Patents by Inventor Norman V. Walters

Norman V. Walters 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).

  • Method and device for securing a flexible covering
    Patent number: 5394579
    Abstract: A device (20) for releasably securing a flexible covering such as a sheet (18) on a water-filled mattress (16) within a supporting frame (12). The releasable device (20) includes a cord gripping subassembly (22) for gripping a non-elastic cord (74) between a pair of inner and outer bodies (26, 28) under a predetermined gripping force as determined by a spring (56) urging inner body (28) against cord lengths (80, 81) of the cord (74). A loop (82) is positioned over a retainer (78) beneath the sheet (18) and drawn tight by manual pulling of a cord length (81). Then the cord (74) is anchored to bracket (24) by pulling the free end (79) of the cord (74). A cord gripping subassembly (22A) on bracket (24) similar to cord gripping subassembly (22) grips this cord (74) on bracket (24) for tightening of the cord (74) extending from cord gripping subassembly (22) and retainer (78).
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: March 7, 1995
    Inventor: Norman V. Walters