Patents by Inventor Joy T. Zwanzig

Joy T. Zwanzig 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: 5464081
    Abstract: A concealed retractable U-shaped handle for a suitcase which can be retained at any desired angle to facilitate pushing and lifting the suitcase after the handle is fully extended. The handle includes socket seats and balls for adjustment of the pushing and lifting angle. Each of the adjacent ends of the handle is slidably retained to a ball in the socket seat by a washer and bolt so that the handle may be freely adjusted for the desired pulling and lifting angle by the free rotation of the balls in the socket seats. A pair of toothed slots are disposed between two side walls of an L-shaped slot formed on each socket seat for securing the handle in position when it is not manually held. A backing plate, two channel elements and a cover form a guide raft assembly at a selected side of the suitcase for free reciprocation of the retractable handle.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: November 7, 1995
    Inventor: Joy T. Zwanzig