US3237852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic motor compressor unit
Assignee: Carrier Corp
•
Filing: 1964-07-27
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Granted: 1966-03-01
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 David N Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:17
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/04; F04B39/00; F04B39/12; F04B39/128; F04B41/00; F04B41/06; F25; F25B; F25B2400/00; F25B2400/07; F25B2400/075; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN HERMETIC MOTOR COMPRESSOR APPARATUS HAVING A HOUSING PARTITIONED INTO A FIRST COMPARTMENT WITH COMPRESSION MEANS DISPOSED THEREWITHIN AND A SECOND COMPARTMENT ADAPTED TO COMMUNICATE THE COMPRESSION MEANS SUCTION SIDE WITH A SOURCE OF SUCTON GAS, THE FIRST COMPARTMENT FORMING A RESERVOIR FOR COMPRESSION MEANS LUBRICANT, THE COMBINATION OF MEANS FOR CONTROLLING THE AMOUNT OF LUBRICANT IN SAID FIRST COMPARTMENT RESERVOIR, SAID LUBRICANT CONTROLLING MEANS INCLUDING AN OVERFLOW PASSAGE COMMUNICATING SAID FIRST COMPARTMENT WITH SAID SECOND COMPARTMENT, AND MEANS FOR ESTABLISHING A PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND COMPARTMENTS ADJACENT SAID OVERFLOW PASSAGE TO FORCE EXCESS LUBRICANT THROUGH SAID OVERFLOW PASSAGE INTO SAID SECOND COMPARTMENT.
Claim 2
Dependent Claim
106 words
IN HERMETIC MOTOR COMPRESSOR APPARATUS HAVING A HOUSING PARTITIONED INTO A FIRST COMPARTMENT WITH COMPRESSION MEANS DISPOSED THEREWITHIN AND A SECOND COMPARTMENT ADAPTED TO COMMUNICATE THE COMPRESSION MEANS SUCTION SIDE WITH A SOURCE OF SUCTON GAS, THE FIRST COMPARTMENT FORMING A RESERVOIR FOR COMPRESSION MEANS LUBRICANT, THE COMBINATION OF MEANS FOR CONTROLLING THE AMOUNT OF LUBRICANT IN SAID FIRST COMPARTMENT RESERVOIR, SAID LUBRICANT CONTROLLING MEANS INCLUDING AN OVERFLOW PASSAGE COMMUNICATING SAID FIRST COMPARTMENT WITH SAID SECOND COMPARTMENT, AND MEANS FOR ESTABLISHING A PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND COMPARTMENTS ADJACENT SAID OVERFLOW PASSAGE TO FORCE EXCESS LUBRICANT THROUGH SAID OVERFLOW PASSAGE INTO SAID SECOND COMPARTMENT.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |