Patents by Inventor Larry T Williams

Larry T Williams 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).

  • Toilet seat lifting device
    Patent number: 6012180
    Abstract: A pair of compound leaf springs are formed to hold a commode seat in the up position. The leaf springs have a primary curve for spring lifting power, a second curve to reduce friction between the seat and spring when the seat is lowered, and a third curve to act as a spring washer to hold the leaf spring in place between the seat and commode. By holding the seat in the up position unless a user wishes to lower it, the seat is less apt to be soiled when the commode is used for urination.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: January 11, 2000
    Inventor: Larry T Williams