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US3676024A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for separating lubricant from a refrigerant lubricant mixture in a reciprocating type automotive air conditioner compressor

Assignee: Nissan Motor Co Ltd
•
Filing: 1971-03-02
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Granted: 1972-07-11
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Expires: 1991-03-02
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Abstract

Abstract DISCLOSED HEREIN IS AN APPARATUS FOR SEPARATING LUBRICANT FROM A REFRIGERANT-LUBRICANT MIXTURE CIRCULATING IN A RECIPROCATING TYPE AUTOMOTIVE AIR CONDITIONER. THE APPARATUS INCLUDES A STRAINER MOUNTED WITHIN A FIRST CHAMBER FOR SEPARATING THE LUBRICANT FROM THE MIXTURE, A PAIR OF SPACED PASSAGES FOR THE LUBRICANT AND REFRIGERANT, RESPECTIVELY, AND FOR INTERCONNECTING THE FIRST CHAMBER WITH A SECOND SEPARATING CHAMBER, A PARTITION FOR KEEPING THE SEPARATED OIL ISOLATED FROM THE MIXTURE, A PASSAGE PROVIDED BETWEEN THE SECOND SEPARATING CHAMBER AND A RECESS PROVIDED BY THE PARTITION, AND A LUBRICANT PASSAGE FOR PASSING THE LUBRICANT FROM THE RECESS TO THE OIL RESERVATION OF THE COMPRESSOR.

Inventors

  • 👤 Seiji Akaike
  • 👤 Akira Morinaga

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 16:52
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/16; B; B01; B01D; B01D46/00; F25; F25B; F25B43/00; F25B43/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1975-07-11 1976-01-10 1976-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-11 1980-01-10 1980-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-11 1984-01-10 1984-07-11 $7700.00 Window Closed / Lapsed

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