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.:

US 7820044 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 26, 2010

Filed:

Nov. 24, 2006
Applicants:

Teruyoshi Nawa, Kariya, JP;

Tomohiko Takeuchi, Nagoya, JP;

Toshihiro Takahara, Kariya, JP;

Inventors:

Teruyoshi Nawa, Kariya, JP;

Tomohiko Takeuchi, Nagoya, JP;

Toshihiro Takahara, Kariya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 35/157 (2006.01); B01D 35/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fluid filter includes a case in which an inflow path, an outflow path, and a drainage path are formed, a cap which is engaged with the case through axial rotation, a biasing device (a coil spring) which biases a filter element housed inside a casing constituted by the case and the cap toward the case side, a rotation restricting device (an abutting portion and a projecting portion) which restricts rotation of the filter element in a fastening direction when the cap is rotated relative to the case in the fastening direction, and a sealing member provided on an axial end surface side of the filter element, which seals the drainage path when the filter element is biased by the biasing device and rotation thereof is restricted by the rotation restricting device.


Find Patent Forward Citations

Nawa, Teruyoshi. (2010). Fluid filter and method of using same (U.S. Patent No. 7820044). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7820044

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