US3171589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic motor compressor unit
Assignee: Carrier Corp
•
Filing: 1963-03-08
•
Granted: 1965-03-02
•
Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Clayton B Cramer
- 👤 David N Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:07
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/023; Y; Y10; Y10S; Y10S417/00; Y10S417/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN HERMETIC MOTOR COMPRESSOR APPARATUS, THE COMBINATION OF: (A) A CRANKCASE COMPARTMENT, (B) A MOTOR COMPARTMENT, (C) SHAFT MEANS EXTENDING BETWEEN SAID CRANKCASE AND MOTOR COMPARTMENTS, SAID SHAFT MEANS OPERABLY CONNECTING A MOTOR TO A COMPRESSOR, (D) MEANS FOR PASSING SUCTION GAS THROUGH SAID MOTOR COMPARTMENT TO SAID COMPRESSOR INCLUDING PASSAGE MEANS IN SAID MOTOR, (E) MEANS ADAPTED TO PROVIDE A PATH FOR LUBRICANT FLOW FROM SAID MOTOR COMPARTMENT TO SAID CRANKCASE COMPARTMENT WHEN PRESSURE IN SAID CRANKCASE COMPARTMENT IS LESS THAN PRESSURE IN SAID MOTOR COMPARTMENT, AND (F) MEANS ADAPTED TO REDUCE CRANKCASE PRESSURE INCLUDING BLEED MEANS COMMUNICATING SAID CRANKCASE COMPARTMENT WITH SAID PASSAGBE MEANS, AND MEANS FOR REDUCING THE PRESSURE OF SUCTION GAS FLOWING THROUGH SAID PASSAGE MEANS ADJACENT SAID BLEED MEANS COMMUNICATING WITH SAID PASSAGE MEANS.
Claim 2
Dependent Claim
129 words
IN HERMETIC MOTOR COMPRESSOR APPARATUS, THE COMBINATION OF: (A) A CRANKCASE COMPARTMENT, (B) A MOTOR COMPARTMENT, (C) SHAFT MEANS EXTENDING BETWEEN SAID CRANKCASE AND MOTOR COMPARTMENTS, SAID SHAFT MEANS OPERABLY CONNECTING A MOTOR TO A COMPRESSOR, (D) MEANS FOR PASSING SUCTION GAS THROUGH SAID MOTOR COMPARTMENT TO SAID COMPRESSOR INCLUDING PASSAGE MEANS IN SAID MOTOR, (E) MEANS ADAPTED TO PROVIDE A PATH FOR LUBRICANT FLOW FROM SAID MOTOR COMPARTMENT TO SAID CRANKCASE COMPARTMENT WHEN PRESSURE IN SAID CRANKCASE COMPARTMENT IS LESS THAN PRESSURE IN SAID MOTOR COMPARTMENT, AND (F) MEANS ADAPTED TO REDUCE CRANKCASE PRESSURE INCLUDING BLEED MEANS COMMUNICATING SAID CRANKCASE COMPARTMENT WITH SAID PASSAGBE MEANS, AND MEANS FOR REDUCING THE PRESSURE OF SUCTION GAS FLOWING THROUGH SAID PASSAGE MEANS ADJACENT SAID BLEED MEANS COMMUNICATING WITH SAID PASSAGE MEANS.
References Cited (Backward Citations)
US2926840A
Cited
US2963218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |