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:
Jul. 30, 2019

Filed:

Jan. 16, 2017
Applicant:

Liberty Pumps, Inc., Bergen, NY (US);

Inventor:

Donald M. Pohler, North Chili, NY (US);

Assignee:

Liberty Pumps, Inc., Bergen, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 7/04 (2006.01); B02C 18/00 (2006.01); F04D 13/08 (2006.01); F04D 29/22 (2006.01);
U.S. Cl.
CPC ...
F04D 29/2288 (2013.01); B02C 18/0092 (2013.01); F04D 7/045 (2013.01); F04D 13/086 (2013.01); B02C 2201/063 (2013.01);
Abstract

A cutting assembly and a grinder pump including the cutting assembly are disclosed. The cutting assembly includes a cutting plate that has a plurality of cutting ports with cutting edges that are distributed over a range of radial locations of the plate. The cutting edges of the cutting ports define a series of cutting regions of the cutting blades of a rotary cutter that operate in a shearing action with the cutter plate. The cutting action by the blades of the rotary cutter is distributed over nearly the entire lengths of the cutting edges of the cutting blades, thereby distributing the wear on the cutting blades evenly, and extending cutting assembly life.


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