US3192735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling coil for hermetic motor using system refrigerant
Assignee: MERCANTILE TEXAS CREDIT Corp
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Filing: 1961-09-12
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Granted: 1965-07-06
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Expires: 1981-09-12
Abstract
No abstract record available.
Inventors
- 👤 Richard L Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:16
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/19; H02K9/20; F; F25; F25B; F25B31/00; F25B31/006; F25B31/008; F25B2400/00; F25B2400/13
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
IN A REFRIGERATION SYSTEM INCLUDING A MOTOR-DRIVE COMPRESSOR, A CONDENSER AND AN EVAPORATOR COUPLED IN OPERABLE RELATION, AND HAVING A HIGH PRESSURE COMPRESSORCONDENSER SIDE AND A LOW PRESSURE EVAPORATOR SIDE, THE IMPROVEMENT WHEREIN THE MOTOR HAS A ROTOR AND STATOR SEPARATED BY AN ANNULAR GAP, A JACKET STRUCTURE COMPRISING A COIL-LIKE SHAPE SURROUNDING AT LEAST A PORTION OF THE STATOR AND IN INTIMATE HEAT-EXCHANGE RELATION THERETO, MEANS INCLUDING A CONDUIT FOR INTRODUCING LIQUID REFRIGERANT INTO SAID JACKET FROM THE HIGH PRESSURE COMPRESSORCONDENSER SIDE, SAID CONDUIT INCLUDING AN ORIFICE RESTRICTOR MECHANISM, AND MEANS INCLUDING A CONDUIT FOR RETURNING REFRIGERANT FROM THE JACKET TO THE LOW PRESSURE EVAPORATOR
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |