CA962553A - Two-speed pump - Google Patents

Two-speed pump

Info

Publication number
CA962553A
CA962553A CA143,138A CA143138A CA962553A CA 962553 A CA962553 A CA 962553A CA 143138 A CA143138 A CA 143138A CA 962553 A CA962553 A CA 962553A
Authority
CA
Canada
Prior art keywords
speed pump
pump
speed
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
CA143,138A
Inventor
Roger L. Craft
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.)
Gray Manufacturing Co Inc
Original Assignee
Gray Manufacturing Co 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
Application filed by Gray Manufacturing Co Inc filed Critical Gray Manufacturing Co Inc
Application granted granted Critical
Publication of CA962553A publication Critical patent/CA962553A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/18—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the effective cross-section of the working surface of the piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
CA143,138A 1971-10-01 1972-05-26 Two-speed pump Expired CA962553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18552871A 1971-10-01 1971-10-01

Publications (1)

Publication Number Publication Date
CA962553A true CA962553A (en) 1975-02-11

Family

ID=22681351

Family Applications (1)

Application Number Title Priority Date Filing Date
CA143,138A Expired CA962553A (en) 1971-10-01 1972-05-26 Two-speed pump

Country Status (3)

Country Link
US (1) US3775027A (en)
JP (1) JPS558920B2 (en)
CA (1) CA962553A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029841A (en) * 1973-07-17 1975-03-25
JPS5090747A (en) * 1973-12-21 1975-07-21
JPS5095579A (en) * 1973-12-29 1975-07-30
US4386889A (en) * 1981-08-17 1983-06-07 Tichy James B Radial wave pump
US4497501A (en) * 1981-10-26 1985-02-05 Equipment Company Of America Pallet truck with hydraulic lift
US4589669A (en) * 1981-10-26 1986-05-20 Equipment Company Of America Pallet truck with hydraulic lift
US4519752A (en) * 1982-09-03 1985-05-28 Applied Power Inc. Control system for a variable displacement pump
DD250705A1 (en) * 1986-07-07 1987-10-21 Madix Dresden Veb HYDRAULIC POWER GENERATOR
US5013198A (en) * 1988-11-30 1991-05-07 Schultz Richard A Air-hydraulic pump with auxiliary pumping means
DE19747852A1 (en) * 1997-10-30 1999-05-06 Bosch Gmbh Robert Piston pump
US5887431A (en) * 1997-11-06 1999-03-30 Wu; Kai-Ping Oil cylinder for a stand carriage
US7465739B2 (en) 2003-06-10 2008-12-16 Solvay Pharmaceuticals B.V. Compounds and their use in therapy
DE102005034571A1 (en) * 2004-11-12 2006-07-20 Continental Teves Ag & Co. Ohg Electrohydraulic unit
US20100096606A1 (en) * 2008-10-16 2010-04-22 Wen-Ching Lee Hydraulic jack for pallet truck
US9175676B2 (en) * 2009-12-08 2015-11-03 Les Chaussures Stc Inc. Fluid compression system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1263401A (en) * 1917-05-04 1918-04-23 William M Fraser Pump.
US2050000A (en) * 1934-06-04 1936-08-04 Elmer S Frost Lift truck
US2185264A (en) * 1936-08-26 1940-01-02 Bendix Aviat Corp Fluid pressure producing device
US2370681A (en) * 1943-06-24 1945-03-06 Auto Specialties Mfg Co Automobile jack
US2703191A (en) * 1952-07-10 1955-03-01 K P Mfg Co Multistage lubricating gun
US3112705A (en) * 1961-10-05 1963-12-03 Jane Wallen Two-speed hydraulic pumps

Also Published As

Publication number Publication date
JPS558920B2 (en) 1980-03-06
US3775027A (en) 1973-11-27
JPS4842271A (en) 1973-06-20

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