US3295748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for the continuous adjustment of the output of a piston compressor
Assignee: Burckhardt Compression AG
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Filing: 1965-07-16
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Granted: 1967-01-03
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Leitgeb Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; F04B49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN COMBINATION WITH A FLUID COMPRESSOR INCLUDING AT LEAST ONE CYLINDER, A PISTON RECIPROCABLE THEREIN, AND AT LEAST ONE AUXILIARY PRESSURE-ADJUSTING CHAMBER, THE COMBINATION OF TWO PASSAGES CONNECTING SAID CYLINDER WITH THE ASSOCIATED AUXILIARY CHAMBER, AN ADJUSTABLE THROTTLING MEMBER IN ONE OF SAID PASSAGES THROUGH WHICH A FRACTION OF THE FLUID COMPRESSED BY THE PISTON IN THE COMPRESSOR CYLINDER IS DIVERTED INTO THE AUXILIARY CHAMBER, MEANS ADJUSTING THE AREA OF THE PASSAGEWAY PROVIDED BY THE THROTTLING MEMBER AND A SUCTION VALVE IN THE OTHER PASSAGE ALLOWING THE PASSAGE OF FLUID FROM THE AUXILIARY CHAMBER INTO THE COMPRESSOR CYLINDER DURING THE SUCTION STROKE OF THE PISTON IN THE COMPRESSOR CYLINDER.
Claim 2
Dependent Claim
109 words
IN COMBINATION WITH A FLUID COMPRESSOR INCLUDING AT LEAST ONE CYLINDER, A PISTON RECIPROCABLE THEREIN, AND AT LEAST ONE AUXILIARY PRESSURE-ADJUSTING CHAMBER, THE COMBINATION OF TWO PASSAGES CONNECTING SAID CYLINDER WITH THE ASSOCIATED AUXILIARY CHAMBER, AN ADJUSTABLE THROTTLING MEMBER IN ONE OF SAID PASSAGES THROUGH WHICH A FRACTION OF THE FLUID COMPRESSED BY THE PISTON IN THE COMPRESSOR CYLINDER IS DIVERTED INTO THE AUXILIARY CHAMBER, MEANS ADJUSTING THE AREA OF THE PASSAGEWAY PROVIDED BY THE THROTTLING MEMBER AND A SUCTION VALVE IN THE OTHER PASSAGE ALLOWING THE PASSAGE OF FLUID FROM THE AUXILIARY CHAMBER INTO THE COMPRESSOR CYLINDER DURING THE SUCTION STROKE OF THE PISTON IN THE COMPRESSOR CYLINDER.
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) | 1970-01-02 | 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 |