Patents by Inventor Douglas Arnold

Douglas Arnold 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).

  • Patent number: 10836592
    Abstract: A portable wheelchair ramp assembly includes a ramp that is removably coupled to an armrest of a wheelchair such that the ramp is accessible to a user in the wheelchair. The ramp has an axle slot therein to accommodate a wheel axle of the wheelchair when the ramp is removably coupled to the wheelchair. The ramp is positionable to extend across uneven terrain to facilitate the wheelchair to cross the uneven terrain. A plurality of engagements is each coupled to the ramp and each of the engagements engages an arm rest on the wheelchair for storing the ramp. A plurality of brackets is each coupled to the arm rest of the wheelchair. Each of the brackets releasably engages a respective one of the engagements for retaining the ramp on the wheelchair for storage.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 17, 2020
    Inventor: Douglas Arnold
  • Patent number: 5930920
    Abstract: A golf club wiping and cleaning device is positioned by clipping it onto the upper side wall of a golf shoe in a position for wiping the club's face. The device provides a base portion and a replaceable cartridge with sliding engagement into the base. The base provides a clip on the back side of the base portion for shoe attachment.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: August 3, 1999
    Inventor: Douglas Arnold