnected, to enclose the side, bottom, and upper portions of the gun head, and means cooperative with the upper surface of the carrying body for supporting a replaceable message card placed on said display surface. 2. Apparatus removably attachable to a filler gun of a fluid pump, the filler gun including a fluid gun nozzle, a gun head having internally located fluid valve means with valve outlet means communicating with said nozzle and valve inlet means communicating with fluid supply means extending through a handle of the gun, said handle having lever means operatively connected to said valve means, comprising: a carrying body for a graphic message, said body being adapted to fit over the filler gun, said carrying body comprising a lower member, and an upper member releasably engageable with said lower member, said lower member having two side panels and means interconnecting the side panels, said lower member, when the two side panels are brought to lie against said gun head, substantially fitting around a lower part of the gun head, and sa d side panels having at a top region thereof first interlocking means, and said upper member being formed as cap-like means to fit over an upper part of the gun head, and having second interlocking means for releasably engaging said first interlocking means on said lower member, and a top member releasably engageable with said upper member, space being provided between the upper surface of said upper member and a portion of said top member for locating a replaceable message card when said top member and said upper member engage. 3. Display apparatus removably attachable to a filler gun of a fluid pump, the filler gun including in sequence a barrel, a head portion, and a handle, the barrel joining the head portion at a first junction, and the handle joining the head portion at a second junction, the display apparatus comprising: a carrying body adapted to be fitted onto the filler gun, said carrying body including a lower member configured to cover the sides and bottom of the head portion, and an upper member attachable to the lower member, configured to cover the top of the head portion, wherein said upper member has a front end and a rear end and an upper surface extending therebetween; and a display support provided in the upper member . 4. Display apparatus, removably attachable to the filler gun of a fluid dispensing pump, for supporting thereon a replaceable message card of a predetermined fixed size and configuration notwithstanding that the display apparatus may be formed of different dimensions and configurations to accommodate different sizes and configurations of filler guns, said display apparatus comprising: at least two shell-like members so dimensioned and configured that, when mated to each other, they reasonably conform to the particular outer dimensions and configurations of the filler gun to which they are intended to be fitted, and means for releasably joining said at least two members to thereby form a shell whose interior substantially conforms to the exterior dimensions of at least the bottom and side portions of the gun head; and means detachably secured to at least one of said two members to provide an upper support surface of said exterior shell, said means having a surface area of a size and configuration to enable said replaceable message card with its predetermined fixed size and configuration to be removably affixed to filler guns of different sizes and configurations . 5. Apparatus according to claim 1, wherein said cooperative means is pivotally connected to said carrying body. 6. Apparatus according to claim 1, wherein said cooperative means is located along the peripheral outline of the upper member and comprises a frame formed with open space between opposite sides of the frame, the frame having a first element for lying over a marginal top edge portion of said upper surface of said upper member, and a second element integral with said first element and further integral with said upper surface of said upper member. 7. Apparatus according to claim 1, said carrying body being divided along a longitudinally extending vertical plane to form two structural carrying body halves, each half consisting of an upper member half integral with a lower member half, said carrying body halves attachable with each other, and the upper member of the carrying body configured to cover the top of the head portion, said upper member having a front end and a rear end and a curved surface extending therebetween; and a display message card support is provided by an upper surface of the upper member. 8. Display apparatus according to claim 3, wherein said upper member has an upper surface for locating a replaceable message card, said upper surface having along at least a portion of its peripheral edge an upwardly extending rim, and means protruding up from said top surface for releasably engaging holes said message card. 9. Apparatus according to claim 1 or 5, wherein said cooperative means is a pivotally connected lid with a transparent face portion for viewing said message card therethrough, and a peripheral skirt portion depending from said face and having means for releasably engaging an upper peripheral portion of said carrying body. 10. Apparatus according to claim 1 or 5, wherein said cooperative means is formed as a frame with open space between opposite sides of the frame, said frame having a first element lying over a marginal edge portion of said upper surface of said carrying body, and a second element integral with said first element for releasably engaging an upper peripheral portion of said carrying body. 11. Apparatus according to claim 3, wherein said first element has a portion carrying information related to type of fuel supplied from said gun. 12. Apparatus according to any one of claims 1-8, wherein said upper surface of said carrying body has a curved configuration along its length. 13. Apparatus according to claim 1 or 5, wherein said cooperative means has a curved configuration along its length. 14. Apparatus according to claim 1, wherein said first member is made of a substantially hard plastic material, e.g. polyamide . 15. Apparatus according to claim 1, wherein said second member is made of a substantially hard plastic material, e.g. polyamide . 