DE232167C - - Google Patents

Info

Publication number
DE232167C
DE232167C DENDAT232167D DE232167DA DE232167C DE 232167 C DE232167 C DE 232167C DE NDAT232167 D DENDAT232167 D DE NDAT232167D DE 232167D A DE232167D A DE 232167DA DE 232167 C DE232167 C DE 232167C
Authority
DE
Germany
Prior art keywords
control body
control
piston
double
air
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.)
Active
Application number
DENDAT232167D
Other languages
German (de)
English (en)
Publication of DE232167C publication Critical patent/DE232167C/de
Active 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)
  • Percussive Tools And Related Accessories (AREA)
DENDAT232167D Active DE232167C (enExample)

Publications (1)

Publication Number Publication Date
DE232167C true DE232167C (enExample)

Family

ID=492214

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT232167D Active DE232167C (enExample)

Country Status (1)

Country Link
DE (1) DE232167C (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166055A (en) * 1987-12-23 1992-11-24 Gist-Brocades N.V. Microbiological preparation of 9-alpha-hydroxy-17-keto steroids
US5298398A (en) * 1987-12-23 1994-03-29 Gist-Brocades Nv Preparation of 9-α-hydroxy-17-keto steroids using Mycobacterium species CBS 482.86

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166055A (en) * 1987-12-23 1992-11-24 Gist-Brocades N.V. Microbiological preparation of 9-alpha-hydroxy-17-keto steroids
US5298398A (en) * 1987-12-23 1994-03-29 Gist-Brocades Nv Preparation of 9-α-hydroxy-17-keto steroids using Mycobacterium species CBS 482.86

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