Patents by Inventor Charles F. Kruse

Charles F. Kruse 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: 4702478
    Abstract: A collapsible goal frame having a crossbar, four uprights, two rear crossmembers and four sidemembers. The crossbar is detachable from sockets on the front uprights and pulls apart into three members of equal length and uniform diameter held together by an elastic cord threaded through the members. Uprights and crossmembers consist of telescoping members which are held in extended position by spring buttons. Telescoping members are retracted to collapse the frame. Four hinges join the sidemembers to the rear crossmembers, so that after the telescoping members are retracted, sides fold parallel to rear crossmembers. Lower sidemembers are weighted to add stability.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: October 27, 1987
    Inventor: Charles F. Kruse