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:
May. 07, 2024

Filed:

Jul. 20, 2022
Applicant:

Acorn Engineering Company, Inc., City of Industry, CA (US);

Inventors:

Pui Yuen Ng, Eastvale, CA (US);

Luis Fernando Prieto, Chino, CA (US);

Adrian Alexander Filip, Corona, CA (US);

Alan Long Thien Du, Covina, CA (US);

Edward Barry Knoles, Duarte, CA (US);

Assignee:

Acorn Engineering Company, Inc., City of Industry, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 15/03 (2006.01); F16K 27/02 (2006.01);
U.S. Cl.
CPC ...
F16K 15/03 (2013.01); F16K 27/0209 (2013.01); F16K 15/035 (2013.01); Y10T 137/7838 (2015.04); Y10T 137/7898 (2015.04); Y10T 137/7903 (2015.04);
Abstract

A backflow prevention device includes a main pipe body extending along a first center longitudinal axis, at least one check valve disposed within the main pipe body, an inlet pipe connected to an inlet side of the main pipe body, and an outlet pipe connected to an outlet side of the main pipe body. The inlet pipe and the outlet pipe extend along a second center longitudinal axis. The first center longitudinal axis is offset with respect to the second center longitudinal axis in a direction perpendicular to the first and second center longitudinal axes. A center of the valve seat of the at least one check valve is offset with respect to the second center longitudinal axis in the direction perpendicular to the first and second longitudinal axes.


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