CA1001925A - Hydraulically operated lock valve assembly - Google Patents

Hydraulically operated lock valve assembly

Info

Publication number
CA1001925A
CA1001925A CA196,630A CA196630A CA1001925A CA 1001925 A CA1001925 A CA 1001925A CA 196630 A CA196630 A CA 196630A CA 1001925 A CA1001925 A CA 1001925A
Authority
CA
Canada
Prior art keywords
valve assembly
hydraulically operated
lock valve
operated lock
hydraulically
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
CA196,630A
Other languages
English (en)
Other versions
CA196630S (en
Inventor
Howard L. Johnson
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of CA1001925A publication Critical patent/CA1001925A/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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Mechanically-Actuated Valves (AREA)
CA196,630A 1973-04-30 1974-04-02 Hydraulically operated lock valve assembly Expired CA1001925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00355473A US3857404A (en) 1973-04-30 1973-04-30 Hydraulically operated lock valve assembly

Publications (1)

Publication Number Publication Date
CA1001925A true CA1001925A (en) 1976-12-21

Family

ID=23397543

Family Applications (1)

Application Number Title Priority Date Filing Date
CA196,630A Expired CA1001925A (en) 1973-04-30 1974-04-02 Hydraulically operated lock valve assembly

Country Status (6)

Country Link
US (1) US3857404A (xx)
JP (1) JPS5750987B2 (xx)
BE (1) BE814439A (xx)
BR (1) BR7401841D0 (xx)
CA (1) CA1001925A (xx)
GB (1) GB1399446A (xx)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943968A (en) * 1975-01-06 1976-03-16 Parker-Hannifin Corporation Combination lock and relief valve for hydraulic systems
US4012031A (en) * 1975-03-25 1977-03-15 Affiliated Hospital Products, Inc. Lock valve flow control arrangement
US4103699A (en) * 1976-07-16 1978-08-01 Avon Enterprises, Inc. Fluid cylinder mounted lock out valve device
US4114516A (en) * 1976-10-15 1978-09-19 Caterpillar Tractor Co. Anti-cavitation and pressure modulating relief valve for controlling hydraulic cylinders
US4344287A (en) * 1979-08-23 1982-08-17 Caterpillar Tractor Co. Volume compensation for hydraulic circuits
WO1981000598A1 (en) * 1979-08-30 1981-03-05 Caterpillar Tractor Co Selectively actuatable fluid control system for a work implement
JPS56501057A (xx) * 1979-08-30 1981-07-30
EP0050656B1 (en) * 1980-05-01 1985-06-26 The Boeing Company Integral hydraulic blocking and relief valve
US4461449A (en) * 1980-05-01 1984-07-24 The Boeing Company Integral hydraulic blocking and relief valve
US4667570A (en) * 1984-12-21 1987-05-26 The Boeing Company Integral hydraulic blocking and relief valve
JPH0310622Y2 (xx) * 1985-04-30 1991-03-15
JPH0471801U (xx) * 1990-10-26 1992-06-25
EP0883753B1 (de) * 1996-02-28 2002-04-17 Bucher Hydraulics AG Lasthalte-bremsventil
JP3778634B2 (ja) * 1996-11-22 2006-05-24 Ｓｍｃ株式会社 パイロットチェック弁付スピードコントローラ
DE19829232C1 (de) * 1998-06-30 2000-05-18 Weber Hydraulik Gmbh Vorspann-Rückschlagventil
US6116868A (en) * 1999-03-01 2000-09-12 Lu; Chung-Tai Multi-faceted valve head for hydraulic pump
KR100430398B1 (ko) * 2000-12-26 2004-05-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설기계용 낙하방지장치
ITGE20020064A1 (it) * 2002-07-16 2004-01-16 Ultraflex Spa Pompa oleodinamica per sistemi di guida per imbarcazioni
JP4618179B2 (ja) * 2006-03-28 2011-01-26 トヨタ自動車株式会社 流量調整弁およびベルト式無段変速機
CN114294280B (zh) * 2021-12-26 2024-04-09 浙江海宏液压科技股份有限公司 工作阀片及多路阀

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506008A (en) * 1947-01-17 1950-05-02 Bruno F Arps Hydraulic control valve
US2720755A (en) * 1952-09-04 1955-10-18 Vickers Inc Power transmission
US2691964A (en) * 1953-02-27 1954-10-19 Ford Motor Co Dual action hydraulic control valve
US2959190A (en) * 1957-02-25 1960-11-08 Bendix Corp Control valve having operating position hold
US3145734A (en) * 1961-10-06 1964-08-25 Borg Warner Pressure compensated flow control valve
US3198088A (en) * 1963-08-13 1965-08-03 Caterpillar Tractor Co Fluid motor control system
GB1050181A (xx) * 1964-03-23 1900-01-01
US3563261A (en) * 1968-06-12 1971-02-16 Mcconnel F W Ltd Lockout valve assemblies for hydraulic control systems
US3587399A (en) * 1969-05-02 1971-06-28 Deere & Co Control valve means for a two-way hydraulic cylinder
US3648968A (en) * 1969-08-07 1972-03-14 Hamilton Co Fluid flow control mechanism

Also Published As

Publication number Publication date
BR7401841D0 (pt) 1974-10-29
JPS501275A (xx) 1975-01-08
JPS5750987B2 (xx) 1982-10-29
US3857404A (en) 1974-12-31
GB1399446A (en) 1975-07-02
BE814439A (fr) 1974-10-30

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