The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 1977
Filed:
Feb. 25, 1975
Edward J Fischer, Crescent Springs, KY (US);
Other;
Abstract
An anti-syphon device for a water supply line of a toilet tank having an opening in a bottom wall thereof. A tubular inlet fitting is mounted in the opening and has a lower portion extending downwardly from the bottom wall. The water supply line underlies the inlet fitting and includes a main portion, a head portion of enlarged diameter, and an outwardly extending flange at an upper end of the head portion. A washer forms a seal between the flange of the water supply line and the lower portion of the inlet fitting. The washer includes a portion extending inwardly of the head portion. There is a valve seat at the lower end of the head portion and a valve member, which is inside the head portion, engages the valve seat to form a seal therewith. A compression spring bears on the valve member and on the inwardly extending portion of the washer member to urge the valve member to closed position.