GB1360446A - Hydraulic device with back pressure isolation - Google Patents

Hydraulic device with back pressure isolation

Info

Publication number
GB1360446A
GB1360446A GB5110171A GB5110171A GB1360446A GB 1360446 A GB1360446 A GB 1360446A GB 5110171 A GB5110171 A GB 5110171A GB 5110171 A GB5110171 A GB 5110171A GB 1360446 A GB1360446 A GB 1360446A
Authority
GB
United Kingdom
Prior art keywords
valve
hammer
pins
tool
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
GB5110171A
Other languages
English (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.)
WOTHINGTON CORP
Original Assignee
WOTHINGTON 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 WOTHINGTON CORP filed Critical WOTHINGTON CORP
Publication of GB1360446A publication Critical patent/GB1360446A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S173/00—Tool driving or impacting
    • Y10S173/04—Liquid operated

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
GB5110171A 1970-11-09 1971-11-03 Hydraulic device with back pressure isolation Expired GB1360446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8796670A 1970-11-09 1970-11-09

Publications (1)

Publication Number Publication Date
GB1360446A true GB1360446A (en) 1974-07-17

Family

ID=22208316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5110171A Expired GB1360446A (en) 1970-11-09 1971-11-03 Hydraulic device with back pressure isolation

Country Status (5)

Country Link
US (1) US3695366A (enExample)
CA (1) CA935354A (enExample)
DE (1) DE2155701C3 (enExample)
FR (1) FR2113667A5 (enExample)
GB (1) GB1360446A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109570421A (zh) * 2018-12-15 2019-04-05 浙江雅晶电子有限公司 一种to管座自动打扁机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857448A (en) * 1971-11-15 1974-12-31 Proline Ind Pty Ltd Hydraulically operated tamper
US3792733A (en) * 1973-02-15 1974-02-19 O Crandall Beet harvesting machine
US4094365A (en) * 1974-05-20 1978-06-13 Robert Bosch Gmbh Electrohydraulically operated portable power tool
SE501276C2 (sv) * 1989-10-28 1995-01-09 Berema Atlas Copco Ab Handhållen slående maskin
WO2005065891A1 (en) * 2003-12-19 2005-07-21 Clark Equipment Company Impact tool
FI123463B (fi) * 2010-10-21 2013-05-15 Unisto Oy Paineellisella väliaineella toimiva iskulaite

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA819486A (en) * 1969-08-05 Worthington Corporation Hydraulic hammer
US2881739A (en) * 1955-11-23 1959-04-14 Huppert & Co Ltd C Hydraulic percussion tool
US3213615A (en) * 1961-07-11 1965-10-26 Atlas Copco Ab Hydraulically actuated reciprocable tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109570421A (zh) * 2018-12-15 2019-04-05 浙江雅晶电子有限公司 一种to管座自动打扁机
CN109570421B (zh) * 2018-12-15 2023-11-28 浙江雅晶电子有限公司 一种to管座自动打扁机

Also Published As

Publication number Publication date
CA935354A (en) 1973-10-16
DE2155701A1 (de) 1972-05-10
FR2113667A5 (enExample) 1972-06-23
US3695366A (en) 1972-10-03
DE2155701C3 (de) 1975-10-09
AU3542071A (en) 1973-05-10
DE2155701B2 (de) 1975-02-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee