Patent US3243159A successfully refreshed from Google Patents.
US3243159A
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Guide vane mechanism for centrifugal fluid-flow machines
Assignee: Ingersoll Rand Co
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Filing: 1964-04-27
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Granted: 1966-03-29
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Hefler
- 👤 Paul R Hefler
- 👤 William C Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:19
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/462; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/165; F05; F05D; F05D2250/00; F05D2250/50; F05D2250/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A GUIDE VANE MECHANISM FOR A CENTRIFUGAL FLUID-FLOW MACHINE HAVING AN IMPELLER AND A PLURLITY OF WALLS DEFINING A FLUID-FLOW PASSAGE COMMUNICATION WITH THE IMPELLER, COMPRISING (A) A PLURALITY OF GUIDE VANES DISPOSED IN THE FLUID FLOW PASSAGE, (B) A PLURALITY OF SPACED SLOTS CORRESPONDING IN NUMBER TO THE NUMBER OF GUIDE VANES IN ONE OF SAID WALLS DEFINING SAID FLUID-FLOW PASSAGE, (C) EACH OF SAID GUIDE VANES HAVING AN ACTUATING PIN PROJECTING THROUGH ONE OF SAID SLOTS, (D) A DRIVE RING SUPPORTED FOR ROTATIVE MOVEMENT ADJACENT SAID ONE OF SAID WALLS DEFINING SAID FLUID-FLOW PASSAGE, (E) SAID DRIVE RING HAVING A PLURALITY OF SPACED CAMMING SLOTS,
Claim 2
Dependent Claim
107 words
A GUIDE VANE MECHANISM FOR A CENTRIFUGAL FLUID-FLOW MACHINE HAVING AN IMPELLER AND A PLURLITY OF WALLS DEFINING A FLUID-FLOW PASSAGE COMMUNICATION WITH THE IMPELLER, COMPRISING (A) A PLURALITY OF GUIDE VANES DISPOSED IN THE FLUID FLOW PASSAGE, (B) A PLURALITY OF SPACED SLOTS CORRESPONDING IN NUMBER TO THE NUMBER OF GUIDE VANES IN ONE OF SAID WALLS DEFINING SAID FLUID-FLOW PASSAGE, (C) EACH OF SAID GUIDE VANES HAVING AN ACTUATING PIN PROJECTING THROUGH ONE OF SAID SLOTS, (D) A DRIVE RING SUPPORTED FOR ROTATIVE MOVEMENT ADJACENT SAID ONE OF SAID WALLS DEFINING SAID FLUID-FLOW PASSAGE, (E) SAID DRIVE RING HAVING A PLURALITY OF SPACED CAMMING SLOTS,
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |