US3150650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area diffuser for compressor
Assignee: Caterpillar Inc
•
Filing: 1961-09-29
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Granted: 1964-09-29
•
Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Glen E Dreesen
- 👤 Lawton P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:51
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/141; F01D17/143; F02; F02B; F02B33/00; F02B37/00; F02B37/12; F02B37/24; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/462; F04D29/464; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F05; F05D; F05D2250/00; F05D2250/50; F05D2250/52; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN A TURBOCOMPRESSOR HAVING A COMPRESSOR WHEEL CO-AXIALLY DISPOSED WITHIN STRUCTURE FORMING AN AIR INLET THE COMBINATION COMPRISING A STATIONARY DIFFUSER DISC, AN ADJUSTABLE DIFFUSER DISC DEFINING A DIFFUSER PASSAGE WITH SAID STATIONARY DISC THROUGH WHICH AIR DRAWN BY SAID COMPRESSOR WHEEL PASSES, AND MEANS OPERABLE TO AXIALLY POSITION SAID ADJUSTABLE DISC.
Claim 2
Dependent Claim
52 words
IN A TURBOCOMPRESSOR HAVING A COMPRESSOR WHEEL CO-AXIALLY DISPOSED WITHIN STRUCTURE FORMING AN AIR INLET THE COMBINATION COMPRISING A STATIONARY DIFFUSER DISC, AN ADJUSTABLE DIFFUSER DISC DEFINING A DIFFUSER PASSAGE WITH SAID STATIONARY DISC THROUGH WHICH AIR DRAWN BY SAID COMPRESSOR WHEEL PASSES, AND MEANS OPERABLE TO AXIALLY POSITION SAID ADJUSTABLE DISC.
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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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |