Patents by Inventor Laurence I. Jayne

Laurence I. Jayne 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: 4618155
    Abstract: The invention is an apparatus or wheelchair of conventional doorway width capable of negotiating stairways, turning about landings as necessary. The chair includes an outer supporting assembly, preferably the normal transport wheels, and an inner supporting assembly or feet. The chair includes mechanisms for elevating the supporting assemblies, in turn, while the other assembly supports the weight of the chair. The elevating mechanism is connected to the chair seat such that, upon elevation of a supporting assembly, the chair elevates also. The elevated assembly is articulated and advanced on horizontal slide bearings into contact with the stairs, with supporting elements resting on both lower and upper stair treads. The chair and occupant are then advanced on horizontal slide bearings over the new supporting assembly. The elevating mechanism then transfers chair weight to the new supporting assembly and elevates the former supporting assembly.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: October 21, 1986
    Inventor: Laurence I. Jayne