Patent US3207172A successfully refreshed from Google Patents.
US3207172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve core
Assignee: Individual
•
Filing: 1965-03-29
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Granted: 1965-09-21
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Donald E Steer
- 👤 Joseph W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:06
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/3786; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
A VALVE CORE ADAPTED FOR INCORPORATION WITHIN A VALVE BODY COMPRISING A UNITARY MOLDRD PLASTIC CYLINDRICCAL BARREL HAVING AN AXIAL BORE EXTENDING THROUGH SAID BARREL AND AN EXTERNAL THREADED PORTION THEREON NEAR A FIRST END OF SAID BARREL ADAPTED FOR THREADED ENGAGEMENT WITH THE INTERIOR THREADS OF SAID VALVE BODY, THE SECOND END OF SAID BARREL ADAPTED BY ITSELF TO PROVIDE A STATIC SEALP WITH RESPECT TO SAID VALVE BODY, SAID FIRST END OF SAID BARREL HAVING A RESTRICTED OPENING OF SAID BORE, OUTWARDLY TAPERED BEARING SURFACE IN SAID BORE AT THE SECOND END OF SAID BARREL, A MOLDED PLASTIC CYLINDRICAL ELONGATED STEM WITH ENLARGED ENDS DISPOSED WITHIN SAID BARREL IN AN AXIAL RELATIONSHIP THEREWITH, SAID STEM HAVING EMERGENT PORTIONS AT BOTH ENDS OF SAID BARREL, SAID STEM SLIDEABLY RECEIVED BY SAID RESTRICTED OPENING, AN INTEGRALLY FORMED COLLAR MEMBER ON SAID STEM ADJACENT SAID SECOND END OF SAID BARREL, A FLANGE RETAINING SLEEVE ON SAID STEM ADJACENT SAID COLLAR MEMBER, SAID SLEEVE BEING RETAINED ON SAID STEM BY THE ADJACENT ENLARGED END OF SAID STEM, A RUBBER WASHER HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID BORE AND BEING HELD ON SAID STEM BETWEEN SAID COLLAR MEMBER AND SAID SLEEVE, SAID WASHER BEING COMPRESSIBLE AGAINST SAID BEARING SURFACE IN SEALING RELATIONSHIP THEREWITH BY MOVEMENT OF SAID STEM AXIALLY OUTWARD FROM SAID FIRST END.
Claim 2
Dependent Claim
224 words
A VALVE CORE ADAPTED FOR INCORPORATION WITHIN A VALVE BODY COMPRISING A UNITARY MOLDRD PLASTIC CYLINDRICCAL BARREL HAVING AN AXIAL BORE EXTENDING THROUGH SAID BARREL AND AN EXTERNAL THREADED PORTION THEREON NEAR A FIRST END OF SAID BARREL ADAPTED FOR THREADED ENGAGEMENT WITH THE INTERIOR THREADS OF SAID VALVE BODY, THE SECOND END OF SAID BARREL ADAPTED BY ITSELF TO PROVIDE A STATIC SEALP WITH RESPECT TO SAID VALVE BODY, SAID FIRST END OF SAID BARREL HAVING A RESTRICTED OPENING OF SAID BORE, OUTWARDLY TAPERED BEARING SURFACE IN SAID BORE AT THE SECOND END OF SAID BARREL, A MOLDED PLASTIC CYLINDRICAL ELONGATED STEM WITH ENLARGED ENDS DISPOSED WITHIN SAID BARREL IN AN AXIAL RELATIONSHIP THEREWITH, SAID STEM HAVING EMERGENT PORTIONS AT BOTH ENDS OF SAID BARREL, SAID STEM SLIDEABLY RECEIVED BY SAID RESTRICTED OPENING, AN INTEGRALLY FORMED COLLAR MEMBER ON SAID STEM ADJACENT SAID SECOND END OF SAID BARREL, A FLANGE RETAINING SLEEVE ON SAID STEM ADJACENT SAID COLLAR MEMBER, SAID SLEEVE BEING RETAINED ON SAID STEM BY THE ADJACENT ENLARGED END OF SAID STEM, A RUBBER WASHER HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID BORE AND BEING HELD ON SAID STEM BETWEEN SAID COLLAR MEMBER AND SAID SLEEVE, SAID WASHER BEING COMPRESSIBLE AGAINST SAID BEARING SURFACE IN SEALING RELATIONSHIP THEREWITH BY MOVEMENT OF SAID STEM AXIALLY OUTWARD FROM SAID FIRST END.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |