Patents by Inventor Bill Culwell

Bill Culwell 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: 8955172
    Abstract: An improved method of installing a closet flange allows installation of plumbing fixtures with a reduced likelihood of leaks. The method involves telescopically fitting an inner or outer surface of a drainpipe to a surface of a cylindrical portion of a hub of a closet flange, where the hub has a base flange extending therefrom; and securing the base flange against the upper surface of a subfloor. A first layer of sealant is applied to an upper surface of the base flange; and a flooring membrane is secured to the upper surface of the base flange by the first layer of sealant. A second layer of sealant is applied to an upper surface of the flooring membrane; and the upper surface of the flooring membrane is clamped between the base flange and a clamping ring. The method may be performed using a two-part closet flange for connection to a drain pipe for a toilet.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: February 17, 2015
    Inventor: Bill Culwell
  • Patent number: 8800069
    Abstract: A transfer seat to be used in conjunction with a toilet improves access to sanitary facilities by the disabled. The transfer seat may be used as one element of a modular system for improving bathroom fixtures designed for use by the handicapped. This modular system includes a transfer seat to be used in conjunction with a toilet; a hand rail assembly designed for use with the transfer seat; and a shower distribution system designed for use with the hand rail assembly. The components of this modular system may be used separately or together.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: August 12, 2014
    Assignee: Culnat, LLC.
    Inventor: Bill Culwell
  • Publication number: 20110131715
    Abstract: An improved method of installing a closet flange allows installation of plumbing fixtures with a reduced likelihood of leaks. The method involves telescopically fitting an inner or outer surface of a drainpipe to a surface of a cylindrical portion of a hub of a closet flange, where the hub has a base flange extending therefrom; and securing the base flange against the upper surface of a subfloor. A first layer of sealant is applied to an upper surface of the base flange; and a flooring membrane is secured to the upper surface of the base flange by the first layer of sealant. A second layer of sealant is applied to an upper surface of the flooring membrane; and the upper surface of the flooring membrane is clamped between the base flange and a clamping ring. The method may be performed using a two-part closet flange for connection to a drain pipe for a toilet.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 9, 2011
    Inventor: Bill Culwell
  • Publication number: 20100251472
    Abstract: A transfer seat to be used in conjunction with a toilet improves access to sanitary facilities by the disabled. The transfer seat may be used as one element of a modular system for improving bathroom fixtures designed for use by the handicapped. This modular system includes a transfer seat to be used in conjunction with a toilet; a hand rail assembly designed for use with the transfer seat; and a shower distribution system designed for use with the hand rail assembly. The components of this modular system may be used separately or together.
    Type: Application
    Filed: April 5, 2010
    Publication date: October 7, 2010
    Inventor: Bill Culwell