US3229901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant compressor
Assignee: Lennox Industries Inc
•
Filing: 1964-04-20
•
Granted: 1966-01-18
•
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
2026-10-27 23:46
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN A RECIPROCATING COMPRESSOR, THE COMBINATION OF AN OUTER CASING, AN ANNULAR SLEEVE WITHIN AND SPACED FROM SAID OUTER CASING FOR FORMING AN ANNULR SPACE THEREBETWEEN, A COMPRESSOR BLOCK CARRIED IN SAID ANNULAR SLEEVE AND DEFINING A CRANKCASE THEREIN, A VERTICALLY EXTENDING CRANKSHAFT JOURNALED IN SAID BLOCK, SAID BLOCK DEFINING AT LEAST ONE CYLINDER AND DEFINING A RESERVOIR THEREON ABOVE SAID CYLINDER, A PISTON RECIPROCATINGLY DISPOSED IN SAID CYLINDER, MEANS OPERATIVELY CONNECTING SAID PISTON TO SAID CRANKSHAFT, AND ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID BY THE BLOCK AND ANNULAR SLEEVE BEING PARTIALLY SUBMERGED IN LUBRICANT IN THE SUMP FORMED IN THE LOWER PORTION OF THE OUTER CASING, AND LONGITUDINALLY EXTENDING PASSAGE MEANS IN SAID CRANKSHAFT OFFSET FROM THE AXIS OF ROTATION FOR PUMPING LUBRICANT FROM THE SUMP INTO SAID RESERVOIR ON SAID BLOCK DURING OPERATION, THEREBY REDUCING THE LEVEL OF LUBRICANT IN THE CRANKCASE BELOW THE CONNECTING MEANS AND PISTON TO INCREASE THE OPERATING EFFICIENCY OF THE COMPRESSOR AND REDUCE THE ELECTRICAL INPUT TO THE ELECTRIC DRIVE MOTOR.
Claim 2
Dependent Claim
175 words
IN A RECIPROCATING COMPRESSOR, THE COMBINATION OF AN OUTER CASING, AN ANNULAR SLEEVE WITHIN AND SPACED FROM SAID OUTER CASING FOR FORMING AN ANNULR SPACE THEREBETWEEN, A COMPRESSOR BLOCK CARRIED IN SAID ANNULAR SLEEVE AND DEFINING A CRANKCASE THEREIN, A VERTICALLY EXTENDING CRANKSHAFT JOURNALED IN SAID BLOCK, SAID BLOCK DEFINING AT LEAST ONE CYLINDER AND DEFINING A RESERVOIR THEREON ABOVE SAID CYLINDER, A PISTON RECIPROCATINGLY DISPOSED IN SAID CYLINDER, MEANS OPERATIVELY CONNECTING SAID PISTON TO SAID CRANKSHAFT, AND ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID BY THE BLOCK AND ANNULAR SLEEVE BEING PARTIALLY SUBMERGED IN LUBRICANT IN THE SUMP FORMED IN THE LOWER PORTION OF THE OUTER CASING, AND LONGITUDINALLY EXTENDING PASSAGE MEANS IN SAID CRANKSHAFT OFFSET FROM THE AXIS OF ROTATION FOR PUMPING LUBRICANT FROM THE SUMP INTO SAID RESERVOIR ON SAID BLOCK DURING OPERATION, THEREBY REDUCING THE LEVEL OF LUBRICANT IN THE CRANKCASE BELOW THE CONNECTING MEANS AND PISTON TO INCREASE THE OPERATING EFFICIENCY OF THE COMPRESSOR AND REDUCE THE ELECTRICAL INPUT TO THE ELECTRIC DRIVE MOTOR.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |