US3295752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary vane compressor
Assignee: Worthington Corp
•
Filing: 1966-04-04
•
Granted: 1967-01-03
•
Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Friedrich O Bellmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:25
CPC Classifications
F; F04; F04C; F04C28/00; F04C28/10; F04C28/16; F04C28/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A SLIDING VANE ROTARY COMPRESSOR COMPRISING: (A) A CASING HAVING AN ELONGATED CAVITY FORMED THEREIN, (B) SAID CASING INCLUDING END WALLS ON OPPOSITE ENDS THEREOF, (C) A ROTOR POSITIONED WITHIN THE CAVITY AND ROTABLY MOUNTED IN THE END WALLS, SAID ROTOR HAVING AXIALLY EXTENDING VANES SLIDABLY CARRIED IN THE OUTER SURFACE THEREOF TO ENGAGE THE WALLS OF SAID CAVITY, (D) SAID END WALLS, SAID ROTOR, AND WALLS OF SAID CAVITY FORMING AT LEAST ONE COMPRESSION CHAMBER IN SAID CAVITY, SAID SLIDING VANE EXTENDING RADIALLY OUTWARDLY FROM THE AXIS OF SAID ROTOR TO FORM COMPRESSION POCKETS BETWEEN ADJACENT ROTOR VANES, (E) AN INLET PASSAGE IN SAID CASING HAVING AN OPENING IN SAID COMPRESSION CHAMBER AT THE PORTION OF MAXIMUM VOLUME OF SAID COMPRESSION CHAMBER, AN OUTLET PASSAGE THROUGH SAID CASING HAVING AN OPENING TO SAID COMPRESSION CHAMBER AT THE PORTION OF MINIMUM VOLUME OF SAID COMPRESSION CHAMBER, SAID COMPRESSION CHAMBER DECREASING IN VOLUME FROM THE INLET PASSAGE OPENING TO THE OUTLET PASSAGE OPENING, (F) AT LEAST ONE BYPASS PASSAGEWAY HAVING ITS INLET OPENING BETWEEN SAID INLET AND OUTLET PASSAGE OPEN-
Claim 2
Dependent Claim
179 words
A SLIDING VANE ROTARY COMPRESSOR COMPRISING: (A) A CASING HAVING AN ELONGATED CAVITY FORMED THEREIN, (B) SAID CASING INCLUDING END WALLS ON OPPOSITE ENDS THEREOF, (C) A ROTOR POSITIONED WITHIN THE CAVITY AND ROTABLY MOUNTED IN THE END WALLS, SAID ROTOR HAVING AXIALLY EXTENDING VANES SLIDABLY CARRIED IN THE OUTER SURFACE THEREOF TO ENGAGE THE WALLS OF SAID CAVITY, (D) SAID END WALLS, SAID ROTOR, AND WALLS OF SAID CAVITY FORMING AT LEAST ONE COMPRESSION CHAMBER IN SAID CAVITY, SAID SLIDING VANE EXTENDING RADIALLY OUTWARDLY FROM THE AXIS OF SAID ROTOR TO FORM COMPRESSION POCKETS BETWEEN ADJACENT ROTOR VANES, (E) AN INLET PASSAGE IN SAID CASING HAVING AN OPENING IN SAID COMPRESSION CHAMBER AT THE PORTION OF MAXIMUM VOLUME OF SAID COMPRESSION CHAMBER, AN OUTLET PASSAGE THROUGH SAID CASING HAVING AN OPENING TO SAID COMPRESSION CHAMBER AT THE PORTION OF MINIMUM VOLUME OF SAID COMPRESSION CHAMBER, SAID COMPRESSION CHAMBER DECREASING IN VOLUME FROM THE INLET PASSAGE OPENING TO THE OUTLET PASSAGE OPENING, (F) AT LEAST ONE BYPASS PASSAGEWAY HAVING ITS INLET OPENING BETWEEN SAID INLET AND OUTLET PASSAGE OPEN-
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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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |