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:
Apr. 20, 2021
Filed:
Sep. 24, 2020
Applicant:
Keith D. Olson, Deer Park, IL (US);
Inventor:
Keith D. Olson, Deer Park, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B 7/28 (2006.01); F16K 3/02 (2006.01); E02B 8/04 (2006.01); E02B 9/02 (2006.01);
U.S. Cl.
CPC ...
E02B 7/28 (2013.01); E02B 8/04 (2013.01); E02B 9/027 (2013.01); F16K 3/0209 (2013.01); F16K 3/0218 (2013.01);
Abstract
A gate valve for use in controlling the level of a dam has a first plate with an aperture on an upstream face of the dam and a movable plate on the upstream side of the fixed plate, with apertures sixed and dimensioned to operate as a scissors when the movable plate is urged in a linear motion parallel to fixed plate. One or more edges of the apertures in the plates are provided with a sharp edge or a serrate edge oriented to sever obstructing object present in the apertures when the valve is transitioning from an open position to a closed position.