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Louis W. Johnson

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  • Eugene, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vertical shaft impactor with suspended impeller
    • Patent number 7,077,348
    • Issue date Jul 18, 2006
    • Louis Wein Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Gyratory crusher with hydrostatic bearings
    • Patent number 7,048,214
    • Issue date May 23, 2006
    • Louis Wein Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Lift line connection for rock crusher components
    • Patent number 5,323,976
    • Issue date Jun 28, 1994
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Lift line connection for rock crusher components
    • Patent number 5,195,686
    • Issue date Mar 23, 1993
    • Louis W. Johnson
  • Information Patent Grant

    Dust seal for gyratory rock crushers
    • Patent number 4,919,348
    • Issue date Apr 24, 1990
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Dust seal for gyratory rock crushers
    • Patent number 4,919,349
    • Issue date Apr 24, 1990
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Seat member for gyratory rock crusher bowls
    • Patent number 4,773,604
    • Issue date Sep 27, 1988
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Wood golf club heads, process of treating them, and apparatus
    • Patent number 4,729,911
    • Issue date Mar 8, 1988
    • Louis W. Johnson
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Shaker screen
    • Patent number 4,632,751
    • Issue date Dec 30, 1986
    • Louis W. Johnson
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Apparatus for determining the swing inertia of golf clubs
    • Patent number 4,603,577
    • Issue date Aug 5, 1986
    • Louis W. Johnson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Joint assembly
    • Patent number 4,571,112
    • Issue date Feb 18, 1986
    • Louis W. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Golf iron and method of construction
    • Patent number 4,540,178
    • Issue date Sep 10, 1985
    • Louis W. Johnson
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Shaker screen
    • Patent number 4,529,510
    • Issue date Jul 16, 1985
    • Louis W. Johnson
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Load bearing surface
    • Patent number 4,454,994
    • Issue date Jun 19, 1984
    • Louis W. Johnson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Power drive structure for rotating threadedly supported rock crushe...
    • Patent number 4,351,490
    • Issue date Sep 28, 1982
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Cone crusher
    • Patent number 4,192,472
    • Issue date Mar 11, 1980
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Vibrating screen apparatus
    • Patent number 4,170,549
    • Issue date Oct 9, 1979
    • Louis W. Johnson
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Impact crusher
    • Patent number 4,065,063
    • Issue date Dec 27, 1977
    • El-Jay, Inc.
    • Louis W. Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

  • Information Patent Application

    Vertical shaft impactor with suspended impeller
    • Publication number 20050017110
    • Publication date Jan 27, 2005
    • Louis Wein Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    Gyratory crusher with hydrostatic bearings
    • Publication number 20040035967
    • Publication date Feb 26, 2004
    • Louis Wein Johnson
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...