USB548719I5 - - Google Patents

Info

Publication number
USB548719I5
USB548719I5 US54871975A USB548719I5 US B548719 I5 USB548719 I5 US B548719I5 US 54871975 A US54871975 A US 54871975A US B548719 I5 USB548719 I5 US B548719I5
Authority
US
United States
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.)
Pending
Application number
Other languages
English (en)
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
Priority to US05/548,719 priority Critical patent/US3990553A/en
Priority to CA234,523A priority patent/CA1036840A/en
Priority to ZA00755676A priority patent/ZA755676B/xx
Priority to AU85622/75A priority patent/AU488269B2/en
Priority to BR7508774*A priority patent/BR7508774A/pt
Publication of USB548719I5 publication Critical patent/USB548719I5/en
Application granted granted Critical
Publication of US3990553A publication Critical patent/US3990553A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0265—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
    • F16H61/0272—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals characterised by initiating reverse gearshift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
    • F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
US05/548,719 1975-02-10 1975-02-10 Transmission control system with improved modulating valve Expired - Lifetime US3990553A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US05/548,719 US3990553A (en) 1975-02-10 1975-02-10 Transmission control system with improved modulating valve
CA234,523A CA1036840A (en) 1975-02-10 1975-09-02 Transmission control system with improved modulating valve
ZA00755676A ZA755676B (en) 1975-02-10 1975-09-04 Transmission control system with improved modulating valve
AU85622/75A AU488269B2 (en) 1975-02-10 1975-10-10 Transmission control system with improved modulating valve
BR7508774*A BR7508774A (pt) 1975-02-10 1975-12-31 Circuito de comando hidraulico de uma transmissao

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/548,719 US3990553A (en) 1975-02-10 1975-02-10 Transmission control system with improved modulating valve

Publications (2)

Publication Number Publication Date
USB548719I5 true USB548719I5 (is") 1976-02-17
US3990553A US3990553A (en) 1976-11-09

Family

ID=24190116

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/548,719 Expired - Lifetime US3990553A (en) 1975-02-10 1975-02-10 Transmission control system with improved modulating valve

Country Status (4)

Country Link
US (1) US3990553A (is")
BR (1) BR7508774A (is")
CA (1) CA1036840A (is")
ZA (1) ZA755676B (is")

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046160A (en) * 1976-02-02 1977-09-06 International Harvester Company Transmission clutches with sequence valve and piston-controlled pressure modulator
US4294278A (en) * 1979-12-14 1981-10-13 Caterpillar Tractor Co. Pressure modulating valve
US4422536A (en) * 1981-05-08 1983-12-27 Deere & Company Transmission control system with improved modulation rate regulating valve
IT1152822B (it) * 1982-09-09 1987-01-14 F M C S P A Apparecchiatura per il controllo a distanza dei movimenti di una gru
US4729408A (en) * 1985-07-12 1988-03-08 Caterpillar Inc. Control system for independent control of fluid actuated devices
DE3532473A1 (de) * 1985-09-11 1987-03-19 Rexroth Mannesmann Gmbh Hydraulische lastgetriebesteuerung fuer die vorwaerts-rueckwaerts-schaltung
US4742731A (en) * 1986-12-18 1988-05-10 Payhauler Corp. Transmission range selector valve
US4871048A (en) * 1987-09-21 1989-10-03 Dresser Industries, Inc. Control system for vehicle transmissions
US4924983A (en) * 1987-12-10 1990-05-15 Kubota, Ltd. Propelling clutch apparatus for a working vehicle
GB2235262B (en) * 1989-07-21 1993-09-29 Kubota Kk Hydraulically controllable transmission
US6729454B2 (en) 2002-05-06 2004-05-04 Deere & Company Transmission with a two-step actuator valve
ITMO20070097A1 (it) * 2007-03-20 2008-09-21 Safim S P A "apparato idraulico"
US9539406B2 (en) * 2013-09-10 2017-01-10 General Electric Company Interface device and method for supplying gas flow for subject breathing and apparatus for supplying anesthetic agent to the interface device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137311A (en) * 1962-07-02 1964-06-16 Caterpillar Tractor Co Manually operated modulation valve
US3468194A (en) * 1967-05-10 1969-09-23 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system
US3882980A (en) * 1973-04-27 1975-05-13 Caterpillar Tractor Co Transmission control system with dual purpose modulating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137311A (en) * 1962-07-02 1964-06-16 Caterpillar Tractor Co Manually operated modulation valve
US3468194A (en) * 1967-05-10 1969-09-23 Caterpillar Tractor Co Hydraulic pressure modulating transmission control system
US3882980A (en) * 1973-04-27 1975-05-13 Caterpillar Tractor Co Transmission control system with dual purpose modulating

Also Published As

Publication number Publication date
ZA755676B (en) 1976-09-29
AU8562275A (en) 1977-04-21
US3990553A (en) 1976-11-09
BR7508774A (pt) 1976-08-24
CA1036840A (en) 1978-08-22

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515