Patent US3281560A successfully refreshed from Google Patents.
US3281560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosion-proof connectors for explosive-gas environments
Assignee: BRAND-REX WILLIMATIC CT
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Filing: 1963-07-16
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Granted: 1966-10-25
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Nava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:32
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/53; H01R13/52; H01R13/527
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
THE NEW USE OF SUBLIMABLE ENERGY SINK MADE OF SYNTHETIC RESINOUS MATERIAL SURROUNDING AND CONFINING THE POINT OF SEPARATION OF A CURRENT CONTINUING MEANS IN AN EXPLOSION PROOF ELECTRICAL CONNECTOR HAVING SEPARABLE PIN AND SOCKET CONTACTS FROMING A CONFINED CHAMBER FOR ANY ARC DRAWN THEREBETWEEN, WHICH COMPRISES, OPERATING THE CONNECTOR IN A HAZARDOUS HYDROGEN ATMOSPHERE SUCH THAT EXPLOSIVE GAS IS PRESENT IN SAID CONFINED CHAMBER, IGNITING THE ATMOSPHERE INSIDE OF SAID CONFINED CHAMBER WITH AN ARC DRAWN UPON SEPARATION OR ENGAGEMENT OF THE CONTACTS, UTILIZING THE FLAMING HYDROGEN TO SET OFF THE ENERGY SINK, THEREBY (1) CONTAMINATING THE ATMOSPHERE IN THE CONNECTOR WITH EFFLUENT GENERATED BY THE SUBLIMATION OF THE SYNTHETIC RESINOUS MATERIAL OF THE ENERGY SINK TO RENDER THE ATMOSPHER INSIDE OF SAID CONNECTOR LESS HAZARDOUS AND (2) COOLING THE FLAMING HYDROGEN BY TRANSFER OF THERMAL ENERGY FROM THE FLAMMING HYDROGEN TO THE ENERGY SINK, AND CONFINING THE INITIAL FLAMING OF THE HYDROGEN INWARDLY OF THE ENERGY SINK INSIDE OF SAID CONFINED CHAMBER TO INSURE CHEMICAL AND STRUCTURAL TRANSFORMATION OF SAID SYNTHETIC RESINOUS MATERIAL SUFFICIENT TO CONTAMINATE THE ATMOSPHERE INSIDE OF SAID CONNECTOR WITH SAID EFFLUENT FOR THE PURPOSES SET FORTH.
Claim 2
Dependent Claim
192 words
THE NEW USE OF SUBLIMABLE ENERGY SINK MADE OF SYNTHETIC RESINOUS MATERIAL SURROUNDING AND CONFINING THE POINT OF SEPARATION OF A CURRENT CONTINUING MEANS IN AN EXPLOSION PROOF ELECTRICAL CONNECTOR HAVING SEPARABLE PIN AND SOCKET CONTACTS FROMING A CONFINED CHAMBER FOR ANY ARC DRAWN THEREBETWEEN, WHICH COMPRISES, OPERATING THE CONNECTOR IN A HAZARDOUS HYDROGEN ATMOSPHERE SUCH THAT EXPLOSIVE GAS IS PRESENT IN SAID CONFINED CHAMBER, IGNITING THE ATMOSPHERE INSIDE OF SAID CONFINED CHAMBER WITH AN ARC DRAWN UPON SEPARATION OR ENGAGEMENT OF THE CONTACTS, UTILIZING THE FLAMING HYDROGEN TO SET OFF THE ENERGY SINK, THEREBY (1) CONTAMINATING THE ATMOSPHERE IN THE CONNECTOR WITH EFFLUENT GENERATED BY THE SUBLIMATION OF THE SYNTHETIC RESINOUS MATERIAL OF THE ENERGY SINK TO RENDER THE ATMOSPHER INSIDE OF SAID CONNECTOR LESS HAZARDOUS AND (2) COOLING THE FLAMING HYDROGEN BY TRANSFER OF THERMAL ENERGY FROM THE FLAMMING HYDROGEN TO THE ENERGY SINK, AND CONFINING THE INITIAL FLAMING OF THE HYDROGEN INWARDLY OF THE ENERGY SINK INSIDE OF SAID CONFINED CHAMBER TO INSURE CHEMICAL AND STRUCTURAL TRANSFORMATION OF SAID SYNTHETIC RESINOUS MATERIAL SUFFICIENT TO CONTAMINATE THE ATMOSPHERE INSIDE OF SAID CONNECTOR WITH SAID EFFLUENT FOR THE PURPOSES SET FORTH.
References Cited (Backward Citations)
DE213611C
Cited
US2223975A
Cited
US2407937A
Cited
US2626974A
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US2894918A
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US3002072A
Cited
US3065439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |