FR720073A - Improvements to pneumatic hammers - Google Patents

Improvements to pneumatic hammers

Info

Publication number
FR720073A
FR720073A FR720073DA FR720073A FR 720073 A FR720073 A FR 720073A FR 720073D A FR720073D A FR 720073DA FR 720073 A FR720073 A FR 720073A
Authority
FR
France
Prior art keywords
pneumatic hammers
hammers
pneumatic
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
French (fr)
Inventor
Paul Guilbert
Paul Leuillieux
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
Application granted granted Critical
Publication of FR720073A publication Critical patent/FR720073A/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
    • B25D9/14—Control devices for the reciprocating piston
FR720073D 1931-07-16 1931-07-16 Improvements to pneumatic hammers Expired FR720073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR720073T 1931-07-16

Publications (1)

Publication Number Publication Date
FR720073A true FR720073A (en) 1932-02-15

Family

ID=9091692

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720073D Expired FR720073A (en) 1931-07-16 1931-07-16 Improvements to pneumatic hammers

Country Status (1)

Country Link
FR (1) FR720073A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968750C (en) * 1951-03-30 1958-03-27 Atlas Copco Ab Free-flying hammer piston for hammer drills
US5587228A (en) * 1985-02-05 1996-12-24 The Boeing Company Microparticle enhanced fibrous ceramics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968750C (en) * 1951-03-30 1958-03-27 Atlas Copco Ab Free-flying hammer piston for hammer drills
US5587228A (en) * 1985-02-05 1996-12-24 The Boeing Company Microparticle enhanced fibrous ceramics

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