US148393A - Improvement - Google Patents

Improvement Download PDF

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Publication number
US148393A
US148393A US148393DA US148393A US 148393 A US148393 A US 148393A US 148393D A US148393D A US 148393DA US 148393 A US148393 A US 148393A
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United States
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improvement
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Expired - Lifetime
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    • 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
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transplanting Machines (AREA)

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US148393D Improvement Expired - Lifetime US148393A (en)

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US148393A true US148393A (en) 1874-03-10

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ID=2217806

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US148393D Expired - Lifetime US148393A (en) Improvement

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435270A (en) * 1943-05-26 1948-02-03 United Shoe Machinery Corp Valved-cylinder type motor
US3236318A (en) * 1963-03-22 1966-02-22 Socony Mobil Oil Co Inc Percussion drilling method and apparatus
US4274327A (en) * 1979-02-16 1981-06-23 Olsgaard Orin J Expansible chamber device
US20140380452A1 (en) * 2013-06-25 2014-12-25 Nxp B.V. Security token and transaction authorization system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435270A (en) * 1943-05-26 1948-02-03 United Shoe Machinery Corp Valved-cylinder type motor
US3236318A (en) * 1963-03-22 1966-02-22 Socony Mobil Oil Co Inc Percussion drilling method and apparatus
US4274327A (en) * 1979-02-16 1981-06-23 Olsgaard Orin J Expansible chamber device
US20140380452A1 (en) * 2013-06-25 2014-12-25 Nxp B.V. Security token and transaction authorization system

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