GB1338282A - Electric switch assemblies for fluid motors - Google Patents

Electric switch assemblies for fluid motors

Info

Publication number
GB1338282A
GB1338282A GB5112171A GB5112171A GB1338282A GB 1338282 A GB1338282 A GB 1338282A GB 5112171 A GB5112171 A GB 5112171A GB 5112171 A GB5112171 A GB 5112171A GB 1338282 A GB1338282 A GB 1338282A
Authority
GB
United Kingdom
Prior art keywords
ball
head
fluid
electric switch
switch
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
GB5112171A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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 by Parker Hannifin Corp filed Critical Parker Hannifin Corp
Publication of GB1338282A publication Critical patent/GB1338282A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/08—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)

Abstract

1338282 Reciprocating fluid motors PARKER-HANNIFIN CORP 3 Nov 1971 [4 Dec 1970] 51121/71 Heading F1A [Also in Division H1] In an electric switch assembly 21 for use on the end of a fluid motor 1, to control a solenoid operated reversing valve (4) Fig. 1 (not shown) a chamfered plunger 11 on the end of the piston 8 actuates a micro-switch 5 through a ball 18 engaging the enlarged head 25 of an actuating rod 27. A leakage passage 29 is provided in a collar 17 supporting the ball 18, and the bore 15 for the head 25 has a large clearance whereby the ball 18 and head 25 move freely in the surrounding fluid. The return spring 26 is required only to be stiff enough to provide the restoring force against high fluid pressure acting over the area of the small diameter actuating rod 27 which may have an enlarged plastic cap 30 for engagement with the actuator 23 of the switch 5.
GB5112171A 1970-12-04 1971-11-03 Electric switch assemblies for fluid motors Expired GB1338282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9531170A 1970-12-04 1970-12-04

Publications (1)

Publication Number Publication Date
GB1338282A true GB1338282A (en) 1973-11-21

Family

ID=22251319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5112171A Expired GB1338282A (en) 1970-12-04 1971-11-03 Electric switch assemblies for fluid motors

Country Status (5)

Country Link
US (1) US3661053A (en)
AU (1) AU459065B2 (en)
CA (1) CA935719A (en)
DE (1) DE2159926C2 (en)
GB (1) GB1338282A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52154976A (en) * 1976-06-18 1977-12-23 Teijin Seiki Co Ltd Actuator
US4158120A (en) * 1978-02-13 1979-06-12 Pawlowski Eugene J Electric and air signal element
JPS5648942U (en) * 1979-09-21 1981-04-30
US4413549A (en) * 1981-06-18 1983-11-08 Parker-Hannifin Corporation Limit switch actuator for fluid cylinders
US4632018A (en) * 1983-06-02 1986-12-30 Lymburner Robert K Fluid cylinder position sensor mounting apparatus
US4982652A (en) * 1989-05-19 1991-01-08 Blatt John A Fluid operated actuator with recessed position sensor and recessed end cap fastener
US6502880B1 (en) * 2000-03-08 2003-01-07 Btm Corporation Pin part locator
FR2808067B1 (en) * 2000-04-21 2002-06-14 Bio Merieux DEVICE FOR OPERATING AT LEAST ONE PISTON AND ITS DETECTION METHOD IN A DEVICE
US9091285B2 (en) * 2009-11-23 2015-07-28 Numatics, Incorporated Piston and cylinder assembly with an indicator pin device
JP6076735B2 (en) 2012-12-28 2017-02-08 株式会社コスメック Cylinder device
JP6092710B2 (en) * 2013-01-22 2017-03-08 株式会社コスメック Cylinder device
JP6410342B2 (en) * 2014-06-04 2018-10-24 パスカルエンジニアリング株式会社 Fluid pressure cylinder and clamping device
JP6552310B2 (en) * 2015-06-26 2019-07-31 株式会社コスメック Cylinder device
JP6616997B2 (en) * 2015-09-25 2019-12-04 株式会社コスメック Cylinder device
EP3419037B1 (en) * 2017-06-22 2020-10-21 HYDRAULIQUE PB (Société Anonyme) Detection device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628873A (en) * 1947-03-07 1949-09-06 Trico Folberth Ltd Improvements relating to fluid motors
US2691962A (en) * 1950-01-09 1954-10-19 Rockwell Mfg Co Electrical control circuit for hydropneumatic power mechanisms
US2949098A (en) * 1956-03-21 1960-08-16 Flick Reedy Corp Actuator for service in piston and cylinder devices
US2960077A (en) * 1959-04-22 1960-11-15 Hydro Line Mfg Co Fluid pressure actuating mechanism
US3530896A (en) * 1968-04-25 1970-09-29 Whiteman Marvin E Hydraulic power actuator and pilot valve unit assembly
US3968285A (en) * 1971-03-15 1976-07-06 General Latex And Chemical Corporation One-part foamable latex composition

Also Published As

Publication number Publication date
DE2159926C2 (en) 1984-08-02
US3661053A (en) 1972-05-09
DE2159926A1 (en) 1972-06-29
CA935719A (en) 1973-10-23
AU459065B2 (en) 1975-02-26
AU3578871A (en) 1973-05-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years