Patents Assigned to Rick L. Chapman
  • High efficiency permanent air filter and method of manufacture
    Patent number: 6056809
    Abstract: An air filter for use in residential and commercial heating and air conditioning systems including a laminated unit (100) having a filter media (102) where either side of the filter media (102) has a porous layer (104, 106) of passive electrostatic netting. The air filter has a corrugation configuration (142, 144) to increase the available surface area when compared to conventional flat filters.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: May 2, 2000
    Assignee: Rick L. Chapman
    Inventor: Rick L. Chapman