ZA747573B - Improvements in or relating to hydraulically-operated devices - Google Patents

Improvements in or relating to hydraulically-operated devices

Info

Publication number
ZA747573B
ZA747573B ZA00747573A ZA747573A ZA747573B ZA 747573 B ZA747573 B ZA 747573B ZA 00747573 A ZA00747573 A ZA 00747573A ZA 747573 A ZA747573 A ZA 747573A ZA 747573 B ZA747573 B ZA 747573B
Authority
ZA
South Africa
Prior art keywords
hydraulically
relating
operated devices
operated
devices
Prior art date
Application number
ZA00747573A
Other languages
English (en)
Inventor
L Reynolds
Original Assignee
Af Hydraulics
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 Af Hydraulics filed Critical Af Hydraulics
Publication of ZA747573B publication Critical patent/ZA747573B/xx

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
ZA00747573A 1973-12-01 1974-11-27 Improvements in or relating to hydraulically-operated devices ZA747573B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5579473A GB1440956A (en) 1973-12-01 1973-12-01 Hydraulically-operated devices

Publications (1)

Publication Number Publication Date
ZA747573B true ZA747573B (en) 1975-12-31

Family

ID=10474906

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00747573A ZA747573B (en) 1973-12-01 1974-11-27 Improvements in or relating to hydraulically-operated devices

Country Status (13)

Country Link
US (1) US4020747A (fr)
JP (1) JPS5084770A (fr)
AU (1) AU477109B2 (fr)
BE (1) BE822840A (fr)
DE (1) DE2456090A1 (fr)
DK (1) DK620974A (fr)
ES (1) ES432495A1 (fr)
FR (1) FR2253153A1 (fr)
GB (1) GB1440956A (fr)
IT (1) IT1026595B (fr)
NL (1) NL7415562A (fr)
SE (1) SE7414972L (fr)
ZA (1) ZA747573B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556754A (en) * 1976-12-10 1979-11-28 Af Hydraulics Hydraulically-actuated percussive device with overstroke damping
US4098355A (en) * 1977-01-27 1978-07-04 Raymond International Inc. Underwater hammer with circumferential flow seal
ZA771338B (en) * 1977-03-04 1978-06-28 Steel Eng Co Ltd Hydraulic percussive machines
ES464093A1 (es) * 1977-11-12 1978-12-16 Luis Miguel Castejon Castan Perfeccionamientos en los sistemas de fluidos alternantes y aparato para su realizacion.
SE8102430L (sv) * 1981-04-15 1982-10-16 Atlas Copco Ab Forfarande och anordning for att dempa stotvagor
US4492147A (en) * 1983-12-30 1985-01-08 Knapp Pneumatics, Inc. Reciprocatory air motor with cushioning pistons
FR2596681B1 (fr) * 1986-04-03 1988-06-10 Eimco Secoma Appareil de percussion hydraulique avec dispositif d'amortissement des ondes de choc en retour
FR2639279B1 (fr) * 1988-11-23 1991-01-04 Eimco Secoma Appareil de percussion hydraulique avec dispositif de frappe en retrait amortie
FI114290B (fi) * 2003-02-21 2004-09-30 Sandvik Tamrock Oy Ohjausventtiili ja järjestely iskulaitteessa

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1262170A (en) * 1916-10-30 1918-04-09 Charles B Russell Weed-puller.
GB1019988A (en) * 1963-12-04 1966-02-09 Metal Box Co Ltd Improvements in or relating to pneumatic cylinders
US3596562A (en) * 1968-01-12 1971-08-03 Nat Res Dev Transducer for converting fluid pressure oscillations into mechanical oscillations
US3661313A (en) * 1970-07-22 1972-05-09 Illinois Tool Works Power device having improved feed mechanism
US3887019A (en) * 1971-05-11 1975-06-03 Af Hydraulics Hydraulic percussive implement
US3800662A (en) * 1972-08-18 1974-04-02 Ackley Mfg Co Fluid operated reciprocating motor

Also Published As

Publication number Publication date
US4020747A (en) 1977-05-03
GB1440956A (en) 1976-06-30
FR2253153A1 (fr) 1975-06-27
JPS5084770A (fr) 1975-07-08
IT1026595B (it) 1978-10-20
AU7579174A (en) 1976-05-27
ES432495A1 (es) 1976-11-01
DE2456090A1 (de) 1975-06-05
DK620974A (fr) 1975-07-28
SE7414972L (fr) 1975-06-02
AU477109B2 (en) 1976-10-14
NL7415562A (nl) 1975-06-03
BE822840A (fr) 1975-04-01

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