CA939328A - Combination seal and one-way valve in a two speed hydraulic jack - Google Patents

Combination seal and one-way valve in a two speed hydraulic jack

Info

Publication number
CA939328A
CA939328A CA081,677A CA81677A CA939328A CA 939328 A CA939328 A CA 939328A CA 81677 A CA81677 A CA 81677A CA 939328 A CA939328 A CA 939328A
Authority
CA
Canada
Prior art keywords
way valve
hydraulic jack
speed hydraulic
combination seal
seal
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
CA081,677A
Other versions
CA81677S (en
Inventor
John M. Barosko
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.)
Tenneco Inc
Original Assignee
Tenneco Inc
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 Tenneco Inc filed Critical Tenneco Inc
Application granted granted Critical
Publication of CA939328A publication Critical patent/CA939328A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
CA081,677A 1969-05-09 1970-05-01 Combination seal and one-way valve in a two speed hydraulic jack Expired CA939328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82328469A 1969-05-09 1969-05-09

Publications (1)

Publication Number Publication Date
CA939328A true CA939328A (en) 1974-01-01

Family

ID=25238311

Family Applications (1)

Application Number Title Priority Date Filing Date
CA081,677A Expired CA939328A (en) 1969-05-09 1970-05-01 Combination seal and one-way valve in a two speed hydraulic jack

Country Status (2)

Country Link
US (1) US3581499A (en)
CA (1) CA939328A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244192A (en) * 1978-12-11 1981-01-13 Helix Technology Corporation Refrigeration system and reciprocating compressor therefor with pressure stabilizing seal
GB9007590D0 (en) * 1990-04-04 1990-05-30 Fssl Ltd Radial seal fluid couplers
GB9021249D0 (en) * 1990-09-29 1990-11-14 Fssl Ltd Fluid coupling
US5755099A (en) * 1996-11-01 1998-05-26 Mvp (H.K.) Industries Ltd. Hydraulic circuit system for one-touch jack and its structure
CN1094890C (en) * 1998-08-13 2002-11-27 洪茂雄 Dual-speed hydraulic lifting mechanism for jack
US6035635A (en) * 1998-09-03 2000-03-14 Hung; Michael Hydraulic quick lifting unit of a jack
CA2284430C (en) * 1999-10-01 2003-07-08 Mvp (H.K.) Industries Limited Oil circuit of a jack for rising object to preset position rapidly
US6530219B1 (en) * 2001-11-05 2003-03-11 Kuo-Chung Yeh Jack assembly that may be lifted rapidly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420929A (en) * 1942-05-25 1947-05-20 Lea Fabrics Inc Chevron packing ring
US2913269A (en) * 1956-06-18 1959-11-17 Boeing Co High pressure high temperature metal seals
US3134232A (en) * 1961-10-02 1964-05-26 Walker Mfg Co Jack

Also Published As

Publication number Publication date
US3581499A (en) 1971-06-01

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