TREA

S.R.M. Hydromekanik Aktiebolag

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  • Stockholm-Vallingby, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power shift planetary gear transmission
    • Patent number 4,559,849
    • Issue date Dec 24, 1985
    • S.R.M. Hydromekanik Aktiebolag
    • Karl-Gustav Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multistage transmission for motor vehicles
    • Patent number 4,480,503
    • Issue date Nov 6, 1984
    • S.R.M. Hydromekanik Aktiebolag
    • Karl-Gustav Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydromechanical transmissions
    • Patent number 4,347,761
    • Issue date Sep 7, 1982
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Pumps
    • Patent number 4,347,044
    • Issue date Aug 31, 1982
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Multi-speed planetary gear
    • Patent number 4,328,716
    • Issue date May 11, 1982
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Braking method for vehicle transmission
    • Patent number 4,314,487
    • Issue date Feb 9, 1982
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Multiple disc clutch
    • Patent number 4,301,904
    • Issue date Nov 24, 1981
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydraulic valve system for controlling particularly a vehicle gearbox
    • Patent number 4,262,554
    • Issue date Apr 21, 1981
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Multi-speed planetary gear
    • Patent number 4,214,489
    • Issue date Jul 29, 1980
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Two-speed gear transmission
    • Patent number 4,178,814
    • Issue date Dec 18, 1979
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multiple speed double planetary gear transmission
    • Patent number 4,142,425
    • Issue date Mar 6, 1979
    • S.R.M. Hydromekanik Aktiebolag
    • Karl G. Ahlen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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