Patents by Inventor Frederick L. Day

Frederick L. Day 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: 4229039
    Abstract: A travel chair includes a back pivotable both forwardly and rearwardly and pivotable underneath the chair to form a generally triangular arrangement for ease in carrying and further includes detachable wheels for use of the chair in automobiles and the like. The chair further includes a pair of spring means for biasing the rear legs in a rearward direction and means for removably securing and adjusting the footrests, as well as spring-biasing means for urging the rear handles in a locked position. Finally, front handles are pivotable in vertical and horizontal directions, and a head restraint is provided.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: October 21, 1980
    Inventor: Frederick L. Day
  • Patent number: 4113307
    Abstract: A method and apparatus for transporting the physically handicapped in the form of an insert travel chair, including a pair of pivoting wheels at the front thereof and the rear portion under the seat being unobstructed whereby the chair may be nested onto the seat of a conventional chair. The chair includes roller means attached to the rear of the seat portion and a pair of handles which can be adjustably pivoted upwardly whereby the chair can be easily manipulated and slid down an emergency evacuation chute or other incline on the front wheels, the roller means attached to the rear of the seat and the handles extending rearwardly and outwardly to provide multiple points of contact with the chute or incline.
    Type: Grant
    Filed: May 25, 1977
    Date of Patent: September 12, 1978
    Inventor: Frederick L. Day