Patent US3250461A successfully refreshed from Google Patents.
US3250461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic compressor assembly
Assignee: Lennox Industries Inc
•
Filing: 1964-09-08
•
Granted: 1966-05-10
•
Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Sidney A Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:53
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0027; F04B39/0055; F04B39/0044; F04B39/12; F04B39/127; F25; F25B; F25B31/00; F25B31/02; F25B31/023; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A RECIPROCATING COMPRESSOR, THE COMBINATION OF AN OUTER CASING, AN ANNULAR SLEEVE WITHIN AND SPACED FROM SAID OUTER CASING FOR FORMING AN ANNULAR 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, A PISTON RECIPROCATINGLY DISPOSED IN SAID CYLINDER, MEANS OPERATIVELY CONNECTING SAID PISTON TO SAID CRANKSHAFT, AN ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, MEANS DEFINING A FIRST ANNULAR FLANGE FORMED ON SAID SLEEVE, AN ANNULAR MOUNTING RING SECURED TO SAID OUTER CASING AND HAVING A SECOND ANNULAR FLANGE THEREON EXTENDING TOWARD THE ANNULAR SLEEVE AND BEING SPACED THEREFROM TO FORM A NARROW ANNULAR OPENING, SAID FIRST ANNULAR FLANGE BEING SPACED FROM SAID MOUNTING RING TO DEFINE A SECOND NARROW ANNULAR OPENING, RESILIENT SPRING MEANS MOUNTED
Claim 2
Dependent Claim
146 words
IN A RECIPROCATING COMPRESSOR, THE COMBINATION OF AN OUTER CASING, AN ANNULAR SLEEVE WITHIN AND SPACED FROM SAID OUTER CASING FOR FORMING AN ANNULAR 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, A PISTON RECIPROCATINGLY DISPOSED IN SAID CYLINDER, MEANS OPERATIVELY CONNECTING SAID PISTON TO SAID CRANKSHAFT, AN ELECTRIC DRIVE MOTOR CARRIED BY THE BLOCK AND BEING OPERATIVELY CONNECTED TO SAID CRANKSHAFT, MEANS DEFINING A FIRST ANNULAR FLANGE FORMED ON SAID SLEEVE, AN ANNULAR MOUNTING RING SECURED TO SAID OUTER CASING AND HAVING A SECOND ANNULAR FLANGE THEREON EXTENDING TOWARD THE ANNULAR SLEEVE AND BEING SPACED THEREFROM TO FORM A NARROW ANNULAR OPENING, SAID FIRST ANNULAR FLANGE BEING SPACED FROM SAID MOUNTING RING TO DEFINE A SECOND NARROW ANNULAR OPENING, RESILIENT SPRING MEANS MOUNTED
References Cited (Backward Citations)
US2435108A
Cited
US3073515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |