FR974281A - Improvements to pistons for small compressors and vacuum pumps - Google Patents

Improvements to pistons for small compressors and vacuum pumps

Info

Publication number
FR974281A
FR974281A FR974281DA FR974281A FR 974281 A FR974281 A FR 974281A FR 974281D A FR974281D A FR 974281DA FR 974281 A FR974281 A FR 974281A
Authority
FR
France
Prior art keywords
pistons
vacuum pumps
small compressors
compressors
small
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Georges Roy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR974281A publication Critical patent/FR974281A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
FR974281D 1948-10-25 1948-10-25 Improvements to pistons for small compressors and vacuum pumps Expired FR974281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR974281T 1948-10-25

Publications (1)

Publication Number Publication Date
FR974281A true FR974281A (en) 1951-02-20

Family

ID=9517403

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974281D Expired FR974281A (en) 1948-10-25 1948-10-25 Improvements to pistons for small compressors and vacuum pumps

Country Status (1)

Country Link
FR (1) FR974281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154480A2 (en) * 1984-02-29 1985-09-11 Halliday, Agnes Elizabeth Improvements in or relating to an air valve for improving the performance of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154480A2 (en) * 1984-02-29 1985-09-11 Halliday, Agnes Elizabeth Improvements in or relating to an air valve for improving the performance of an internal combustion engine
EP0154480A3 (en) * 1984-02-29 1986-11-12 Halliday, Agnes Elizabeth Improvements in or relating to an air valve for improving the performance of an internal combustion engine

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