Patents by Inventor James C. Kauffman

James C. Kauffman 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: 4635699
    Abstract: A retractable safety shield is made of a plurality of telescoping support members, each having an identical cross-section and capable of formation by extrusion. Each of the telescoping support members has an elongated slot cut through it for a substantial portion of the length of the support members. Parallel guide grooves are formed in one surface on opposite sides of this slot and mating parallel ribs are formed on the other surface of each of the support members. The members are slidably interconnected with one another by means of rivets through the slots to cause the guide ribs on one support member to slidably nest within the guide grooves of the adjacent support member. Flexible shields are attached to the lower edges of each of the guide members to extend downwardly toward the work surface with which the device is used.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: January 13, 1987
    Assignee: Covenant Manufacturing Co.
    Inventors: James C. Kauffman, Glenn F. Thompson