Patents by Inventor John R. Hudson

John R. Hudson 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: 5855387
    Abstract: A wheel chair has a rear swing axle pivotally connected to the seat frame and a spring shock absorber controls the relative movement therebetween. A front suspension is connected to the seat frame separately from the rear suspension and includes a floating beam carrying the front castor wheels and pivotally connected to the seat frame by four link control arms. Three shock absorbers acting between the front of the seat frame and the floating beam allow controlled vertical movement of the floating beam. A second embodiment has the rear wheels each connected by a separate swing arm pivotallty connected to the seat frame at their front end and each swing also connected to the rear of the seat frame by a pair of control arms and a shock absorber.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: January 5, 1999
    Assignee: Caribbean Billing International, Ltd.
    Inventors: Robert Gill, John R. Hudson