Source: http://www.google.com/patents/US7614571?dq=6,064,942
Timestamp: 2014-12-26 06:12:38
Document Index: 219537557

Matched Legal Cases: ['art 12', 'art 18', 'art 18', 'art 36', 'art 37', 'art 36', 'art 49', 'art 50', 'art 50']

Patent US7614571 - Disposable cup to be set up on a spray gun for preparing, applying and ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsDisposable cup for preparing, applying and preserving a paint to be set up on a paint spray gun characterized in that it includes on one of its end faces a closable vent device (7) forming a vent valve with valve duct (22) and valve plug (25) which allows when opened, to let the air pass for occupying...http://www.google.com/patents/US7614571?utm_source=gb-gplus-sharePatent US7614571 - Disposable cup to be set up on a spray gun for preparing, applying and preserving a paintAdvanced Patent SearchPublication numberUS7614571 B2Publication typeGrantApplication numberUS 12/197,637Publication dateNov 10, 2009Filing dateAug 25, 2008Priority dateAug 26, 2003Fee statusPaidAlso published asCA2508760A1, CA2508760C, CN1723088A, CN100435972C, DE602004018653D1, DE602004030959D1, EP1658143A2, EP1658143B1, EP1990099A1, EP1990099B1, US7416140, US20060113409, US20090078790, WO2005018815A2, WO2005018815A3Publication number12197637, 197637, US 7614571 B2, US 7614571B2, US-B2-7614571, US7614571 B2, US7614571B2InventorsMichel Camilleri, Joseph GuarinoOriginal AssigneeMichel Camilleri, Joseph GuarinoExport CitationBiBTeX, EndNote, RefManPatent Citations (29), Referenced by (2), Classifications (17), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetDisposable cup to be set up on a spray gun for preparing, applying and preserving a paintUS 7614571 B2Abstract Disposable cup for preparing, applying and preserving a paint to be set up on a paint spray gun characterized in that it includes on one of its end faces a closable vent device (7) forming a vent valve with valve duct (22) and valve plug (25) which allows when opened, to let the air pass for occupying the inner volume that empties and when closed, to close liquid-tightly the opening (6) of air passage to form a container for the preparation of the paint and then to form a pot for the preservation of the leftover paint. This invention is of interest to manufacturers of paint spray guns.
1. A disposable cup to be set up on a spray gun for at least one of preparing, applying and preserving a paint, said cup comprising:
a cylindrical or truncated cone-shaped body (1), and
a cover (4) for closing the body (1), whereby the body (1) includes a bottom (3) with a vent opening (6) closable by a vent device (7), and a side surface (2) protruding from the bottom (3) of said cup forming an annular peripheral edge (5) which height is such that said vent device (7) is recessed relative to a plane defined by an upper ridge of the annular peripheral edge (5), forming a support edge when said cup is standing upright on a flat support, and
the cover (4) comprises a filter (15), and an outlet duct (11) for setting up the cup on the spray gun (17), either directly or via an adaptation part (18),
the filter (15) is a disk-shaped filter (15), and the vent device (7) is a vent valve and includes a valve body (21) and a manually adjustable element (20) with a protruding end conformation, the element (20) being movable between a closed position, in which the vent opening (6) is closed in a liquid-tight way so that the cup may be used as a container for paint preparation, and an open position in which air can enter into the cup and occupy an inner volume space created by the paint drawn from the cup.
2. The cup according to claim 1, wherein the cover (4) includes an inward shoulder (14) which supports the periphery of the disk-shaped filter (15).
3. The cup according to claim 2, wherein a perimeter of the filtering part of the disk-shaped filter (15) is surrounded by annular joint (16).
4. The cup according to claim 1, wherein the movable element (20) is immobilized in the valve body (21), in the closed position, and, in the opened position, is free to move between the opened and close positions.
5. The cup according to claim 1, wherein the valve body (21) is of tubular shape and is formed as a valve duct (22) along which the movable element (20) moves between the closed position and the open position.
6. The cup according to claim 4, wherein the height of the valve duct (22) is less than a height of the annular peripheral edge (5) protruding from the bottom (3) of the cup.