16. Apparatus according to claim 1 or 5, wherein said cooperative means is made of a substantially hard plastic material, e.g. polyamide. 17. Apparatus according to claim 2, wherein said first interlocking means are formed as male elements in the form of snap hooks, and said second interlocking means are formed as female elements having means for receiving and releasably engaging said hooks. 18. Apparatus according to claim 2, wherein said top member is a lid with a transparent face portion for viewing a message therethrough when said message card is located at said space, and a peripheral skirt portion depending from said face and having means for releasably engaging an upper peripheral portion of said top member. 19. Apparatus according to claim 2, wherein said top member is formed as a frame with open space between opposite sides of the frame, said frame having a first element lying over a marginal edge portion of said upper surface of said upper member, and a second element integral with said first element for releasably engaging an upper peripheral portion of said upper member. 20. Apparatus according to claim 19, wherein said first element has a portion carrying information related to a type of fuel to be supplied from the gun. 21. Apparatus according to claim 2 or 3, wherein said upper member has first hinge means and said top member has second hinge means engageable with said first hinge means for pivotable attachment of said top member to said upper member. 22. Apparatus according to claim 21, wherein said first hinge means is a female member in the form of a cylindrical sleeve, and wherein said second hinge means is a male member which fits into said female member for releasable snap engagement therewith. 23. Apparatus according any one of claims 1-8, wherein said upper surface of said upper member has a curved configuration along its length. 24. Apparatus according to claim 2, wherein said top member has a curved configuration along its length. 25. Apparatus according to claim 2, wherein said top member has two substantially planar upper faces forming an obtuse angle. 26. Apparatus according to claim 2, 3 or 7, wherein said lower member is made of a substantially hard plastic material . 27. Apparatus according to claim 2, 3 or 7, wherein said upper member is made of a substantially hard plastic material . 28. Apparatus according to claim 2, wherein said top member is made of a substantially hard plastic material, e.g. polyamide . 29. Apparatus according to claim 2, wherein said first interlocking means are formed as male elements in the form of snap hooks, and said second interlocking means are formed as female elements having means for receiving and releasably engaging said hooks. 30. Apparatus according to claim 2 wherein said upper surface of said upper member has a curved configuration along its length. 31. Apparatus according to claim 2, wherein said lower member is made of a substantially hard plastic material, e.g. polyamide . 32. Apparatus according to claim 2, wherein said upper member is made of substantially hard plastic material, e.g. polyamide . 33. Apparatus according to any one of claims 1-8 wherein said upper surface face has a longitudinal dimension in the range of about 110-140 mm, preferably in the range of about 120-135 mm and a maximum transverse dimension in the range of about 80 - 105 mm, preferably in the range of about 90-100 mm. 34. Apparatus according to claim 2, wherein said two side panels are integrally joined at a front region thereof. 35. Apparatus according to claim 34, wherein said front region is above and below a front opening in said lower member through which said fuel gun nozzle extends. 36. Apparatus according to claim 2, wherein said interconnecting means are snap-lock means. 37. Apparatus according to claim 2, wherein said interconnecting means includes film hinges. 38. Display apparatus according to claim 3, wherein said upper member is configured to releasably attach to said lower member. 39. Display apparatus according to claim 3, wherein said display support includes a slot defined in one end of said upper member, configured to allow a display card to slide through said slot in said upper member, and a window provided in said upper member to permit viewing of the display card. 40. Display apparatus according to claim 3, wherein said display support includes a lip portion projecting from a periphery of said upper member for holding a periphery of a display card. 41. Display apparatus according to claim 40, wherein said lip portion includes a slot portion for draining moisture away from a surface of the display card. 42. Display apparatus according to claim 2 or 3, further comprising a plurality of studs extending from an inner surface of said lower member towards the head portion of the filler gun. 43. Display apparatus according to claim 2, wherein said first interlocking means are formed as male elements to fit mto said second interlocking means formed as female elements, and wherein screw means are provided to extend through said upper member, through said female elements and into said male elements to releasably engage said male elements with said female elements. 44. Display apparatus according to claim 2, wherein said first interlocking means are formed as upright members, and wherein said second interlocking means are formed as holes in a top face of said upper member with screw means extending through said holes to threadably and axia Lly engage said upright members. 45. Display apparatus according to claim 2, wherein said first interlocking means are formed as threaded fastening lugs, and wherein said second interlocking means are formed as holes in a top face of said upper member with screw means extending through said holes to threadably and axially engage said fastening lugs. 46. Display apparatus according to claim 2, therein said top member has from a peripheral region thereof a plurality of depending male engagement means, and wherein said upper member at a peripheral region thereof has a correspondmg plurality of female engagement means for receiving said male engagement means . 47. Display apparatus according to claim 2, wherein said top member and said upper member are pivotally connected at a front end thereof by means of first and second h ge means. 