Patents by Inventor Mary R. Holt

Mary R. Holt 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).

  • Dust mop
    Patent number: 5406670
    Abstract: A dust mop having a frame handle and mop yarn attached to at least one side of the frame. The frame having an integral handle socket attached to the frame by the tongue. The tongue is sufficiently flexible to flex under user pressure to keep the mop yarn in contact with the surface to be dusted and to remain substantially in a horizontal position when raised above the floor.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 18, 1995
    Assignee: Vining Industries, Inc.
    Inventors: Diana W. Juratovac, Rainer B. Teufel, Thomas J. Ward, Mary R. Holt
  • Refill sponge mop with composite curved wringer plate
    Patent number: 5406667
    Abstract: A sponge mop head is provided which protects a scrub strip during wringing operations by the use of a composite curved wringer plate assembly which envelops the scrub strip while allowing the mopping solution to be expelled from the sponge. In addition, a turn lock system is provided on the sponge mop head for conveniently removing and replacing a sponge mop refill cartridge.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 18, 1995
    Assignee: Vining Industries, Inc.
    Inventors: Rainer B. Teufel, Paul R. Burger, Mary R. Holt, Diana W. Juratovac, Thomas J. Ward