Patent US3118560A successfully refreshed from Google Patents.
US3118560A
Expired / Lapsed
US
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Self-venting double wall receptacle
Assignee: N F C ENGINEERING Co
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Filing: 1961-10-16
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Granted: 1964-01-21
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Ivadell A Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:07
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0055; A47J41/0072; A47J41/0077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
SELF VENTING DOUBLE WALL STRUCTURE COMPRISING A PAIR OF WALLS DISPOSED IN OPPOSED SPACED APART RELATIONSHIP AND EACH BEING CONSTRUCTED OF A RESILIENT PLASTIC MATERIAL AND BEING JOINED WITH SEALED EFFECT TO DEFINE AN INSULATING GAS CHAMBER THEREBETWEEN, ONE OF SAID WALLS HAVING AN OUTLET THEREIN INTERCONNECTING SAID INSULATING CHAMBER IN COMMUNICATING RELATION WITH THE EXTERIOR, VALVE MEANS ON SAID WALLS NORMALLY CLOSING SAID OUTLET AND BEING MOVABLE BETWEEN OUTLET OPENING AND CLOSED POSITIONS UPON RELATIVE SHIFTING OF SAID WALLS TOWARDS AND AWAY FROM EACH OTHER IN RESPONSE TO CHANGES OF GAS PRESSURE IN SAID INSULATING CHAMBER WHEREBY THE GAS PRESSURE WITHIN THE INSULATING CHAMBER WILL BE AUTOMATICALLY REDUCED TO THEREBY PRECLUDE DEFORMATION OF SAID WALLS.
Claim 2
Dependent Claim
116 words
SELF VENTING DOUBLE WALL STRUCTURE COMPRISING A PAIR OF WALLS DISPOSED IN OPPOSED SPACED APART RELATIONSHIP AND EACH BEING CONSTRUCTED OF A RESILIENT PLASTIC MATERIAL AND BEING JOINED WITH SEALED EFFECT TO DEFINE AN INSULATING GAS CHAMBER THEREBETWEEN, ONE OF SAID WALLS HAVING AN OUTLET THEREIN INTERCONNECTING SAID INSULATING CHAMBER IN COMMUNICATING RELATION WITH THE EXTERIOR, VALVE MEANS ON SAID WALLS NORMALLY CLOSING SAID OUTLET AND BEING MOVABLE BETWEEN OUTLET OPENING AND CLOSED POSITIONS UPON RELATIVE SHIFTING OF SAID WALLS TOWARDS AND AWAY FROM EACH OTHER IN RESPONSE TO CHANGES OF GAS PRESSURE IN SAID INSULATING CHAMBER WHEREBY THE GAS PRESSURE WITHIN THE INSULATING CHAMBER WILL BE AUTOMATICALLY REDUCED TO THEREBY PRECLUDE DEFORMATION OF SAID WALLS.
References Cited (Backward Citations)
US722688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |