Patent US3305953A successfully refreshed from Google Patents.
Patent US3693831A successfully refreshed from Google Patents.
US3693831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for open-mouth vessels
Assignee: ATK Launch Systems LLC
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Filing: 1970-07-30
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Granted: 1972-09-26
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Expires: 1990-07-30
Abstract
Abstract A closure for the opening in open-mouth vessels such as bottles, jars, rocket motor nozzles, casks and the like which includes a plug member and an inflatable ring located near the inner end of the plug. The plug is slid in place in the usual manner and the ring is then inflated to both hold the plug in place in a positive manner and to provide a very effective seal where the ring bears upon the vessel.
Inventors
- 👤 Denny M West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:22
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/978; B; B65; B65D; B65D39/00; B65D39/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A closure plug for an open-mouthed vessel having a zone of lesser inside diameter than the oveRall inside diameter of the mouth, said plug comprising a body of revolution having a large end and a small end with the small end adapted to just pass through the open mouth of the vessel without friction, a pressure expandable ring near the small end of the plug and encircling it and so located longitudinally of the plug as to bear upon the inner face of the open mouth just inside of its zone of lesser diameter, a dessicant contained in a chamber in the plug and exposed to the interior of the vessel and accessible from the exterior of the vessel with the plug in place therein, and means for expanding said ring, whereby the ring expands against the said inner face of the vessel mouth and against the plug and creates an annular seal therebetween.
Claim 2
Dependent Claim
154 words
A closure plug for an open-mouthed vessel having a zone of lesser inside diameter than the oveRall inside diameter of the mouth, said plug comprising a body of revolution having a large end and a small end with the small end adapted to just pass through the open mouth of the vessel without friction, a pressure expandable ring near the small end of the plug and encircling it and so located longitudinally of the plug as to bear upon the inner face of the open mouth just inside of its zone of lesser diameter, a dessicant contained in a chamber in the plug and exposed to the interior of the vessel and accessible from the exterior of the vessel with the plug in place therein, and means for expanding said ring, whereby the ring expands against the said inner face of the vessel mouth and against the plug and creates an annular seal therebetween.
Claim 3
Dependent Claim
28 words
The invention set forth in claim 1 with the means for expanding the ring including a pressurized fluid supply, and means connecting the fluid supply to the ring.
Claim 4
Dependent Claim
32 words
The invention set forth in claim 2 with the last-named means including a fluid check valve and fluid supply attachment means, and a communicating conduit between the fluid valve and the ring.
Claim 5
Dependent Claim
40 words
The invention set forth in claim 2 with the pressurized fluid supply comprising a pressurized air supply, an air check valve adapted for optional attachment thereto and detachment therefrom and a communicating conduit between the air valve and the ring.
Claim 6
Dependent Claim
142 words
A closure plug for the nozzle of a rocket motor said nozzle having a restricted zone extending peripherally about its inner face, said plug comprising a body of revolution having a truncated conical end and a cylindrical end with the cylindrical end adapted to just pass through the nozzle without friction, a pressure expanding ring encircling the cylindrical end and so located longitudinally of the plug as to bear upon the nozzle interior just inside of its minimum diameter of its restricted zone, a dessicant contained in a chamber in the plug and exposed to the interior of the vessel and accessible from the exterior of the vessel with the plug in place therein, and means for expanding said ring, whereby the ring expands against the said inner wall of the vessel and against the plug and creates an annular seal therebetween.
Claim 7
Dependent Claim
142 words
A closure plug for the nozzle of a rocket motor said nozzle having a restricted zone extending peripherally about its inner face, said plug comprising a body of revolution having a truncated conical end and a cylindrical end with the cylindrical end adapted to just pass through the nozzle without friction, a pressure expanding ring encircling the cylindrical end and so located longitudinally of the plug as to bear upon the nozzle interior just inside of its minimum diameter of its restricted zone, a dessicant contained in a chamber in the plug and exposed to the interior of the vessel and accessible from the exterior of the vessel with the plug in place therein, and means for expanding said ring, whereby the ring expands against the said inner wall of the vessel and against the plug and creates an annular seal therebetween.
References Cited (Backward Citations)
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US2559564A
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US2697534A
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |