US3368722A

US3368722A - Tube fluid dispenser apparatus

Info

Publication number: US3368722A
Application number: US609689A
Authority: US
Inventors: Robert S Wallace
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-01-16
Filing date: 1967-01-16
Publication date: 1968-02-13
Anticipated expiration: 1985-02-13

Description

Feb. 13, 1968 R. s. WALLACE TUBE FLUID DISPENSER APPARATUS 2 Sheets-Sheet 1 Original Filed July 23, 1965 'fA VE/VME E0352? 5- MAL/7C5 Feb. 13, 1968 R, s. WALLACE 3,368,722

TUBE FLUID DISPENSER APPARATUS Original Filed July 23, 1965 2 heets-sheet 2 nil/4 an 1 16 6 fwwra.

(7 i4 I Baez-1W5. mimics 1? w WA- 3. 4157 40 39 United States Patent 3,368,722 TUBE FLUID DISPENSER APPARATUS Robert S. Wallace, 2706 S. Robertson Blvd., Los Angeles, Calif. 90034 Continuation of application Ser. No. 474,293, July 23, 1965. This application Jan. 16, 1967, Ser. No. 609,689 3 Claims. (Cl. 222-214) ABSTRACT OF THE DISCLOSURE The disclosure concerns a dispenser assembly for dis pensing fluid from a tube inserted into the dispenser receptacle. A pusher lever is swingable to push against the side of the tube, and also to displace the upright arm of an L-shaped closure for unblocking a dispensing bore in the receptacle, the tube at all times being firmly shouldered in the receptacle.

This application is a continuation of Ser. No. 474,293, filed July 23, 1965, now abandoned.

This invention relates generally to dispensers and more particularly concerns apparatus for dispensing fluid in tubes.

While dispensers as a class are many and varied, they have not to my knowledge provided the unusual combinations and sub-combinations of structural elements, functions and results which characterize the present invention. The latter include the provision of a resilient tube having a neck and a liquid dispenser assembly having an upwardly opening receptacle into which the lower portion of the tube and the neck are downwardly received, the dispenser having a bore receiving the tube neck, the tube typically containing a viscous liquid tending to gravitate toward the neck so that the tube interior above the liquid fills with air as the tube resiliently expands following downward dispensing of liquid from the tube neck, and the dispenser including means having a bore closure and a tube pusher operable in conjunction to urge the closure from closing relation to the bore as the tube is squeezed between the pusher and the receptacle portion of the tube side opposite the pusher to exert compression on the air and liquid in the tube for effecting dispensing of liquid through the bore. The tube liquid may typically consist of viscous detergent or soap substance such as the commercial shampoo product of the Procter & Gamble Company known as Prell Concentrate. It is found that the dispenser cooperation with the resilient tube provides for bubbling of air into the tube after each dispensing stroke of the pusher, the latter creating air pressure in the tube above the liquid, which aids the liquid dispensing function; as to the latter, all of the liquid in the tube may be dispensed even though the pusher does not completely collapse the entire tube.

The above mentioned combinations and sub-combinations may also include the provision of a pusher which comprises a side portion of the receptacle; the provision for free projection of the tube upper portion from the receptacle so that the tube may be grasped for manual turning to effect easy replacement, as by unthreading of the neck of a used tube from the bore and threading into the latter of a new tube neck; the provision of a resilient tube having a removable cap at the upper portion thereof to facilitate refilling of dispensing liquid into the tube; the provision for sealing of the closure against the lower face of the receptacle to block unwanted leakage of liquid from the tube; and certain unusually advantageous features of construction of the pusher and closure, as will appear.

