Patent US3837535A successfully refreshed from Google Patents.
US3837535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic dispensing nozzle with reclosable closure cap
Assignee: FORMOLD A DIVISION OF VCA CORP
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Filing: 1973-02-09
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Granted: 1974-09-24
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Expires: 1993-02-09
Abstract
Abstract A plastic dispensing nozzle provided with a flexible diaphragm which has a pouring spout and with a cap for closing the pouring spout, which cap and nozzle have interengaging means so that the cap cannot be removed from its closure position unless pressure is applied to the top central portion of the cap which causes the skirt of the cap to expand and disengage from its locked closure position on the nozzle.
Inventors
- 👤 R Gerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:53
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D47/00; B65D47/04; B65D47/06; B65D47/12; B65D47/14; B65D2255/00; B65D2255/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
207 words
A nozzle and closure cap for use with a container for dispensing material from said container, said nozzle having means for attachment to a container, said nozzle having an end wall extending across said nozzle, said end wall having a central diaphragm portion and an outer peripheral portion with the central portion having greater elasticity than the outer peripheral portion, said central diaphragm portion of said end wall having a discharge spout formed integrally therewith and extending upwardly thereof, said cap having a skirt with saId skirt and nozzle having mating surfaces to interlock said cap with said nozzle so that the cap closes said spout opening, lever means between the underside of said cap and the top end wall of the nozzle and positioned inwardly of the skirt of said cap so that a downward pressure applied against said cap produces a lever action and causes the skirt of the cap to expand and become disengaged from the nozzle, said cap when pressure is applied centrally thereto simultaneously applying a downward pressure against the spout and the end wall of the nozzle to permit said lever action operation, said end wall and spout returning to normal position after said cap has become disengaged from said spout.
Claim 2
Dependent Claim
207 words
A nozzle and closure cap for use with a container for dispensing material from said container, said nozzle having means for attachment to a container, said nozzle having an end wall extending across said nozzle, said end wall having a central diaphragm portion and an outer peripheral portion with the central portion having greater elasticity than the outer peripheral portion, said central diaphragm portion of said end wall having a discharge spout formed integrally therewith and extending upwardly thereof, said cap having a skirt with saId skirt and nozzle having mating surfaces to interlock said cap with said nozzle so that the cap closes said spout opening, lever means between the underside of said cap and the top end wall of the nozzle and positioned inwardly of the skirt of said cap so that a downward pressure applied against said cap produces a lever action and causes the skirt of the cap to expand and become disengaged from the nozzle, said cap when pressure is applied centrally thereto simultaneously applying a downward pressure against the spout and the end wall of the nozzle to permit said lever action operation, said end wall and spout returning to normal position after said cap has become disengaged from said spout.
Claim 3
Dependent Claim
87 words
A structure as set forth in claim 1 in which the central diaphragm portion is of a reduced thickness from that of the adjacent outer peripheral portion of the end wall and in which the discharge spout is positioned centrally of the diaghragm portion, and in which the lever means includes inwardly extending projections on the underside of the cap which engage the outer peripheral portion of the end wall so that the projections fulcrum on the outer peripheral portion to expand the skirt of the cap.
Claim 4
Dependent Claim
30 words
A structure as set forth in claim 2 in which the outer peripheral portion of the end wall has an inwardly extending ring which engages the mouth of the container.
Claim 5
Dependent Claim
44 words
A structure as set forth in claim 1 in which the top wall of the cap is dome-shaped and in which said top wall has a central sealing member which surrounds the tip of the discharge spout to close and seal the spout opening.
Claim 6
Dependent Claim
47 words
A structure as set forth in claim 1 in which the cap is provided with outwardly extending lugs so that containers may be stacked one upon the other and wherein the bottom of the superposed container is free from engagement with the central portion of the cap.
Claim 7
Dependent Claim
74 words
A structure as set forth in claim 2 in which the nozzle has an outer peripheral edge and in which the outer peripheral portion of the end wall has an annular peripheral rim spaced inwardly of the outer peripheral edge and defining an annular recess therebetween, and in which the bottom of the skirt of the cap has an inwardly extending lip positionable in said annular recess and mating with the annular peripheral rim.
Claim 8
Dependent Claim
44 words
A structure as set forth in claim 6 in which the inwardly extending lip on the bottom of the skirt of the cap has a bottom upwardly extending wall defining a sharp inner annular edge which engages the annular peripheral rim of the nozzle.
Claim 9
Dependent Claim
29 words
A structure as set forth in claim 6 in which the cap has sealing means which surrounds the tip of the discharge spout and seals the spout discharge opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |