GB2090941B - Hydraulic jack wiht expanding piston - Google Patents

Hydraulic jack wiht expanding piston

Info

Publication number
GB2090941B
GB2090941B GB8138741A GB8138741A GB2090941B GB 2090941 B GB2090941 B GB 2090941B GB 8138741 A GB8138741 A GB 8138741A GB 8138741 A GB8138741 A GB 8138741A GB 2090941 B GB2090941 B GB 2090941B
Authority
GB
United Kingdom
Prior art keywords
wiht
hydraulic jack
expanding piston
expanding
piston
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
GB8138741A
Other versions
GB2090941A (en
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.)
ELSPAN INT
Elspan International Ltd
Original Assignee
ELSPAN INT
Elspan International Ltd
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
Priority claimed from AU78679/81A external-priority patent/AU553403B2/en
Application filed by ELSPAN INT, Elspan International Ltd filed Critical ELSPAN INT
Publication of GB2090941A publication Critical patent/GB2090941A/en
Application granted granted Critical
Publication of GB2090941B publication Critical patent/GB2090941B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16J15/00—Sealings
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
    • 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
    • B66F3/26—Adaptations or arrangements of pistons
    • 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
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)
GB8138741A 1980-12-24 1981-12-23 Hydraulic jack wiht expanding piston Expired GB2090941B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU78679/81A AU553403B2 (en) 1980-12-24 1980-12-24 Hydraulic jack
AU706580 1980-12-24

Publications (2)

Publication Number Publication Date
GB2090941A GB2090941A (en) 1982-07-21
GB2090941B true GB2090941B (en) 1984-06-06

Family

ID=25612130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8138741A Expired GB2090941B (en) 1980-12-24 1981-12-23 Hydraulic jack wiht expanding piston

Country Status (1)

Country Link
GB (1) GB2090941B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245681B (en) * 1990-06-28 1994-01-19 Pilgrim Moorside Ltd Improvements in and relating to fasteners

Also Published As

Publication number Publication date
GB2090941A (en) 1982-07-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981223