Patents by Inventor Lachlan A. Stewart,, III

Lachlan A. Stewart,, III 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).

  • Anti-siphonic toilet
    Patent number: 9752311
    Abstract: A wash-down toilet including a bowl, a passageway, and a trapway. The bowl includes a sump. The passageway includes an inlet in fluid communication with the sump, an outlet provided at a height above the inlet, and a weir. The trapway includes an inlet, an outlet, and a vent, with the inlet of the trapway being in fluid communication with the outlet of the passageway and the outlet being in fluid communication with a soil pipe. The vent is configured to introduce a supply of air into the trapway during a flush cycle to prevent siphoning.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: September 5, 2017
    Assignee: KOHLER CO.
    Inventors: Robert S. Davis, Thomas M. Spankowski, Lachlan A. Stewart, III
  • ANTI-SIPHONIC TOILET
    Publication number: 20140259350
    Abstract: A wash-down toilet including a bowl, a passageway, and a trapway. The bowl includes a sump. The passageway includes an inlet in fluid communication with the sump, an outlet provided at a height above the inlet, and a weir. The trapway includes an inlet, an outlet, and a vent, with the inlet of the trapway being in fluid communication with the outlet of the passageway and the outlet being in fluid communication with a soil pipe. The vent is configured to introduce a supply of air into the trapway during a flush cycle to prevent siphoning.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: KOHLER CO.
    Inventors: Robert S. Davis, Thomas M. Spankowski, Lachlan A. Stewart,, III