Patent US3214088A successfully refreshed from Google Patents.
US3214088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressors
Assignee: Associated Electrical Industries Ltd
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Filing: 1962-09-17
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Granted: 1965-10-26
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Adams Thomas Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:42
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/06; F04D29/063; F04B; F04B39/00; F04B39/16; F04D29/08; F04D29/10; F04D29/102; H; H02; H02P; H02P1/00; H02P1/16; H02P1/46; H02P1/50; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10S277/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A COMPRESSOR INCLUDING: (A) A COMPRESSOR CHAMBER HAVING A BOUNDARY WALL; (B) A ROTATABLE IMPELLER SHAFT PASSING THROUGH AN APERTURE IN THE WALL; (C) COOPERATING MEANS ON THE SHAFT AND THE WALL AT THE APERTURE DEFINING A GLAND ADAPTED TO RESTRICT OIL FLOW ALONG THE SHAFT INTO THE COMPRESSOR CHAMBER; (D) MEANS IN THE WALL ADJACENT THE GLAND FORMING AN OIL COLLECTING CAVITY AROUND THE SHAFT ADAPTED TO COLLECT THE OIL FLOWING ALONG THE SHAFT BEFORE IT REACHES THE GLAND; (E) A DRAIN FOR THE CAVITY; (F) AND MEANS FOR COOLING THE OIL IN THE CAVITY TO INHIBIT THE FORMATION OF OIL VAPOUR IN THE CAVITY, COMPRISING PASSAGES IN THE WALL THAT ARE NOT OPEN TO THE CAVITY AND EXTEND SUBSTANTIALLY AROUND THE CAVITY,
Claim 2
Dependent Claim
124 words
A COMPRESSOR INCLUDING: (A) A COMPRESSOR CHAMBER HAVING A BOUNDARY WALL; (B) A ROTATABLE IMPELLER SHAFT PASSING THROUGH AN APERTURE IN THE WALL; (C) COOPERATING MEANS ON THE SHAFT AND THE WALL AT THE APERTURE DEFINING A GLAND ADAPTED TO RESTRICT OIL FLOW ALONG THE SHAFT INTO THE COMPRESSOR CHAMBER; (D) MEANS IN THE WALL ADJACENT THE GLAND FORMING AN OIL COLLECTING CAVITY AROUND THE SHAFT ADAPTED TO COLLECT THE OIL FLOWING ALONG THE SHAFT BEFORE IT REACHES THE GLAND; (E) A DRAIN FOR THE CAVITY; (F) AND MEANS FOR COOLING THE OIL IN THE CAVITY TO INHIBIT THE FORMATION OF OIL VAPOUR IN THE CAVITY, COMPRISING PASSAGES IN THE WALL THAT ARE NOT OPEN TO THE CAVITY AND EXTEND SUBSTANTIALLY AROUND THE CAVITY,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |