Patent Publication Number: US-3967765-A

Title: Multiple purpose nozzle

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation in part of patent application Ser. No. 278,997 filed August 9, 1972, now patent No. 3,843,030, the contents of which are incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     Products to be dispensed, such as consumer products, are generally contained in a variety of packages. Some are dispensed from &#34;squeeze&#34; bottles, containers bearing pumps or other product propelling mechanisms. In most instances, the discharging mechanisms are protected against accidental product discharge or leakage either during shipment, storage or display on retail shelves or racks. For such purposes, safety or overcaps, pins and plugs among other approaches have been employed with various degrees of success. Some have been ineffectual for one reason or another, while others costly because of the relatively high expense of manufacture. More importantly, once the safety mechanism was de-activated, the product could thereafter be accidentally or inadvertently discharged. In addition, the available discharge pattern of the prior art packages were as a rule fixed and not selectively variable by the consumer. 
     SUMMARY OF THE INVENTION 
     It is a principal object of the present invention to provide a multi-purpose nozzle for the discharge mechanism of bottles or containers which may assume a first position at which the mechanism is closed or sealed against premature, accidental or inadvertent discharge or leakage of the product to be dispensed and one or more other positions at which the product may be dispensed in a corresponding number of discharge patterns depending upon the selection of the consumer. 
     Another object is to provide a multi-purpose nozzle of the foregoing type that embodies relatively few parts, each individually simple and inexpensive to manufacture and assemble, thereby maintaining nozzle cost at an absolute minimun. 
    
    
     Other objects and advantages will become apparent from the following detailed description of the invention which is to be taken in conjunction with the accompanying drawings. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     In the drawings: 
     FIG. 1 is an exploded perspective view of a multi-purpose nozzle of this invention embodying only two parts with central portions broken away, removed and sectioned; 
     FIG. 2 is a front view of the parts assembled with the nozzle in a spraying position; 
     FIG. 3 is a top view thereof; 
     FIG. 4 is a longitudinal sectional view taken along the line of 4--4 of FIG. 2; 
     FIG. 5 is a front view of the assembled nozzle turned to a closed or sealed position at which the product cannot be dispensed; 
     FIG. 6 is a top view thereof; 
     FIG. 7 is a longitudinal sectional view taken along the line 7--7 of FIG. 5; 
     FIG. 8 is a front view of the assembled nozzle turned to a position at which the product may be discharged in a stream; 
     FIG. 9 is a top view thereof; and 
     FIG. 10 is a longitudinal sectional view taken along the line 10--10 of FIG. 8. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The multi-purpose nozzle illustrated in the drawings is comprised of only two parts, tubular member 20 and cap 22. Tubular member 20 may form part or be an integral extension of the discharge end of a dispenser which may assume any one of a number of varieties, as for example, a pump actuated dispenser, aerosol dispenser or squeeze bottle type of dispenser, to mention a few. Tubular member 20 is provided with a tubular extension 24 of lesser diameter than the remainder of the exterior of tubular member 20 so as to form a shoulder 26 to receive rim 28 of cap 22. Thus, when cap 22 is fully seated on tubular member 20, rim 28 will be in engagement with shoulder 26 while permitting relative rotation between the cap and the tubular member. If desired, appropriate spaced stop shoulders can be positioned on the tubular member 20 and on cap 22 to define various discharge positions when orienting the nozzle in one of its plurality of discharge positions. 
     Tubular extension 24 includes a free end 30 having a central opening 32 which extends into communication with a pair of opposed channels 34 which communicate with the source of fluid to be dispensed. Centrally located within tubular extension 24 is a cylindrical core portion 36. The core portion is preferably positioned coaxially with respect to the remainder of tubular member 20. Surrounding core portion 36 and coaxially positioned with respect thereto is a core skirt 38. Tubular extension 24 coaxially surrounds core skirt 38. A pair of opposed notches 40 are located in core skirt 38 adjacent the exposed rim 42 thereof. Skirt 38 is spaced from tubular extension 24 so as to provide a continuous passageway therebetween from channels 34. 
     Core 36 extends beyond edge 42 of skirt 38 and has a pair of opposed notches 44 in its end wall 46. When all of the slots in tubular member 20 are exposed, fluid can flow from channels 34 through slots 40 in skirt 38 and through notches 44 and the end portion of core 36. 
     Cap 22 is adapted to be rotatably disposed about tubular extension 24 between a closed position at which the material to be dispensed is sealed and may not be discharged and either of two dispensing positions for discharging a spray or stream. Cap 22 includes a substantially flat end wall 48 from which extends a tubular skirt 50. The skirt 50 terminates in a rim 28 which is adapted to seat on shoulder 26 of tubular member 20. End wall 48 is provided with a discharge orifice 52 which is in communication with the hollow interior 54 of a centrally located boss 56 extending inwardly from end wall 48. Boss 56 is open in a direction opposed to end wall 48 and includes a pair of opposed slots 58 which are open to end rim 60 of boss 56. 
     The chamber 54 within boss 56 is large enough to receive core portion 36 therein in rotational relationship when cap 22 is positioned on tubular member 20. Additionally, the diameter of boss 56 is less than the inner diameter of core skirt 38 so that the side walls of boss 56 are received within skirt 38 when the cap is interengaged with the tubular member. 
     On the inner surface of end wall 48 adjacent to outlet orifice 52 is a pattern of recesses through which fluid flows when traveling from tubular member 20 to outlet orifice 52. Included in the pattern of recesses are a pair of opposed shorter legs 62 which are of lesser length than the diameter of core 36. Angularly spaced from the shorter legs 62 are a pair of longer recesses 64 which extend slightly further than the outer diameter of core 36 so as to be slightly exposed beyond the core when the cap is coupled to the tubular member. All of the recesses 62 and 64 communicate with orifice 52. Rotation of cap 22 with respect to tubular member 20 determines the communicating or non-communicating relationship between slots 58 in boss 56, slots 40 in skirt 38, notches 44 in core 36, and the pattern of recesses on the inner surface of end wall 48 adjacent to orifice 52 thereby controlling the flow of fluid through the slots from channels 34 and out through orifice opening 52. 
     The inner wall of skirt 50 may include a continuous recess 66 which is adapted to accommodate the continuous bead 68 upon extension 24 in securing the cap on this extension. 
     When cap 22 is rotated so that slots 58 were not in alignment with slots 40 of core skirt 38, the walls of boss 56 close off slots 40 thereby closing the communicating passageway between channels 34 and the interior of skirt 38. In this position, the material to be dispensed is not permitted to travel from tubular member 20 through cap 22 and out orifice opening 52. 
     In operation in assuming that it is desired to initially dispense a product in a spray pattern, cap 22 will be turned and oriented on tubular member as shown in FIGS. 2-4. In this position, the product is adapted to pass from channels 34 into slots 40 of skirt 38, through aligned slots 58 of boss 56 with the passage through the slots being substantially lateral in direction. The product then enters the extreme edges of longer recess legs 64 which extend beyond the end wall 46 of core 36. The product then passes through orifice 52 as a spray. The spray result is provided by means of the tortuous passage into the extreme edges of legs 64 and then through the non-uniform passageway of legs 64 until it reaches orifice 52. It should be noted that there is no communication between notches 44 in core 36 and either recess leg 62 or 64 in the end wall of the cap. Therefore, the only exit for the product is through the tortuous path as described above. 
     Upon turning and rotating of the cap in a counter-clockwise direction to an intermediate position, the side walls of boss 56 are brought into alignment with slots 40 in skirt 38 thereby sealing off the passage for the products through slots 40 and preventing any discharge of the product through orifice 52. This arrangement is depicted in FIGS. 5-7. 
     Upon turning of the cap 22 a further distance until slots 58 are once again in alignment with slots 40 of skirt 38 and with notches 44 in alignment and in communication with shorter recess legs 62, a complete opening for fluid is provided for dispensing fluid from channels 34 through aligned slots 40 and 58 and through aligned notches 44 and recess legs 62 as a stream through outlet orifice 52. This arrangement is depicted in FIGS. 8-10. When it is desired to seal off the passageway once again, the cap may only be turned in either direction to an intermediate position where once again the walls of boss 56 close the passageway through notches 40 in skirt 38 preventing passage from channels 34 through orifice 52. 
     In certain applications such as when lotions are dispensed, it sometime may be desirable to dispense with the end portion of core 36 containing notches 44 and the pattern of recesses in end wall 48 of the cap adjacent to orifice 52. With this configuration, there is space between the end wall of core 36 and the end wall 48 of cap 22. Therefore, when notches 40 in skirt 38 are aligned with notches 58 in boss 56, lotion can flow through channels 34, through the aligned notches and into the space between the end wall of core 36 and end wall 48 and, exit through nozzle orifice 52. When cap 22 is rotated so that notches 58 are out of alignment with notches 40 in skirt 38, the walls of boss 56 prevent lotion from flowing between channels 34 and orifice 52. 
     Thus, the several aforenoted objects and advantages are most effectively attained. Although a single, somewhat preferred embodiment of the invention has been disclosed and described in detail herein, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.