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Donald E. Bardsley

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  • Nashua, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for sealing a center valve vacuum filter
    • Patent number 5,194,153
    • Issue date Mar 16, 1993
    • Ingersoll-Rand Company
    • Donald E. Bardsley
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Rotating drum end seal
    • Patent number 4,821,536
    • Issue date Apr 18, 1989
    • Ingersoll-Rand Company
    • Donald E. Bardsley
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Feeding device for use in filter presses
    • Patent number 4,317,724
    • Issue date Mar 2, 1982
    • Ingersoll-Rand Company
    • Donald E. Bardsley
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL