US3305166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal compressor
Assignee: Motors Liquidation Co
•
Filing: 1965-02-18
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Granted: 1967-02-21
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 William S Castle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:02
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/284; F04D29/285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A CENTRIFUGAL COMPRESSOR COMPRISING AN ANNULAR SHROUD, AN IMPELLER ROTATABLY MOUNTED IN SAID SHROUD, SAID IMPELLER COMPRISING A HUB, A PLURALITY OF CIRCUMFERENTIALLY SPACED BLADES INDIVIDUALLY MOUNTED ON SAID HUB AND EXTENDING RADIALLY THEREFROM, A PAIR OF RADIALLY ARCUATE WEBS EXTENDING CIRCUMFERENTIALLY IN OPPOSITE DIRECTIONS FROM EACH BLADE AND EXTENDING RADIALLY FROM THE LEADING EDGE OF SAID BLADE ADJACENT SAID HUB TO THE TRAILING EDGE OF SAID BLADE ADJACENT ITS TIP, SAID WEBS ABUTTING WEBS EXTENDING FROM ADJACENT BLADES TO FORM WALLS BETWEEN SAID BLADE AND SAID ADJACENT BLADES, AN INDUCER ROTATABLY MOUNTED IN SAID SHROUD COAXIALLY WITH SAID IMPELLER, SAID INDUCER COMPRISING A DISC WITH RADIALLY EXTENDING BLADES,
Claim 2
Dependent Claim
109 words
A CENTRIFUGAL COMPRESSOR COMPRISING AN ANNULAR SHROUD, AN IMPELLER ROTATABLY MOUNTED IN SAID SHROUD, SAID IMPELLER COMPRISING A HUB, A PLURALITY OF CIRCUMFERENTIALLY SPACED BLADES INDIVIDUALLY MOUNTED ON SAID HUB AND EXTENDING RADIALLY THEREFROM, A PAIR OF RADIALLY ARCUATE WEBS EXTENDING CIRCUMFERENTIALLY IN OPPOSITE DIRECTIONS FROM EACH BLADE AND EXTENDING RADIALLY FROM THE LEADING EDGE OF SAID BLADE ADJACENT SAID HUB TO THE TRAILING EDGE OF SAID BLADE ADJACENT ITS TIP, SAID WEBS ABUTTING WEBS EXTENDING FROM ADJACENT BLADES TO FORM WALLS BETWEEN SAID BLADE AND SAID ADJACENT BLADES, AN INDUCER ROTATABLY MOUNTED IN SAID SHROUD COAXIALLY WITH SAID IMPELLER, SAID INDUCER COMPRISING A DISC WITH RADIALLY EXTENDING BLADES,
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |