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:
Dec. 11, 2001

Filed:

Jun. 25, 1999
Applicant:
Inventors:

Charles Henry Berry, III, Cedar Falls, IA (US);

Gregory Matthew Ferris, Cedar Falls, IA (US);

Assignee:

Engineered Products Company, Waterloo, IA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/5143 ;
U.S. Cl.
CPC ...
B01D 3/5143 ;
Abstract

A low cost air filter restriction indicator gauge for use in conjunction with an internal combustion engine can be achieved by both simplifying individual part configuration and reducing overall part count. More specifically, a simplified design can be achieved by utilizing a one piece base cap which includes a locking extension and reset button integral therewith. By having this part injection moldable, it is easy to fabricate and lower in cost as a complex locking pin assembly can be eliminated. Further, the low cost device can be further enhanced by providing a two color visual indicator which displays one color when the device is in its reset position and a second color when the device is in its locked or set position.


Find Patent Forward Citations

Berry, III, Charles. (2001). Air filter restriction indicator gauge (U.S. Patent No. 6327902). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6327902

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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