48. Display apparatus according to claim 2, wherein said second interlocking means is formed as male snap engagement means extending along at least part of a lower circumference of the upper member, and wherein sa d first interlocking means is formed as female snap engagement means extending along at least part of an upper rim or edge of the lower member. 49. Display apparatus according to claim 21 or 22, wherein said first hinge means has means providing radial play with said second hmge means in a longitudinal direction of said carrying body. 50. Display apparatus according to claim 2 or 3, comprising spring means operatively connected with said upper member, extending rearwardly towards a rear end of said upper member and with an increasing distance from the upper member surface, said spring means with its rearmost part configured to engaqe a rear lower side of a top member. 51. Display apparatus according to claim 2 or 50, comprising first snap engagement means located at a rear part of an inner circumference of said top member, and second snap engagement means located at a rear region of sa d upper member, said engagement means configured to release mutual engagement when manipulated. 52. Display apparatus according to claim 2, wherein said first interlocking means are in the form of a plurality of male elements extending up from said side panels, at least one of said male elements extending further up than the remaining of said plurality of male elements by a specific distance and having an abutment edge at level further up than other abutment edges on said remaining male elements, and wherein said second interlocking means are in the form of a plurality of female elements for receiving said plurality of male elements, at least one of said female elements configured to receive said at least one of said male elements and having an abutment edge at a level further up towards the top face of the upper member than the level of other abutment edges on remaining of said plurality of female elements. 53. Display apparatus according to claim 2, 3 or 34, wherein said lower member at its front has a front panel with its top region upwardly open with an approximate outline configuration of a letter U or an inverted letter omega (Ω) . 54. Display apparatus according to claim 19, wherein said first element has a portion carrying information related to type of fuel supplied from said gun, and wherein said information is provided by through holes in said first element . 55. Display apparatus according to claim 19, wherein said frame is provided on its lower face with a plurality of studs, and wherein said message card is provided with a corresponding plurality of holes for engaging said studs. 56. Display apparatus according to claim 55, wherein the upper member is provided with a plurality of holes for receiving that part of the studs extending past a rear surface of the message card. 57. Display apparatus according to claim 2 or 3, further comprising a top member engageable with said upper member to accommodate a display message card between said top member and said upper surface. 58. Display apparatus according to claim 2 or 3, comprising spring means operatively connected with said upper member at front region thereof, said spring means having an upright portion and an angle to a longitudinal axis of said upper member, said upright portion configured to engage a forward lower side of said top member to provide a spring force against said top member, and wherein said spring has a portion thereof located adjacent a female hinge member at said front region of said upper member. 59. Apparatus according to claim 21 or 22, wherein said first and second hinge means are located at a front end of said upper and top members, respectively, and wherein first and second releasable snap lock means are located at a rear end of said upper and top members, respectively. 60. Apparatus according to any one of the preceding claims wherein said gun head is covered by a protective boot of rubber or plastic material, said carrying body while attached to the filler gun, without said protective boot having been removed, being adapted to fit over the filler gun and said protective boot. 61. Apparatus according to any one of the preceding claims, wherein said carrying body while attached to the filler gun being adapted to fit over the filler gun to extend from approximately the junction of the gun nozzle with the gun head to approximately the junction of the gun head with a forward end of the handle, said carrying body including a display surface for said message, said display surface, when said carrying body is attached to the filler gun, extending longitudinally along the filler gun from approximately the junction of the gun head with the nozzle to approximately the junction of the gun head with the forward end of the handle of the gun. 62. Apparatus according to claim 1, 2 or 3, further comprising a pliable stud member projecting from an inner surface of said carrying body towards the gun head. 63. Apparatus according to claim 4, further comprising a pliable stud member projecting from an inner surface of at least one of the shell-like members towards the gun head. 64. Apparatus according to claim 3, wherein said lower member includes a first snap engagement means and said upper member includes a second snap engagement means, said first and second snap engagement means being engageable together to connect said upper and lower members. 65. Apparatus according to claim 1, wherein said cooperative means comprises a frame pivotably attached to said carrying body. 66. Apparatus according to claim 65, where said cooperative means further comprises a locking device for locking said frame to said carrying body. 67. Apparatus according to claim 2, wherein said top member includes locking device for locking said top member to said upper member. 68. Apparatus accordmg to claim 3, wherein said display support comprises a frame pivotably attached to said carrying body. 69. Apparatus according to claim 68, wherein said display support further comprises a locking device for locking said frame to said carrying body.

Inventors: ALVERN OYVIND, ALVERN STEIN, ALVERN, OYVIND, ALVERN, STEIN
Applicants: ALVERN OYVIND, ALVERN STEIN, ALVERN, OYVIND, ALVERN, STEIN
Application year: 1997
Main classification: B67D5
IPC codes: B67D5, G09F3, G09F23