Patents by Inventor William E. Foernzler

William E. Foernzler 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: 5623971
    Abstract: A drain and cleanout spacer which facilitates height adjustment of the drain strainer and cleanout port after pouring a concrete slab floor. The device comprises two cup-shaped plastic spacers joined by a flexible web. The first spacer has inside dimensions slightly larger than the outside dimensions of the drain strainer, while the second spacer has inside dimensions slightly larger than the outside dimensions of the cleanout port. The spacers are preferably made from a frangible material, such as plastic. The spacers are placed over the drain strainer and the cleanout port prior to pouring the concrete slab floor. After the concrete has hardened, the tops of the spacers are broken away and the height of the drain strainer and the cleanout port are adjusted to the level of the floor. Thereafter, caulking is applied around the dram strainer and the cleanout port in order to seal them to the floor. A flag is coupled to one of the spacers in order to easily signal the location of the device.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: April 29, 1997
    Inventor: William E. Foernzler