FR730222A - Distribution mechanism for pneumatic hammers - Google Patents

Distribution mechanism for pneumatic hammers

Info

Publication number
FR730222A
FR730222A FR730222DA FR730222A FR 730222 A FR730222 A FR 730222A FR 730222D A FR730222D A FR 730222DA FR 730222 A FR730222 A FR 730222A
Authority
FR
France
Prior art keywords
distribution mechanism
pneumatic hammers
hammers
pneumatic
distribution
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
Jean-Francois Declaye
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 FR730222A publication Critical patent/FR730222A/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
    • B25D9/16—Valve arrangements therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR730222D 1931-01-21 1932-01-20 Distribution mechanism for pneumatic hammers Expired FR730222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE730222X 1931-01-21

Publications (1)

Publication Number Publication Date
FR730222A true FR730222A (en) 1932-08-09

Family

ID=3879135

Family Applications (1)

Application Number Title Priority Date Filing Date
FR730222D Expired FR730222A (en) 1931-01-21 1932-01-20 Distribution mechanism for pneumatic hammers

Country Status (1)

Country Link
FR (1) FR730222A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377871A1 (en) * 1977-01-24 1978-08-18 Mekafor Pneumatic drill compressed air distributor - has plastics housing of two distinct pieces containing reciprocating metal pastille
FR2385496A1 (en) * 1977-03-28 1978-10-27 Mekafor Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end
FR2454875A1 (en) * 1979-04-25 1980-11-21 Pt Instit Portable pneumatic percussion tool - has conical spring fitted between valve plate and inlet tube to absorb shocks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377871A1 (en) * 1977-01-24 1978-08-18 Mekafor Pneumatic drill compressed air distributor - has plastics housing of two distinct pieces containing reciprocating metal pastille
FR2385496A1 (en) * 1977-03-28 1978-10-27 Mekafor Pneumatic drill with bit guide sleeve one end - has air distributor encased in shock absorbent casing other end
FR2454875A1 (en) * 1979-04-25 1980-11-21 Pt Instit Portable pneumatic percussion tool - has conical spring fitted between valve plate and inlet tube to absorb shocks

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