US3241748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic motor compressor unit
Assignee: Carrier Corp
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Filing: 1964-07-27
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Granted: 1966-03-22
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Clayton B Cramer
- 👤 David N Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:44
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/005; F04B39/00; F04B39/10; F04B39/1073; F04B39/12; F04B39/128; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F25; F25B; F25B31/00; F25B31/02; F25B31/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7898
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A COMPRESSOR, THE COMBINATION OF A VALVE PLATE HAVING AT LEAST ONE SLOT-LIKE PASSAGE THERETHROUGH, SAID PLATE INCLUDING A FIRST PART CURVED TO DELINEATE A GENERALLY CONVEX FIRST WALL OF SAID PASSAGE, AND A SECOND PART CURVED TO DELINEATE AN OPPOSING SECOND WALL OF SAID PASSAGE HAVING ALTERNATE CONVEX AND CONCAVE WALL SEGMENTS, THE NUMBER OF CONCAVE WALL SEGMENTS BEING ONE GREATER THAN THE NUMBER OF CONVEX WALL SEGMENTS, SAID SECOND WALL CONCAVE AND CONVEX WALL SEGMENTS COOPERATING WITH SAID FIRST WALL TO DEFINE ALTERNATE ENLARGED AND REDUCED PASSAGE WIDTHS THROUGHOUT THE LENGTH OF SAID SLOT-LIKE PASSAGE.
Claim 2
Dependent Claim
98 words
IN A COMPRESSOR, THE COMBINATION OF A VALVE PLATE HAVING AT LEAST ONE SLOT-LIKE PASSAGE THERETHROUGH, SAID PLATE INCLUDING A FIRST PART CURVED TO DELINEATE A GENERALLY CONVEX FIRST WALL OF SAID PASSAGE, AND A SECOND PART CURVED TO DELINEATE AN OPPOSING SECOND WALL OF SAID PASSAGE HAVING ALTERNATE CONVEX AND CONCAVE WALL SEGMENTS, THE NUMBER OF CONCAVE WALL SEGMENTS BEING ONE GREATER THAN THE NUMBER OF CONVEX WALL SEGMENTS, SAID SECOND WALL CONCAVE AND CONVEX WALL SEGMENTS COOPERATING WITH SAID FIRST WALL TO DEFINE ALTERNATE ENLARGED AND REDUCED PASSAGE WIDTHS THROUGHOUT THE LENGTH OF SAID SLOT-LIKE PASSAGE.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |