Patents by Inventor Barbara Dougherty

Barbara Dougherty 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).

  • Valve arrangement for hand held liquid applicator
    Patent number: 6364557
    Abstract: A liquid applicator arrangement (10) comprising an applicator unit (11) having an applicator head member (20) provided with apertures (21) and bristles, and further including an elongated neck element (23) provided with a stepped shoulder portion (24) which defines a valve seat (25) dimensioned to receive a ball valve member (40), and an elongated handle member (30) having flexible walls which define a liquid reservoir (32) in the handle member (30). The lower end (33) of the handle member (30) is fixedly secured to the exterior of the stepped shoulder portion (24) of the applicator head member (20).
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: April 2, 2002
    Inventor: Barbara Dougherty