These and other objects and advantages of the invention, as well as the details of an illustrative embodiment,

3,368,722 Patented Feb. 13, 1968 ice will be more fully understood from the following detailed description of the drawings, in which:

FIG. 1 is a side elevational view of the tube and dispenser;

FIG. 2 is a frontal view of the tube and dispenser;

FIG. 3 is a horizontal section taken on line 33 of FIG. 1;

FIG. 4 is an enlarged fragmentary vertical section showing the dispenser construction;

FIG. 5 is a bottom plan view of the FIG. 1 dispenser;

FIG. 6 is a vertical section taken on line 6-6 of FIG. 4;

FIG. 7 is a vertical section taken on line 7-7 of FIG. 4;

FIG. 8 is a horizontal section taken on line 8-8 of FIG. 4;

FIG. 9 is a view like FIG. 4 but showing the tube compressed by the dispenser pusher; and

FIG. 10 shows a view showing a modified tube having a removable cap.

In FIGS. 1-9 an inverted resilient tube is seen at 10 having a lower neck 11 that is typically externally threaded. The tube may consist of resilient plastic material such as polyethylene or the like, and it typically contains a viscous liquid such as household detergent or soap, as for example the commercial shampoo product of the Procter & Gamble Company known as Prell.

Constructed to cooperate with the particular tube shown and described is a liquid dispenser assembly indicated generally at 12. The latter includes an upwardly opening receptacle 13 into which the lower portion of the tube including neck 11 is downwardly received, the assembly 12 having a bore -14, typically internally threaded, to receive the neck 11. In this regard, the free extent of the tube projecting upwardly from the receptacle facilitates ease of manual unscrewing and upward removal of a spent tube, as well as downward insertion and threading in of a new tube. The tube upper end 15 is typically sealed.

The dispenser receptacle 13 may be internally downwardly tapered at 16 for helping to vertically orient the tube 10 upon tightening of the neck 11 into bore 14. In this regard, the lower lip of the neck bottoms at bore annular ledge 100. The receptacle side wall 18 is generally cylindrical to snugly confine the tube -10, and the top rim 19 of the receptacle may slope downwardly and frontwardly toward the user, thereby to expose an upwardly projecting handle 20 of a tube pusher 21. The handle may be convex toward the tube 10 as seen in FIG. 9 for compressing the tube laterally and rearwardly toward the rear portion 22 of the dispenser wall. In this regard, one unusually advantageous way of mounting the receptacle to a wall 24 as for example in a shower stall includes the downwardly tapered dovetail connection indicated at 25. The latter includes a tongue 26 integral with the rear portion 22 of the receptacle wall 18, and a groove 27 formed in body 28 attached at 29 to the wall 24. Such attachment may be by fasteners as shown or a suitable adhesive. Tongue wings 26a interengage the groove forming wings 30, and both tongue and groove taper downwardly as seen in FIG, 5 to limit downward seating of the dispenser as well as facilitating upward detachment thereof from the body 28.

As will be seen, the dispenser includes means having a bore closure such as 32 and a tube pusher such as 21 operable in conjunction to urge the closure from closing relation to the bore 14 as the tube 10 is squeezed between the pusher and the receptacle portion 22 at the tube side opposite the pusher, to exert compression on the air and liquid in the tube for effecting downward dispensing of liquid through the bore, as is seen at 33 in FIG. 9. In this regard, the tube interior above the liquid remaining 3 in the tube fills with air as the tube resiliently expands following a dispensing stroke of the pusher 21, air bubbles entering through the tube neck and rising through the remaining liquid in the tube.

An important feature of the invention concerns the use of the pusher 21 as constituting a side portion of the container. FIGS. 2 and 3 indicate this function of the pusher, with the receptacle wall portions 18a at opposite sides of the pusher acting to hold the tube in upright position.

The above mentioned closure 32 has an upper face 39 that may be formed on plate 49, and it is carried to slide adjacent the receptacle lower face 41 through which bore -14 opens. Such sliding occurs as the closure is displaced into and out of closing relation to the bore, as for example between the closed position of FIG. 4 and the open position of FIG. 9. Faces 39 and 41 extend sufiiciently about the bore opening in FIG. 4 as to establish a seal against leakage from the dispenser of the liquid contents or" the tube 10. In this regard, the side edges 43 of plate 40 are guided in grooves 44 of the receptacle boss 45 outwardly of the seal, to maintain faces 39 and 41 in close proximity. Edge 45a of the plate acts as a knife to cut oif the outward flow of dispensed liquid upon release of the handle 20 from FIG. 9 configuration.

The closure 32 may be formed as a bracket one arm of which is formed by plate 40 and the other right angular arm 46 of which extends upwardly at the pusher side of the receptacle. The pusher 21 may have fulcrum pivot mounting 47 to the receptacle so that lever extent 48 of the pusher is provided to displace the closure bracket arm 46 to FIG. 9 position as the pusher is urged into squeezing relation to the tube. Sliding and pushing contact of the lever with the arm 46 is had at 49. A return spring 50 concealed within the receptacle is connected to post 51 on the closure 32 and post 52 on the receptacle body to return the closure into closing relation with the bore 14. Thus, the complete dispenser need include only three molded plastic parts (receptacle 13, pusher 21 and closure 32). Arm 46 is received between

wall extensions

54 and 55 as seen in FIG. 8. Closure reinforcement ribbing is seen at 56.

The receptacle contains interior hollowness at 57 which is vertically perforated at 58 for draining any shower stall water that may enter the receptacle. The plate 40 contains matching perforations 59 for draining the Water, as indicated in FIG. 7.

FIG. 10 shows an alternate form of tube 10a having a removable cap 60. Thus, refill liquid may be poured into the tube without requiring its replacement. The cap may be attached to the tube as by threads 61 to prevent internal air pressure lifting of the cap oif the tube during dispensing.

I claim:

1. For combination with a resilient plastic tube having a threaded neck and a frusto-conical shoulder proximate said neck, an improved dispenser assembly for dispensing liquid from said tube comprising (a) an upwardly opening receptacle having a reduced through bore that is internally threaded to receive said neck, an enlarged upright bore sized to closely receive-said tube and an internal taper to locate said tube shoulder, the receptacle having a front opening interrupting said enlarged bore at the front side thereof,

(b) a closure including a plate carried by the receptacle for frontward and rearward movement directly beneath said reduced bore to control escape of tube liquid therethrough,

(c) a pusher lever having operative connection with said closure at the front side of the enlarged bore and being pivotally carried by the receptacle to swing about a horizontal axis and between retracted position in which the lever has an upper portion projecting above the frontal top level of the receptacle and adjacent the tube, and advanced position in which said lever upper portion is displaced into said tube and toward the rear side of said enlarged bore which also projects above the frontal top level of the receptacle, the closure plate blocking said reduced bore in lever retracted position, and unblocking said bore in lever advanced position, and

(cl) the receptacle having a lower face through which said reduced bore opens, the closure having an upper face carried to slide adjacent said lower face, the closure being L-shaped to define an upright arm integral with said plate and extending at the front side of the receptacle, the lever upper portion being convex toward said tube to collapse the tube side inwardly and downwardly in said advanced position, the lever having a lower portion projecting at the bore side of said arm for upward sliding engagement with the inner upright side of said arm to displace the closure frontwardly upon lever swinging toward advanced position, the lower terminal of the lever remaining above said plate, and a return spring concealed by said closure proximate the lower terminal of said lever and connected to urge the closure toward said retracted position.

2. The combination of claim '1 including said tube received in the receptacle and having an upper portionfreely projecting upwardly from within the receptacle, and viscous liquid detergent in the tube.

3. The combination of claim 2 including a removable cap carried by said upper portion of the tube.

References Cited UNITED STATES PATENTS 1,583,813 5/1926 Thwaites 222-96 X 1,859,108 5/1932 Nadoolman 222-215 X 2,085,673 6/1937 Roache 222-102 X FOREIGN PATENTS 1,190,344 3/1959 France.

ROBERT B. REEVES, Primary Examiner.

N. L. STACK, Assistant Examiner.