CA1037821A - Foreuse hydraulique - Google Patents

Foreuse hydraulique

Info

Publication number
CA1037821A
CA1037821A CA296,963A CA296963A CA1037821A CA 1037821 A CA1037821 A CA 1037821A CA 296963 A CA296963 A CA 296963A CA 1037821 A CA1037821 A CA 1037821A
Authority
CA
Canada
Prior art keywords
hammer
drill
fluid
pressure fluid
pressure
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
CA296,963A
Other languages
English (en)
Inventor
James R. Mayer
Dieter K. Palauro
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.)
Gardner Denver Inc
Original Assignee
Gardner Denver 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
Priority claimed from US05/621,935 external-priority patent/US3995700A/en
Application filed by Gardner Denver Inc filed Critical Gardner Denver Inc
Application granted granted Critical
Publication of CA1037821A publication Critical patent/CA1037821A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA296,963A 1975-10-14 1978-02-15 Foreuse hydraulique Expired CA1037821A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/621,935 US3995700A (en) 1975-10-14 1975-10-14 Hydraulic rock drill system
CA250,602A CA1035245A (fr) 1975-10-14 1976-04-21 Brise-roche hydraulique

Publications (1)

Publication Number Publication Date
CA1037821A true CA1037821A (fr) 1978-09-05

Family

ID=25668273

Family Applications (1)

Application Number Title Priority Date Filing Date
CA296,963A Expired CA1037821A (fr) 1975-10-14 1978-02-15 Foreuse hydraulique

Country Status (1)

Country Link
CA (1) CA1037821A (fr)

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