Patents by Inventor Timothy C. Rutkowski

Timothy C. Rutkowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Frameless electrostatic air filter with internal support grill
    Patent number: 6063167
    Abstract: A frameless electrostatic air filter used in heating and air conditioning systems includes a plurality of filter media layers and an internal support grill and has no external support grill or frame. The frameless electrostatic air filter has an internal support grill to support the filter media layers and a fabric edging that is secured in place all the way around the edge of the frameless electrostatic air filter. The center of the frameless electrostatic air filter is secured with a plastic rivet. The frameless electrostatic air filter seats and seals tight to the inside lip of filter receptacles.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: May 16, 2000
    Inventor: Timothy C. Rutkowski
  • Frameless electrostatic air filter with internal support grill
    Patent number: 5989320
    Abstract: A frameless electrostatic air filter used in heating and air conditioning systems includes a plurality of filter media layers and an internal support grill and has no external support grill or frame. The frameless electrostatic air filter has an internal support grill to support the filter media layers and a fabric edging that is secured in place all the way around the edge of the frameless electrostatic air filter. The center of the frameless electrostatic air filter is secured with a plastic rivet. The frameless electrostatic air filter seats and seals tight to the inside lip of filter receptacles.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: November 23, 1999
    Inventor: Timothy C. Rutkowski