7. The cup according to claim 1, wherein the moving element (20) is a valve plug (25) with a body of general cylindrical shape having, at one end, an upper peripheral edge (26) forming a shoulder, and at an opposite end, a central protrusion (28, 35) and immobilization structures (29, 30) at the side surface for holding the moving element (20) in the open or closed positions.
8. The cup according to claim 6 wherein the central protrusion (28, 35) is a tapered protrusion (28) of the pin-type having a size and form suitable for complete liquid-tight closing of the vent opening (6) when the moving element (20) is in the close position.
9. The cup according to claim 6, wherein the valve plug (25) or a second identical valve plug (33) can be set up on the outlet duct (11) of the cover (4) in order to form a paint pot for preservation of leftover paint.
10. The cup according to claim 1, wherein the material of the body (1) is one of opaque or translucent material for filtering ultraviolet rays.
11. The cup according to claim 1, wherein the side surface (2) of the body (1) has a graduated scale (8) extending along the height of the cup (1).
12. The cup according to claim 1, wherein the movable element is a solid or hollow valve plug (25) having a general cylindrical shape, with an upper peripheral edge (26) forming a shoulder, a frontal surface of a lower end with a central protrusion, the side surface having immobilization structures for holding in the two positions or two set back annular elements, and at least one air passage. Description
This application is a divisional of U.S. patent application Ser. No. 10/540,777, filed Jun. 27, 2005, which is a National Stage completion of PCT/IB2004/003552, filed Aug. 26, 2004, which claims priority from French Patent Application Serial No. 03/10177, filed Aug. 26, 2003.
FIELD OF THE INVENTION This invention refers to a disposable cup to be set up on a paint spray gun for preparing and applying paint, and preserving the unused or leftover paint.
BACKGROUND OF THE INVENTION It is known that spray gun painters have to face difficult operations in preparing the paints, and transferring them from one container into another, which introduces the risk of spillage and paint loss. It is also known that due to increasing costs of labor, all employers try to find solutions allowing for an increase in rapidity for the interventions.
These solutions reduce the time involved in cleaning equipment and reduce the use of cleaning products based on solvents, which are often not environmentally friendly.
SUMMARY OF THE INVENTION The general object of this invention is to remedy these drawbacks and provide additional advantages based on its own characteristics.
For this purpose, this invention refers to a disposable cup for the preparation of a paint and its application with a spray gun. This cup being set on a gun in particular a gravity gun, and having a body, e.g. in the general shape of a truncated cone pot with a bottom including an air outlet and a cover whose outlet conduct is fixed on an adaptor which will be fixed or mounted on the gun, characterized in that the cup includes on one of its walls a closable vent device with a moving part which allows, when opened, air to enter into the cup to fill the emptying volume and when closed, seals the air outlet in at least a liquid-tight way, in order to make up a container for preparing the paint and to close the outlet duct of the paint by a second moving part, preferably identical to the first one, to provide a container which preserves the paint from air-contact, in order to store the leftover paint.
BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and advantages of the invention will appear in the following description, given as an example and accompanied by the drawings where:
FIG. 1 is a general perspective view of the disposable cup according to the invention,
FIG. 2 is a cross sectional view of the lower part through the closable vent device,
FIG. 3 is a cross sectional view of the cover equipped with a plug,
FIGS. 4 and 5 are cross sectional views showing the valve plug in its two characteristic positions respectively open and close,
FIG. 6 is a perspective view of the lower part of the cup showing the valve duct protruding from the bottom,
FIG. 7 is a perspective view of the whole body of the valve plug,
FIG. 8 is a partially sectional view and profile view of the disposable cup according to the invention set up on a gravity gun,
FIGS. 9 and 10 are cross sectional views of two embodiments of the closable vent device in two positions of the moving part,
FIGS. 11 and 12 are cross sectional views of a closable vent device of the shutting down type,
FIG. 13 is a cross sectional view of the outlet end of the cup showing the use of a removable vent part identical to that one shown in FIGS. 11 and 12 as blanking plug of the outlet end of the cup.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The disposable cup for preparing and applying the spray paint is in the form of a container whose body 1 has for example a general cylindrical or truncated cone shape including a side surface 2, a bottom 3 and a cover 4.
The bottom 3 is placed at a certain distance away from the lower edge due to the presence of a lower peripheral annular edge 5 as an extension of the bottom 3. The side surface 2 protrudes in order to provide stability when the cup is standing on a horizontal flat support. The bottom 3 is crossed by an opening 6 forming vent, thus allowing the air intended to replace the used paint in volume to enter and the paint to flow. This air passage vent opening 6 for airflow can either be central or otherwise, as shown in the Figs. This vent opening is equipped according to the invention with a closable vent device 7.
The side surface 2 is smooth and has a graduated scale 8 extending along the height of the cup in successive graduations form such as 9, engraved, printed or conformed in the mass. The side surface 2 can be provided with several end reinforcement ribs such as 10 as shown in FIG. 1.
The upper face of body 1 is closed by the funnel-shaped cover 4 having in its central part an outlet duct 11 slightly tapered and cone-shaped. The cover 4 is screwed from its base onto the upper part 12 of the side surface of the body of the cup 1 on which are formed several successive ribs such as 13 forming a thread, for example discontinuous, receiving the corresponding thread conformation of the cover 4 by screwing on the cup body. The cover includes an inward shoulder 14, as shown in FIG. 8, which supports the periphery of a disk-shaped filter 15. The filtering part is surrounded by a perimeter annular joint 16 (FIG. 3).
The cup is set on a paint spray gun, preferably but not exclusively, on a gravity gun 17 by means of an adaptator part 18. This adaptator part 18 can be for example, a hollow piece to be screwed or otherwise assembled or fixed by one of its ends on a protrusion 19 for example a threaded protrusion of the gun and receiving the central conical outlet duct 11 of the cover 4 by tight conical taper fitting. Of course, a lot of other connection means may be appropriated as well as different other existing or future adaptator parts.
The closable vent device 7 of the valve type, utilises a movable element 20 and a valve body 21 along which the movable element 20 moves between a closed position and an open position of the vent opening 6.
In this base 22 forming a duct, an annular rib 24 is moulded protruding from the inner side surface. The annular rib 24, called a snap-in location rib, provides each time a snap-in location for the movable element 20 to be manually moved inside the valve duct 22. Because of its shape, this part has been called valve plug 25. This valve plug 25 ensures the opening and the closing of the valve in two precise positions. The first one is the closed position in which the end of the plug fills the passage vent opening 6 across the bottom 3 to close it tightly without protruding from the inner face of the bottom 3 and is held in this position by a snap-fit effect. The second position called the open vent position, in which the end of the valve plug 25 is moved away from the passage vent opening 6 of the passage across the bottom 3 of the cup and maintained in this position by a second snap-in protrusion. These positions are those of the valve plug represented in FIGS. 4 and 5.
For this purpose, the conformation of an example of embodiment of a valve plug 25 is shown in perspective view in FIG. 7.
In order to allow the admission of air in the open position, there is a play or gap between the upper parts of duct 22 and plug 25. This play can be obtained by an increasing of the inner diameter of the upper part of duct 22 or a correlative reduction of the diameter of the upper part of the plug 25 or both simultaneously. In order to hold the plug 25 in central position, three or four centering longitudinal protrusions for example semi-cylindrical shaped ones such 27, of suitable thickness, are provided on the higher part of the inner side surface of duct 22.
Vice versa, these centering protrusions can also be on the side surface of the plug 25.
The plug ends in its lower part with a closing form, for example, a tapered protrusion 28 of the pin type which has a form and a size suitable for complete liquid-tightness closing the vent opening 6 in pushed position when the vent moving part or plug is in the low closed position.
On the side face of the valve plug 25 besides its lower end are formed two longitudinal vent notches 31 and 32 diametrically opposed, extending from the lower end face along the length. The length of these notches is such that they go through the first groove 29 corresponding to the closing stop and extend beyond the latter without reaching the second groove 30. The depth of the vent notches 31 and 32 makes their base be under the base of the first groove 29 in order to form an air passage under the annular protrusion 24 when the valve plug 25 is in its first push position, that is to say in closed position or first protrusion, the annular rib 24 being engaged in the first groove 29.
In order to proceed with painting, the painter simply needs to close the cup by its cover with its filter, to set up the spray gun on the cover outlet duct eventually with its adaptator part by a simple and fast movement, which is possible due to the tapered conical fitting, to turn the spray gun upside with its cup in place and move the valve plug 25 to the open position i.e. the vent protrusion is received by the snap-in effect in the first groove, namely the snap-in groove. The painter can thus work easily and without concern for a paint leakage or an untimely paint escaping through the upper side whenever the cup is tilted.
The central protrusion of the valve 22 can be covered by the valve closing movable element 20 as a cap. Thus, a female piece conformed as a cap presenting a central sealing part, which extends downwards according to a general conical form terminated by a sealing conformation, for example a pin in accordance with this function, can be appropriate. In the same way, the sealing pin embeds itself tightly in the vent opening 6 when the cap is in low position without protruding out of the lower face of the base. The characteristic positions can be marked by cooperation between grooves and annular protrusions, as previously, or other equivalent shapes. The passage of air is realized by longitudinal channels in the cylindrical protruding part or other equivalent means or embodiments.
FIGS. 9 to 13 concern other embodiments of the closable vent device.
First of all, FIG. 9 shows an alternative embodiment of plug type 34, for example one to be screwed, whose lower end is terminated by a closing pin 35 for the vent opening 6. The body of the plug 34 has a general T-shaped form with a cylindrical lower part 36 housed in the hollow cylindrical base 22. It continues with a cylindrical head part 37 with a larger diameter eventually surmounted by an even larger part. The body of the plug 34 has a central inner channel 38 for the air to pass and be admitted into the cup, which is divided towards the lower end into two branches 39 and 401. The high position corresponds to the open position of the passage of air at the time of painting while the plug in low position ensures the orifice or the opening of the cup bottom to be closed by the closing pin 35.
The holding in position or location of the plug 34, its guidance downwards towards the closed position and its locking in this position are carried out, for example, by a screw thread. Therefore, male thread 41 is formed in protrusion in the side surface of the cylindrical part 36 of the plug locating with a female thread 42 formed in the inner side surface of the cylindrical protrusion 22. When completely screwed in this corresponds to the closed position in which the plug can be held by snap-in protrusions or by any other means for example with a catch. The same methods apply for the high open position. A fast closing-opening device of the quarter turn type or whatever other may also be used.
FIG. 10 shows a further embodiment of the plug 43 of the kind with a lower closing pin 35. In this alternative, the air inlet is realized by, at least one or preferably two transverse channels such as 44 placed on the base of the cylindrical reception protrusion 22 of the cup bottom. The switch to the closed low position is also carried out by screwing as previously, i.e. by the male thread 41 on the cylindrical part of the plug body meeting with a female thread 42 in the inner side surface of the cylindrical protrusion or vice versa.
The additional alternative embodiment shown in FIGS. 11 to 13 is of the pivoting body type between a closed position in which it is tilted and hidden in the thickness of the bottom wall of the cup and an opening position in which it is upright.
The body of the pivoting movable element 45 of this additional alternative embodiment has the general shape of a whistle set up pivoting in a cavity 46 formed in the bottom wall 3 of the cup by two transverse lugs such as 47 lodged for example by clamping in corresponding opposed slots. This body is longitudinally crossed by an air passage channel 48 which comes out in open position facing or close to the opening 6 of cavity base 46 which is the vent opening in bottom wall 3 of the cup as shown in the drawings. The body of the tilting movable element 45 is made up of a linear elongated part 49 and of a bulb-shaped part 50. In the lower bulb-shape part 50 is conformed a stopping and closing pin 51 intended for closing the opening 6 in the bottom wall 3 of the cup in closed tilted down position and for holding the pivoting movable element 45 in this position. The protrusion corresponding to the pin 51 will ensure that the end of this latter will not protrude out of the inner face of the bottom but will at best flush with this one. The pivoting movable element 45 of this closable vent device has a block 52 in transversal protrusion acting as a means of gripping, as a pivot stop in opened position as shown in FIG. 12 and as a closing plug for the cup outlet should paint preservation be required as shown in FIG. 13.
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