US3844443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy-open container and method of making same
Assignee: Reynolds Metals Co
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Filing: 1973-03-19
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Granted: 1974-10-29
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Expires: 1993-03-19
Abstract
Abstract An easy-open container and method of making same is provided wherein such container has a container body which has a top right circular cylindrical portion which has a plurality of angularly spaced apart thread segments. A quick-release cap is provided and has a cooperating plurality of angularly spaced apart thread segments in perfect threaded engagement with the thread segments of the top portion and an axially compressed resilient sealing means is provided between the cap and the cylindrical portion.
Inventors
- 👤 D Cudzik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:30
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/0442
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
114 words
An easy-open container comprising, a container body having a top right circular cylindrical portion, a plurality of angularly spaced apart thread segments on said top portion, a cap having a cooperating plurality of angularly spaced apart thread segments in threaded engagement with said thread segments of said top portion, each of said thread segments of said cylindrical portion being surrounded above and below by parts of said cap defining an associated thread segment of said cap so that said thread segments of said cylindrical portion and said cap are in substantially perfect threaded engagement throughout due to having been made simultaneously, and axially compressed resilient sealing means between said container cap and cylindrical portion.
Claim 2
Dependent Claim
114 words
An easy-open container comprising, a container body having a top right circular cylindrical portion, a plurality of angularly spaced apart thread segments on said top portion, a cap having a cooperating plurality of angularly spaced apart thread segments in threaded engagement with said thread segments of said top portion, each of said thread segments of said cylindrical portion being surrounded above and below by parts of said cap defining an associated thread segment of said cap so that said thread segments of said cylindrical portion and said cap are in substantially perfect threaded engagement throughout due to having been made simultaneously, and axially compressed resilient sealing means between said container cap and cylindrical portion.
Claim 3
Dependent Claim
21 words
A container as set forth in claim 1 in which said cap and top portion are made of a metallic material.
Claim 4
Dependent Claim
37 words
A container as set forth in claim 1 in which said thread segments are helical thread segments and said sealing means is bonded to said cap and enables resealing of said cap upon removal and reinstallation thereof.
Claim 5
Dependent Claim
29 words
A container as set forth in claim 3 in which said top portion has an inwardly turned bead-like flange and said sealing means is urged against said bead-like flange.
Claim 6
Dependent Claim
16 words
A container as set forth in claim 3 in which said sealing means is a plastisol.
Claim 7
Dependent Claim
48 words
A container as set forth in claim 3 in which said plurality of angularly spaced apart thread segments consist of a plurality of six thread segments and each thread segment extends through an angle of 30* and each end thereof is spaced 30* from an adjacent thread segment.
Claim 8
Dependent Claim
68 words
A container as set forth in claim 3 in which said cap has a plurality of angularly spaced apart bulged portions therein corresponding in number to said plurality of thread segments of said top portion, said bulged portions being adapted to be rotated in alignment over thread segments projecting outwardly from said right circular cylindrical portion to enable removal of said cap from said right circular cylindrical portion.
Claim 9
Dependent Claim
51 words
A container as set forth in claim 3 in which said container body comprises a cylindrical main portion and a frustoconical transition portion extending between said main portion and said top right circular cylindrical portion with said portions being made as a single unit and having a substantially uniform thickness throughout.
Claim 10
Dependent Claim
34 words
A container as set forth in claim 8 and further comprising a bottom wall fixed to the bottom edge portion of said main portion with said bottom wall having a substantially uniform thickness throughout.
Claim 11
Dependent Claim
31 words
A container as set forth in claim 9 in which said container body, cap and bottom wall are made of a metallic material containing aluminum and have a substantially uniform thickness.
Claim 12
Dependent Claim
36 words
A container as set forth in claim 10 in which said bottom wall is attached to said main body portion by a mechanically swaged circumferential bead arranged within the peripheral outline of said main body portion.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |