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US3784051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: Individual
•
Filing: 1971-02-09
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Granted: 1974-01-08
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Expires: 1991-02-09
Abstract
Abstract The invention relates to containers for the preservation of materials which evaporate, deteriorate or oxidise when exposed to air. Preservation is achieved by a closure member sealingly movable in the container in contact with the contents and exclude air from the surface of the contents.
Inventors
- 👤 J Shaw
- 👤 E Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:59
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; B65D81/245; B65D25/00; B65D25/02; B65D25/04; B65D25/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
232 words
A container and closure therefor comprising a body part, said body part forming a material holding reservoir closed at one end, open at the other end and bounded peripherally by a wall to provide the reservoir with a substantially uniform cross-section throughout its length, said closure including a piston, peripheral sealing means on said piston engaging said reservoir wall in sealing relationship thereto, said sealing means including a resilient lip extending angularly downwardly and outwardly towards the closed end of said reservoir, the outer dimensions of said lip being, when in an uncompressed state, slightly greater than the internal dimensions of said container, said closure having an air bleed hole therethrough and provided with means for closing said hole, said reservoir wall having a pair of diametrically opposed holes therethrough adjacent the upper limit thereof, a handle having a pair of ends detachably secured within said wall holes for carrying said reservoir, said closure including an upstanding peripheral rim provided with diametrically opposed slots alignable with said wall holes to permit attachment of said handle ends without interference from said closure rim, said closure rim provided with a pair of diametrically opposed holes angularly offset substantially 90* from said closure rim slots and engageable with said handle ends when detached from said wall holes to facilitate upward and downward movement of said closure within the container without angular displacement of said closure.
Claim 2
Dependent Claim
232 words
A container and closure therefor comprising a body part, said body part forming a material holding reservoir closed at one end, open at the other end and bounded peripherally by a wall to provide the reservoir with a substantially uniform cross-section throughout its length, said closure including a piston, peripheral sealing means on said piston engaging said reservoir wall in sealing relationship thereto, said sealing means including a resilient lip extending angularly downwardly and outwardly towards the closed end of said reservoir, the outer dimensions of said lip being, when in an uncompressed state, slightly greater than the internal dimensions of said container, said closure having an air bleed hole therethrough and provided with means for closing said hole, said reservoir wall having a pair of diametrically opposed holes therethrough adjacent the upper limit thereof, a handle having a pair of ends detachably secured within said wall holes for carrying said reservoir, said closure including an upstanding peripheral rim provided with diametrically opposed slots alignable with said wall holes to permit attachment of said handle ends without interference from said closure rim, said closure rim provided with a pair of diametrically opposed holes angularly offset substantially 90* from said closure rim slots and engageable with said handle ends when detached from said wall holes to facilitate upward and downward movement of said closure within the container without angular displacement of said closure.
Claim 3
Dependent Claim
21 words
A container and closure according to claim 1 wherein the means for closing the air bleed hole comprises a captive plug.
Claim 4
Dependent Claim
43 words
A container and closure according to claim 1 wherein the means for closing the air bleed hole comprises a tube insertable into said air bleed hole, said tube including a supporting flange adjacent one end and a closure cap at its other end.
Claim 5
Dependent Claim
13 words
The container cLaimed in claim 1 wherein said reservoir is cylindrical in cross-section.
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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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |