TREA

A. Thomas Abromaitis

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  • Sewickley, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air diffuser valve
    • Patent number 6,016,839
    • Issue date Jan 25, 2000
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Asymmetrical check valve
    • Patent number 5,931,197
    • Issue date Aug 3, 1999
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Inversion-resistant, readily openable tide gate valve
    • Patent number 5,769,125
    • Issue date Jun 23, 1998
    • Red Valve Company, Inc.
    • Michael Duer
    • E03 - WATER SUPPLY SEWERAGE