US3253776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor lubrication arrangement
Assignee: Lennox Industries Inc
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Filing: 1964-04-20
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Granted: 1966-05-31
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Sidney A Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A REFRIGARENT COMPRESSOR, THE COMBINATION OF OUTER CASING MEANS, MEANS DEFINING A CRANKCASE IN SAID OTHER CASING MEANS, CYLINDER MEANS IN SAID CRANKCASE, PISTON MEANS MOVABLE IN SAID CYLINDER MEANS, A VERTICALLY EXTENDING CRANKSHAFT IN SAID CRANKCASE, MEANS OPERATIVELY CONNECTING SAID PISTON MEANS TO SAID CRANKSHAFT, THE LOWER PORTION OF THE CASING MEANS DEFINING A LUBRICANT SUMP, A SUPPLY OF LUBRICANT IN SAID SUMP, SAID CRANKSHAFT EXTENDING INTO SAID SUMP, SAID CRANKSHAFT BEING JOURNALLED IN UPPER BEING MEANS IN SAID CRANKCASE, AND PUMP MEANS IN SAID CRANKSHAFT FOR LUBRICATING THE CONNECTING MEANS AND THE UPPER BEARING MEANS, SAID PUMP MEANS COMPRISING A FIRST PUMP FOR LUBRICATING THE UPPER BEARING MEANS, A SECOND PUMP FOR LUBRICATING THE CONNECTING MEANS AND A THIRD PUMP FOR LUBRICATING THE CONNECTING MEANS, SAID SECOND PUMP BEING A HIGH-PRESSURE PUMP AND SAID THIRD PUMP BEING A LOW-PRESSURE PUMP.
Claim 2
Dependent Claim
143 words
IN A REFRIGARENT COMPRESSOR, THE COMBINATION OF OUTER CASING MEANS, MEANS DEFINING A CRANKCASE IN SAID OTHER CASING MEANS, CYLINDER MEANS IN SAID CRANKCASE, PISTON MEANS MOVABLE IN SAID CYLINDER MEANS, A VERTICALLY EXTENDING CRANKSHAFT IN SAID CRANKCASE, MEANS OPERATIVELY CONNECTING SAID PISTON MEANS TO SAID CRANKSHAFT, THE LOWER PORTION OF THE CASING MEANS DEFINING A LUBRICANT SUMP, A SUPPLY OF LUBRICANT IN SAID SUMP, SAID CRANKSHAFT EXTENDING INTO SAID SUMP, SAID CRANKSHAFT BEING JOURNALLED IN UPPER BEING MEANS IN SAID CRANKCASE, AND PUMP MEANS IN SAID CRANKSHAFT FOR LUBRICATING THE CONNECTING MEANS AND THE UPPER BEARING MEANS, SAID PUMP MEANS COMPRISING A FIRST PUMP FOR LUBRICATING THE UPPER BEARING MEANS, A SECOND PUMP FOR LUBRICATING THE CONNECTING MEANS AND A THIRD PUMP FOR LUBRICATING THE CONNECTING MEANS, SAID SECOND PUMP BEING A HIGH-PRESSURE PUMP AND SAID THIRD PUMP BEING A LOW-PRESSURE PUMP.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |