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US3276673A Expired / Lapsed US ⏱️ 0.0 years remaining

Contaminant free compressor

Assignee: Fairchild Hiller Corp
•
Filing: 1963-05-10
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Granted: 1966-10-04
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Expires: 1983-05-10
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Abstract

No abstract record available.

Inventors

  • 👤 Jones John Roger
  • 👤 Maciej J Makowski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 11:04
CPC Classifications
F; F04; F04B; F04B45/00; F04B45/04; F04B45/043; F04B45/053; F04B45/0533; F04B5/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 202 words
A DUPLEX COMPRESSOR SYSTEM FOR OPERATION WITH FIRST AND SECOND WORKING FLUID SOURCES COMPRISING FIRST AND SECOND INDEPENDENT CLOSED FLUID LOOPS, A PAIR OF FIRST COMPRESSOR ELEMENTS, A PAIR OF SECOND COMPRESSOR ELEMENTS, EACH OF SAID COMPRESSOR ELEMENTS BEING FORMED BY A HOUSING HAVING A CAVITY WHICH IS DIVIDED INTO TWO CHAMBERS BY A RESILIENT DIAPHRAGM MEMBER, SAID FIRST COMPRESSOR ELEMENTS PROVIDING LOW COMPRESSION RELATIVE TO SAID SECOND COMPRESSOR ELEMENTS, ONE CHAMBER OF ONE OF SAID FIRST AND SECOND COMPRESSORS FORMING A PORTION OF ONE OF SAID CLOSED LOOPS AND ONE CHAMBER OF THE OTHER OF SAID FIRST AND SECOND COMPRESSORS FORMING A PORTION OF THE OTHER OF SAID CLOSED LOOPS, MEANS FOR SUPPLYING ACTUATING FLUID TO THE OTHER CHAMBER OF EACH SAID ELEMENT, AND MEANS FOR PUMPING SAID ACTUATING FLUID TO ALTERNATELY DEPRESS SIMULTANEOUSLY THE DIAPHRAGM MEMBERS OF SAID FIRST ELEMENT IN SAID FIRST LOOP AND SAID SECOND ELEMENT IN SAID SECOND LOOP AND THEN DEPRESS SIMULTANEOUSLY THE DIAPHRAGM MEMBERS OF SAID SECOND ELEMENT IN SAID FIRST LOOP AND SAID FIRST ELEMENT IN SAID SECOND LOOP, THEREBY COMPRESSING THE WORKING FLUID THEREIN, THE ACTUATING FLUID AND THE WORKING FLUID IN EACH CAVITY BEING SEPARATED FROM EACH OTHER BY SAID RESILIENT DIAPHRAGM.
Claim 2
Dependent Claim 202 words
A DUPLEX COMPRESSOR SYSTEM FOR OPERATION WITH FIRST AND SECOND WORKING FLUID SOURCES COMPRISING FIRST AND SECOND INDEPENDENT CLOSED FLUID LOOPS, A PAIR OF FIRST COMPRESSOR ELEMENTS, A PAIR OF SECOND COMPRESSOR ELEMENTS, EACH OF SAID COMPRESSOR ELEMENTS BEING FORMED BY A HOUSING HAVING A CAVITY WHICH IS DIVIDED INTO TWO CHAMBERS BY A RESILIENT DIAPHRAGM MEMBER, SAID FIRST COMPRESSOR ELEMENTS PROVIDING LOW COMPRESSION RELATIVE TO SAID SECOND COMPRESSOR ELEMENTS, ONE CHAMBER OF ONE OF SAID FIRST AND SECOND COMPRESSORS FORMING A PORTION OF ONE OF SAID CLOSED LOOPS AND ONE CHAMBER OF THE OTHER OF SAID FIRST AND SECOND COMPRESSORS FORMING A PORTION OF THE OTHER OF SAID CLOSED LOOPS, MEANS FOR SUPPLYING ACTUATING FLUID TO THE OTHER CHAMBER OF EACH SAID ELEMENT, AND MEANS FOR PUMPING SAID ACTUATING FLUID TO ALTERNATELY DEPRESS SIMULTANEOUSLY THE DIAPHRAGM MEMBERS OF SAID FIRST ELEMENT IN SAID FIRST LOOP AND SAID SECOND ELEMENT IN SAID SECOND LOOP AND THEN DEPRESS SIMULTANEOUSLY THE DIAPHRAGM MEMBERS OF SAID SECOND ELEMENT IN SAID FIRST LOOP AND SAID FIRST ELEMENT IN SAID SECOND LOOP, THEREBY COMPRESSING THE WORKING FLUID THEREIN, THE ACTUATING FLUID AND THE WORKING FLUID IN EACH CAVITY BEING SEPARATED FROM EACH OTHER BY SAID RESILIENT DIAPHRAGM.

References Cited (Backward Citations)

CA449979A Cited
US2092717A Cited
FR864365A Cited
US2593255A Cited
US2752854A Cited
US2919650A Cited
FR1188239A Cited
FR1188148A Cited
US2970747A Cited
US2982466A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-10-03 1970-04-04 1970-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-10-03 1974-04-04 1974-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-10-03 1978-04-04 1978-10-04 $7700.00 Window Closed / Lapsed

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