GB1289558A - - Google Patents

Info

Publication number
GB1289558A
GB1289558A GB1289558DA GB1289558A GB 1289558 A GB1289558 A GB 1289558A GB 1289558D A GB1289558D A GB 1289558DA GB 1289558 A GB1289558 A GB 1289558A
Authority
GB
United Kingdom
Prior art keywords
division
shovel
sheppard
booms
pistons
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
English (en)
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
Publication of GB1289558A publication Critical patent/GB1289558A/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
    • F16J15/56—Other sealings for reciprocating rods

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)
GB1289558D 1970-01-14 1970-01-14 Expired GB1289558A (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB188370 1970-01-14

Publications (1)

Publication Number Publication Date
GB1289558A true GB1289558A (it) 1972-09-20

Family

ID=9729737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289558D Expired GB1289558A (it) 1970-01-14 1970-01-14

Country Status (1)

Country Link
GB (1) GB1289558A (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196049A5 (it) * 1972-08-07 1974-03-08 Skega Ab
US4059280A (en) * 1975-07-02 1977-11-22 Hall & Hall Limited Seal ring assembly
US4167262A (en) * 1976-10-12 1979-09-11 Hunt Valve Co., Inc. Pilot actuated valve
DE2911156A1 (de) * 1979-03-22 1980-09-25 Merkel Kg Martin Doppeltwirkende dichtungsanordnung
GB2145192A (en) * 1983-08-15 1985-03-20 Baker Oil Tools Inc Dynamic seal for well tools

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2196049A5 (it) * 1972-08-07 1974-03-08 Skega Ab
US4059280A (en) * 1975-07-02 1977-11-22 Hall & Hall Limited Seal ring assembly
US4167262A (en) * 1976-10-12 1979-09-11 Hunt Valve Co., Inc. Pilot actuated valve
DE2911156A1 (de) * 1979-03-22 1980-09-25 Merkel Kg Martin Doppeltwirkende dichtungsanordnung
GB2145192A (en) * 1983-08-15 1985-03-20 Baker Oil Tools Inc Dynamic seal for well tools

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees