Patents by Inventor Luther M. Sheldon

Luther M. Sheldon 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: 4050774
    Abstract: An electric cap device and electric connector device are provided with means for connecting a plurality of wires in insulated relation to each other. Four independently insulated wire connectors are provided in the back of the device so that wire lying in an axial direction can be connected to the wire terminals and so that the wire terminals may be operated by an attachment means, such as a screw extending radially in the cap or connector housing. In addition a fifth central electrical contact is provided so that a fifth wire may be extended axially into the wire terminal and the wire terminal may be operated by a radially extended attachment means, such as a screw. The fifth wire terminal connecting to a fifth current carrying element of the cap or connector is independently insulated by an insulating wall extending up from and integrally with the insulating housing containing the contacts to which the five wires are attached.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: September 27, 1977
    Assignee: General Electric Company
    Inventor: Luther M. Sheldon
  • Patent number: 3989340
    Abstract: An insulated clamp is provided for attachment to a cap or connector and for clamping a cable terminating in the cap or connector. The clamp includes an insulating lower cover for the cap or connector, a set of clamping cleats cooperating on ramps in the lower cover, and an insulating upper cover engaged with the lower cover by threads on confronting surfaces thereof. The lower cover has a generally tubular form and includes at its lower end an external hand gripping surface and internal means for attachment to and about the wire terminals of a cap or connector. The lower cover also has at its upper end a set of threads on an external surface and an internal set of ramps spaced radially around its inner periphery. The set of clamping cleats is mounted on a pliable band and the individual cleats have a double wedge form. The cleats are symetrically spaced around the band at stations matching the ramps of the lower cover.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: November 2, 1976
    Assignee: General Electric Company
    Inventors: Luther M. Sheldon, Robert E. Maloof