Patent US4078702A successfully refreshed from Google Patents.
US4078702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically re-closing a closure difficult for children to open
Assignee: Arkema Inc
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Filing: 1976-10-14
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Granted: 1978-03-14
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Expires: 1996-10-14
Abstract
Abstract This invention relates to automatic closures of the type in which finger pressure applied to a portion of the closure opens an aperture of a container to which the closure is attached thereby permitting dispensing of granular material from the container. Upon release of finger pressure, the closure self-closes, preventing accidental dispensing of material from the container.
Inventors
- 👤 David Warren Neff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:22
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/261; B65D47/265
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
143 words
In a container having a lid with a flat deck portion and a dispensing aperture within said deck, an improved closure comprising: a. flap means for covering said aperture, pivotally connected to said deck and disposed flush therewith for sliding movement thereover about said pivotal connection, moveable between a first position at which said aperture is covered and a second position at which said aperture is exposed. b. means, cantilevered from said deck, for biasing said pellicular means towards said first position; c. gripping means extending from said flap means to facilitate application of finger pressure to move said flap means, against bias exerted by said bias means, from said first position towards said second position; and d. a sight shield over said gripping means, mounted upon said container, spaced from said deck to allow application of finger pressure to said gripping means.
Claim 2
Dependent Claim
143 words
In a container having a lid with a flat deck portion and a dispensing aperture within said deck, an improved closure comprising: a. flap means for covering said aperture, pivotally connected to said deck and disposed flush therewith for sliding movement thereover about said pivotal connection, moveable between a first position at which said aperture is covered and a second position at which said aperture is exposed. b. means, cantilevered from said deck, for biasing said pellicular means towards said first position; c. gripping means extending from said flap means to facilitate application of finger pressure to move said flap means, against bias exerted by said bias means, from said first position towards said second position; and d. a sight shield over said gripping means, mounted upon said container, spaced from said deck to allow application of finger pressure to said gripping means.
Claim 3
Dependent Claim
15 words
The improved closure of claim 1 wherein said sight shield does not cover said aperture.
Claim 4
Dependent Claim
21 words
The improved closure of claim 1 wherein said bias means is stress-free when said flap means is at said first position.
Claim 5
Dependent Claim
51 words
The improved closure of claim 1 wherein said flap means consists of two flaps which mate over said aperture in said first position and which pivot in opposite direction about said bias means, in a scissor-like action, to expose said aperture, in response to finger pressure applied to said gripping means.
Claim 6
Dependent Claim
44 words
The improved closure of claim 1 wherein said flap means consists of a single flap which covers said aperture in said first position and which pivots about said bias means to expose said aperture in response to finger pressure applied to said gripping means.
Claim 7
Dependent Claim
22 words
The improved closure of claim 1 wherein said flap means, said bias means and said gripping means are of unitary plastic construction.
Claim 8
Dependent Claim
16 words
The improved closure of claim 1 wherein said sight shield is mounted to said bias means.
Claim 9
Dependent Claim
25 words
The improved closure of claim 1 wherein said flap means, said bias means, said gripping means and said sight shield are of unitary plastic construction.
Claim 10
Dependent Claim
19 words
The improved closure of claim 1 wherein said sight shield is mounted along a vertical edge of said container.
Claim 11
Dependent Claim
13 words
The improved closure of claim 1 wherein said sight shield is removably mounted.
Claim 12
Dependent Claim
29 words
The improved closure of claim 5 wherein said gripping means consists of a moveable portion extending upward from said flap and a fixed portion extending upward from said lid.
References Cited (Backward Citations)
US65430A
Cited
US1733106A
Cited
US1133134A
Cited
US1145139A
Cited
US1588675A
Cited
US2302972A
Cited
US3140020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |