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Mark A. Kempf

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  • Inver Grove Heights, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Torque limiting device with restraining mechanism
    • Patent number 5,542,505
    • Issue date Aug 6, 1996
    • Vadnais Technologies Corporation
    • Mark Kempf
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Electro-mechanical indexing clutch & method
    • Patent number 5,538,118
    • Issue date Jul 23, 1996
    • Reell Precision Manufacturing Corporation
    • Mark A. Kempf
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adaptive spring winding device and method
    • Patent number 5,477,715
    • Issue date Dec 26, 1995
    • Reell Precision Manufacturing Corporation
    • Mark A. Kempf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Spring toe forming device and method
    • Patent number 5,454,249
    • Issue date Oct 3, 1995
    • Reell Precision Manufacturing Corporation
    • Mark A. Kempf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...