Patents by Inventor David A. Grass

David A. Grass 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).

  • Publication number: 20120304939
    Abstract: A stowable ramp configured for use with a pet tub. The ramp comprises an upper section, a lower section and a pair of wheels. The upper section is a substantially rectangular platform whose upper section is hingeably attached to the tub and disposed substantially at the bottom periphery of the tub's opening. The lower section comprises a substantially rectangular platform whose upper edge is hingeably connected to the lower edge of the upper section. Each wheel is disposed at the lower end of the lower section and oriented in such a manner that its axis of rotation is substantially parallel to the axes of rotation of the hinges. At least one finger hold is further provided on each side of the platform and disposed substantially toward the bottom end of the upper section.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Inventor: David A. Grass
  • Publication number: 20110239380
    Abstract: A stowable ramp configured for use with a pet tub. The ramp comprises an upper section, a lower section and a pair of wheels. The upper section is a substantially rectangular platform whose upper section is hingeably attached to the tub and disposed substantially at the bottom periphery of the tub's opening. The lower section comprises a substantially rectangular platform whose upper edge is hingeably connected to the lower edge of the upper section. Each wheel is disposed at the lower end of the lower section and oriented in such a manner that its axis of rotation is substantially parallel to the axes of rotation of the hinges. At least one finger hold is further provided on each side of the platform and disposed substantially toward the bottom end of the upper section. In order to stow an erected ramp, an operator lifts the ramp at the finger hold using one or two fingers such that the bottom section swings towards the tub and tucks the ramp under the tub.
    Type: Application
    Filed: February 9, 2011
    Publication date: October 6, 2011
    Inventor: David A. Grass