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Frederick E. Schuler

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  • St. Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    By-pass valve
    • Patent number 4,702,269
    • Issue date Oct 27, 1987
    • Donaldson Company, Inc.
    • Fredrick E. Schuler
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact dust filter assembly
    • Patent number 4,395,269
    • Issue date Jul 26, 1983
    • Donaldson Company, Inc.
    • Frederick E. Schuler
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter element support member
    • Patent number 4,171,963
    • Issue date Oct 23, 1979
    • Donaldson Company, Inc.
    • Frederick E. Schuler
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Suspension gasket seal and system for baghouse filter units
    • Patent number 4,159,197
    • Issue date Jun 26, 1979
    • Donaldson Company, Inc.
    • Frederick E. Schuler
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL