Patent US3334808A successfully refreshed from Google Patents.
US3334808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor lubrication arrangement
Assignee: Lennox Industries Inc
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Filing: 1965-10-24
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Granted: 1967-08-08
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Sidney A Parker
- 👤 Richard E Cawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:05
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/023; F25B31/002; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A RECIPROCATING COMPRESSOR COMPRISING AN OUTER CASING, COMPRESSION MEANS INCLUDING A COMPRESSOR BLOCK DEFINING A CRANKCASE THEREIN AND AN ANNULAR SLEEVE ABOUT SAID BLOCK, A VERTICALLY EXTENDING CRANDSHAFT JOURNALED IN SAID BLOCK, SAID BLOCK DEFINING CYLINDER MEANS, A PISTON RECIPROCATINGLY DISPOSED IN EACH CYLINDER MEANS, MEANS OPERATIVELY CONNECTING EACH SAID PISTON TO SAID CRANGSHAFT, AN ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, SAID BLOCK AND ANNULAR SLEEVE BEING PARTIALLY SUBMERGED IN LUBRICANT IN THE SUMP FORMED IN THE LOWER PORTION OF THE OUTER CASING, AND PUMP MEANS IN THE CRANDSHAFT FOR LUBRICATING THE CRANKSHAFT BEARING SURFACES AND THE CONNECTING MEANS BEARING SURFACES, LUBRICANT BEING DISPOSED IN THE CRANKCASE WHEN THE COMPRESSOR IS IDLE, THE IMPROVEMENT COMPRISING FAN MEANS ON SAID CRANKSHAFT FOR PRESSURIZING THE CRANKCASE DURING OPERATION TO RETURN LUBRICANT FROM THE CRANKCASE TO THE SUMP SO AS TO REDUCE THE LEVEL OF LUBRICANT IN THE CRANKCASE BELOW THE CONNECTING MEANS AND
Claim 2
Dependent Claim
160 words
IN A RECIPROCATING COMPRESSOR COMPRISING AN OUTER CASING, COMPRESSION MEANS INCLUDING A COMPRESSOR BLOCK DEFINING A CRANKCASE THEREIN AND AN ANNULAR SLEEVE ABOUT SAID BLOCK, A VERTICALLY EXTENDING CRANDSHAFT JOURNALED IN SAID BLOCK, SAID BLOCK DEFINING CYLINDER MEANS, A PISTON RECIPROCATINGLY DISPOSED IN EACH CYLINDER MEANS, MEANS OPERATIVELY CONNECTING EACH SAID PISTON TO SAID CRANGSHAFT, AN ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, SAID BLOCK AND ANNULAR SLEEVE BEING PARTIALLY SUBMERGED IN LUBRICANT IN THE SUMP FORMED IN THE LOWER PORTION OF THE OUTER CASING, AND PUMP MEANS IN THE CRANDSHAFT FOR LUBRICATING THE CRANKSHAFT BEARING SURFACES AND THE CONNECTING MEANS BEARING SURFACES, LUBRICANT BEING DISPOSED IN THE CRANKCASE WHEN THE COMPRESSOR IS IDLE, THE IMPROVEMENT COMPRISING FAN MEANS ON SAID CRANKSHAFT FOR PRESSURIZING THE CRANKCASE DURING OPERATION TO RETURN LUBRICANT FROM THE CRANKCASE TO THE SUMP SO AS TO REDUCE THE LEVEL OF LUBRICANT IN THE CRANKCASE BELOW THE CONNECTING MEANS AND
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |