Patent US3358705A successfully refreshed from Google Patents.
US3358705A
Expired / Lapsed
US
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Valve assembly
Assignee: Individual
•
Filing: 1964-09-09
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Granted: 1967-12-19
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Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Krechel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:55
CPC Classifications
F; F16; F16K; F16K15/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2582; Y10T137/2584; Y10T137/2605; Y10T137/2617; Y10T137/8593; Y10T137/86928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN UNLOADER VALVE ASSEMBLY FOR COMPRESSORS OR THE LIKE COMPRISING A VALVE BODY HAVING A BORE WITH AN INLET END AND AN OUTLET END, A VALVE SEAT IN THE VALVE BODY, A BLEEDER PORT THROUGH THE BODY FROM THE BORE TO THE OUTER BODY SURFACE, A SLEEVE RECIPROCABLE IN THE BORE FOR OPENING AND CLOSING THE PORT, A VALVE HAVING A PORTION ENGAGEABLE WITH THE VALVE SEAT FOR CLOSING THE BORE, TTHE VALVE BEING SLIDABLE WITH THE BORE AND THE SLEEVE FOR OPENING AND CLOSING THE BORE, THE VALVE WHEN MOVING FROM THE BORE CLOSING TO THE BORE OPENING POSITION INITIALLY HAVING A SLIDING LOST-MOTION CONNECTION WITH THE SLEEVE AND THEN THE VALVES ENGAGING THE SLEEVE FOR MOVING THE SLEEVE AND CLOSING THE BLEEDER PORT, MEANS CARRIED BY THE VALVE AND HAVING A SLIDING LOST-MOTION CONNECTION WITH THE SLEEVE FOR MOVING THE SLEEVE AND OPENING THE BLEEDER PORT AS THE VALVE MOVES TO ITS BORE CLOSING POSITION, AND MEANS DEFINING A PASSAGE BETWEEN THE INLET END OF THE BORE AND THE PORT WHEN THE VALVE IS IN ITS BORE CLOSING POSITION.
Claim 2
Dependent Claim
181 words
AN UNLOADER VALVE ASSEMBLY FOR COMPRESSORS OR THE LIKE COMPRISING A VALVE BODY HAVING A BORE WITH AN INLET END AND AN OUTLET END, A VALVE SEAT IN THE VALVE BODY, A BLEEDER PORT THROUGH THE BODY FROM THE BORE TO THE OUTER BODY SURFACE, A SLEEVE RECIPROCABLE IN THE BORE FOR OPENING AND CLOSING THE PORT, A VALVE HAVING A PORTION ENGAGEABLE WITH THE VALVE SEAT FOR CLOSING THE BORE, TTHE VALVE BEING SLIDABLE WITH THE BORE AND THE SLEEVE FOR OPENING AND CLOSING THE BORE, THE VALVE WHEN MOVING FROM THE BORE CLOSING TO THE BORE OPENING POSITION INITIALLY HAVING A SLIDING LOST-MOTION CONNECTION WITH THE SLEEVE AND THEN THE VALVES ENGAGING THE SLEEVE FOR MOVING THE SLEEVE AND CLOSING THE BLEEDER PORT, MEANS CARRIED BY THE VALVE AND HAVING A SLIDING LOST-MOTION CONNECTION WITH THE SLEEVE FOR MOVING THE SLEEVE AND OPENING THE BLEEDER PORT AS THE VALVE MOVES TO ITS BORE CLOSING POSITION, AND MEANS DEFINING A PASSAGE BETWEEN THE INLET END OF THE BORE AND THE PORT WHEN THE VALVE IS IN ITS BORE CLOSING POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |