US2559070A

US2559070A - Dispensing closure for collapsible containers with delayed-action, self-closing valve

Info

Publication number: US2559070A
Application number: US55789A
Authority: US
Inventors: Goldberg Louis
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-10-21
Filing date: 1948-10-21
Publication date: 1951-07-03
Anticipated expiration: 1968-07-03

Description

July 3, 1951 L. GOLDBERG 2,559,070

4 DISPENSING CLOSURE FOR COLLAPSIBLE CONTAINERS WITH DELAYED-ACTION, SELF-CLOSING VALVE Filed Oct. 21, 1948 IN VEN TOR.

Y Lamb folaery ATTORNEY Patented July 3, 1951 DISPENSING CLOSURE FOR COLLAPSIBLE CONTAINERS WITH DELAYED-ACTION, SELF-CLOSING VALVE Louis Goldberg, Glen Cove, N. Y.

Application October 21, 1948, Serial No. 55,789

1 Claim.

This invention relates to new and useful im-v provements in a sanitary closure for containers.

More particularly, the invention proposes a new and improved closure adapted to be used on a collapsible container having a discharge neck. The new closure is characterized by a valve body integral with the discharge neck, or removably mounted thereon. It is proposed that the valve body have a discharge orifice controlled by a valve head manually movably mounted in said body. It is proposed that said valve head have a passage through which the contents of the collapsible container may be squeezed when the valve head is in an open position. An arrangement is proposed whereby the material of the collapsible tube which is in the valve head connects with the material in the collapsible tube when the valve head is closed so as to prevent drying out.

The invention also proposes the provision of a cork or other stopper for closing the passage in the valve head for sealing the collapsible container. It is proposed that the factory supply the collapsible container sealed, and that the public pick out the closure before starting use of the contents.

It is contemplated to construct the closure of plastic or other materials.

Another object of the invention is the construction of a device as mentioned which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly set forth.

,In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a perspective view of a collapsible container provided with a sanitary closure constructed in accordance with this invention.

Fig. 2 is a fragmentary enlarged sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is a sectional view similar to Fig. but illustrated with the valve in a different position.

Fig. 4 is a transverse sectional View taken on the line 4-4 of Fig. 3.

Fig. 5 is a fragmentary side elevational view of a collapsible container with a sanitary closure constructed in accordance with still another form of the invention.

Fig. 6 is a sectional view taken on the line 6-6 of Fig. 1.

Fig. 12 is a sectional view similar to Fig. '7 but.

illustrated with the parts in a different position.

The sanitary closure for containers, in accord- :ance with this invention, is used in combination with a collapsible container l5 for holding tooth paste, shaving cream and other creams. collapsible container II is provided with a discharge neck [6 which continues into a valve body ll. The valve body I! has a top discharge orifice l8 which is of oblong shape so that the collapsible tube will discharge a ribbon of cream. However. the shape of the orifice is optional and other shapes may be used.

A valve head I9 is mounted in the valve body I! for controlling the orifice I8. The valve head I9 is in the form of a cylinder turnably supported by a stem 20 at one end and another stem 2| coaxial with the stem 20 but located at the other end of the cylinder forming the valve head. The stem 2| is provided with a small handle 22 by which the valve may be turned. The stem 20 is provided with a radial pin 23 disposed within a arcuate recess 24 formed in the side wall of the valve body I! for limiting turning of the valve head through 90.

The valve head [9 is formed with a T-shaped passage 25. When the valve is closed the stem of the T-shaped passage 25 is aligned with the neck 16 so that the contents of the tube communicates with the passage 25 and prevents drying out and hardening of material within the passage. When the valve head I9 is turned to its open position the head of the passage 25 aligns with the opening in the neck [6. The factory supplies the collapsible tube with a small stopper or seal 26 in the top end of the head of the passage 25 by which the collapsible tube is sealed closed. When the valve head I9 is in its open or closed position the contents of the tube is protected. A purchaser merely picks out the seal 26 with a needle or other sharp instrument, and then the tube is ready to be used.

In Figs. 5 and 6 a modified form of the invention is shown which is very similar to the prior The.

form, distinguishing merely in the fact that the valve body I1 is separate from the neck N5 of the collapsible tube [5. The neck I6 is formed with threads and the bottom portion tion is shown which distinguishes from the prior form in the provision of means for automatically closing the sanitary closure 'a short period of time after it has been opened. With this construction it i impossible for a user to be annoyed by discoverin that he left the tube open so that the contents has dried. Morespecifically, the improved sanitary closure includes a valve body 30 provided with a bottom threaded socket 3| by which it may be threadedly engaged upon the threaded neck of a collapsible tube. A valve head 32 is axially and slidably mounted on the valve body 30.

The valve head-32 has a stem 33 at one end which connects with an air dashpot 34 acting to normally urge the stem 33 in one direction. This air dashpot includes a perforated disc 35 connected with the stem 33. A flexible rubber air control disc 36 is mounted upon the disc 35 and has small bleed openings 33 through which the air may slowly leak. A spring 38 normally urges the disc 35 in one direction. The disc 35 is slidable in a chamber 39 which is supplied with air through an opening 40.

The valve head 32 is also provided with a stem 4| projecting from the valve body 30. This stem is provided with a handle 42 by which it may be manipulated. The stem 4| is also provided with a radially projectin pin 43 which engages an L-shaped groove 44 formed in the Wall of a chamber 45 formed in the valve body 30. The stem 4| is provided with a small square section 46. A disc 4! is slidably mounted on the square section 46. A spiral spring 48 has one end connected with the disc 41 and ha its other end connected with the wall of the chamber 45. This spiral spring 48 urges the valve 32 into a closed position. The valve 32 is provided with a T-shaped control passage 49.

The operation of this form of the invention is as follows:

The sanitary closure is shown in its closed position in Fig. 7. It may be opened by first turning the handle 42 through 90 so that the pin 43 moves along the arcuate portion of the groove 44. Then the handle 42 may be pushed inwards so that the pin 43 moves along the longitudinal poition of the groove 44. This latter motion forced the disc 35 against the action of the spring 38. The air quickly passes through the perforations of the disc 35 and around the edges of the flexible rubber disc 36. The closure is now opened and some of the contents of the collapsible tube may be squeezed out at the users convenience. However, after a short period of time, for example a half minute, the spring 38 will have moved the disc 35 back to its original position. By this time ,the pin 43 reaches the arcuate portion of the groove 44 and then the spiral spring 48 turns the preferred embodiments of my invention, it is to valve 32 into its closed position.

While I have illustrated and described the be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications comingwithin the scope of the invention as defined in the appended claim.

Having thus described m invention, what I claim as new, and desire to secure by' United States Letters Patent is:

In combination with a collapsible container having a discharge neck, a valve body on said discharge neck and having a discharge orifice, a valve head mounted in said valve body for controlling said orifice, a stem for controlling said valve head, resilient means urging said valve head into its closed position, and means for delaying operation of said resilient means for a short period of time, comprising a dashpot for holding the valve in its open position, a pin connected with said valve, said valve body having a groove in which said pin works for controlling the operation of said resilient means in conjunction with the position of the valve head as controlled by said dashpot.

LOUIS GOLDBERG.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 797,471 Theyret Aug. 15, 1905 1,236,215 Schape Aug. 7, 1917 1,430,313 Millity Sept. 26, 1922 1,630,555 Witt May 31, 1927 1,782,980 Ude Nov. 25, 1930 1,960,393 Otten May 29, 1934 1,961,173 'Schutte et al June 5, 1934 1,976,867 Verge Oct. 16, 1934 2,014,066 Flagg Sept. 10, 1935 2,123,643 Wilson July 12, 1938 2,243,711 Lamb May 27, 1941 2,328,010 Griswold Aug. 31, 1943