US3360193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative compressors with integral mufflers
Assignee: Rotron Manufacturing Co Inc
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Filing: 1965-12-29
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Granted: 1967-12-26
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Expires: 1985-12-29
Abstract
No abstract record available.
Inventors
- 👤 Dwight E Harris
- 👤 Zoehfeld Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:17
CPC Classifications
F; F04; F04D; F04D23/00; F04D23/008; F04D29/00; F04D29/66; F04D29/661; F04D29/663; F04D29/664
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN A REGENERATIVE FLUID COMPRESSOR OF THE TYPE HAVING A ROTARY IMPELLER AND AN INTEGRAL MOTOR COAXIAL WITH THE IMPELLER, THE COMBINATION OF A HOUSING MEMBER HAVING A COMPRESSOR CHAMBER AND A SECOND CHAMBER SURROUNDING THE MOTOR, THE HOUSING PROVIDING INLET AND OUTLET PORTS BETWEEN THE COMPRESSOR AND SECOND CHAMBERS, AND SOUND ABSORBENT MEANS IN SAID SECOND CHAMBER TO ATTENUATE SOUND GENERATED BY VARIATIONS IN THE PRESSURE OF THE FLUID PASSING THERETHROUGH.
Claim 2
Dependent Claim
72 words
IN A REGENERATIVE FLUID COMPRESSOR OF THE TYPE HAVING A ROTARY IMPELLER AND AN INTEGRAL MOTOR COAXIAL WITH THE IMPELLER, THE COMBINATION OF A HOUSING MEMBER HAVING A COMPRESSOR CHAMBER AND A SECOND CHAMBER SURROUNDING THE MOTOR, THE HOUSING PROVIDING INLET AND OUTLET PORTS BETWEEN THE COMPRESSOR AND SECOND CHAMBERS, AND SOUND ABSORBENT MEANS IN SAID SECOND CHAMBER TO ATTENUATE SOUND GENERATED BY VARIATIONS IN THE PRESSURE OF THE FLUID PASSING THERETHROUGH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |