Michael J Weeks

US Patent:

20130233955, Sep 12, 2013

Filed:

Mar 7, 2013

Appl. No.:

13/789031

Inventors:

Michael R. Weeks - Portland OR, US
David M. Graf - Scappoose OR, US
Christopher M. Carpenter - Tualatin OR, US

Assignee:

ESCO Corporation - Portland OR

International Classification:

B02C 13/28

US Classification:

2411891, 241197

Abstract:

Shredder hammers having first and second major surfaces on opposing sides, and a circumferential edge. The hammer includes a mounting portion and a working portion. The mounting portion defines a mounting aperture that extends from the first major surface to the second major surface, and is configured to receive a hammer mounting pin. The working portion includes at least one recess in at least one of the first and second major surfaces with opposed walls that extend away from a distal portion of the circumferential edge. The hammers are used in shredding systems for shredding material.

US Patent:

20180085758, Mar 29, 2018

Filed:

Nov 28, 2017

Appl. No.:

15/824705

Inventors:

- Portland OR, US
Michael R. Weeks - Portland OR, US
John P. Hoice - Vancouver WA, US
Daniel R. Morrow - Portland OR, US
Terry L. Briscoe - Portland OR, US
Christopher M. Carpenter - Tualatin OR, US

International Classification:

B02C 13/28
B02C 13/04
B02C 13/284

Abstract:

Shredder hammers having first and second major surfaces on opposing sides, and a circumferential edge. A mounting portion includes a mounting hole that extends from the first major surface to the second major surface, and is configured to receive a hammer mounting pin for mounting in a reducing system. The circumferential edge includes a primary impact face to initially impact materials to be reduced and a wear edge to subsequently crush and shear the material against a wall of the equipment. The hammer is biased forward on the pin to admit more material to be crushed between the wear edge and the grates.

US Patent:

20160008819, Jan 14, 2016

Filed:

Jul 13, 2015

Appl. No.:

14/798373

Inventors:

- Portland OR, US
Casey E. Springer - Portland OR, US
Michael R. Weeks - Portland OR, US

International Classification:

B02C 13/284
B02C 13/04

Abstract:

Discharge grate components for reducing machines including stops to inhibit pokers within the grate so that the pokers are not ejected from the grate with a high velocity.

US Patent:

20140151475, Jun 5, 2014

Filed:

May 17, 2013

Appl. No.:

13/897340

Inventors:

- Portland OR, US
Michael R. Weeks - Portland OR, US
John P. Hoice - Vancouver WA, US
Daniel R. Morrow - Portland OR, US
Terry L. Briscoe - Portland OR, US
Christopher M. Carpenter - Tualatin OR, US

International Classification:

B02C 13/28

US Classification:

241 27, 241195, 241197, 241194

Abstract:

Shredder hammers having first and second major surfaces on opposing sides, and a circumferential edge. A mounting portion includes a mounting hole that extends from the first major surface to the second major surface, and is configured to receive a hammer mounting pin for mounting in a reducing system. The circumferential edge includes a primary impact face to initially impact materials to be reduced and a wear edge to subsequently crush and shear the material against a wall of the equipment. The hammer is biased forward on the pin to admit more material to be crushed between the wear edge and the grates.