Patents Assigned to Tri-Pact Enterprises, Inc.
  • Exercise filter
    Patent number: 5771885
    Abstract: An exercise filter assembly comprises a housing with removable filters and two one-way valves. The filters remove any particulate matter three microns or greater from the air stream. The one-way valves, positioned in a unique manner, prevent undesired air flows from entering an individual's respiratory tract. The filter assembly is comprised of a lightweight sturdy plastic which is easy and comfortable to wear.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: June 30, 1998
    Assignee: Tri-Pact Enterprises, Inc.
    Inventor: Andrew C. Putrello