Patents by Inventor John L. Carl

John L. Carl 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: 5443397
    Abstract: The electric connector plug retainer (10) holds a male electric plug (12) in engagement with a female electric plug (14). The electric connector plug retainer (10) includes a first ring section (40) with a central aperture (48) for the passage of an electric cable (16) and a second ring section (42) for the passage of an electric cable (18). Elongated elastic members (44 and 46) are integral with the first and second ring sections (40 and 42), bias the first and second ring sections toward each other and bias the electric plug (12) and the electric plug (14) toward each other to retain an electric connection. A slit (52) is provided in the second ring section for the passage of a cable (18) into and out of the central aperture (50). Tabs (54) are provided in the slit (52) to restrict the passage of a cable through the slit. A slit (68) can be provided in the first ring section (40) if desired.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 22, 1995
    Inventor: John L. Carl