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.

Date of Patent:
Jun. 06, 2023

Filed:

Sep. 07, 2021
Applicants:

Evan Schneider, Piedmont, CA (US);

Daniel Haarburger, Boulder, CO (US);

Inventors:

Evan Schneider, Piedmont, CA (US);

Daniel Haarburger, Boulder, CO (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E03D 9/03 (2006.01); E03D 9/02 (2006.01);
U.S. Cl.
CPC ...
E03D 9/038 (2013.01); E03D 2009/028 (2013.01);
Abstract

A system for automatic dispensing of a liquid into a toilet bowl includes a dispenser and a liquid refill cartridge. The dispenser mechanically interfaces with the toilet tank and connects with the water supply therein. When the toilet is flushed, fresh water flows from the float valve into the dispenser, and then back into the toilet bowl via the overfill tube. Within the dispenser, the water flow is constricted through an integral venturi before exiting. The venturi yields a pressure differential inside the dispenser that pulls liquid from the refill cartridge and into the outflow of water. A specified volume of liquid is drawn from the liquid refill cartridge and dispersed into the toilet bowl after every flush, without the use of electronics. The liquid may be an odor blocking liquid, a scented liquid, a colorant, enzymes, or a cleaning solution, among others.


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