Robert B Emrich

US Patent:

6986216, Jan 17, 2006

Filed:

Apr 30, 2003

Appl. No.:

10/425606

Inventors:

Robert K. Emrich - Tigard OR, US
Terry L. Briscoe - Portland OR, US

Assignee:

Esco Corporation - Portland OR

International Classification:

E02F 9/28

US Classification:

37450, 37455, 37454

Abstract:

A wear assembly for attaching wear members to a lip of an excavator includes a wear member, a boss and a lock. The lip includes an inner face, an outer face, a digging edge and a series of through-holes spaced rearward of the digging edge. The bosses are each fixed to a face of the lip at a position rearward of the through-holes. The wear members each include slots to receive the boss adjacent their rear ends, and openings for receiving the locks at a position forward of the bosses. The openings are aligned with the through-holes in the lip. The lock includes a wedge and spool arrangement.

US Patent:

7178274, Feb 20, 2007

Filed:

Sep 22, 2003

Appl. No.:

10/665358

Inventors:

Robert K. Emrich - Tigard OR, US

Assignee:

Esco Corporation - Portland OR

International Classification:

E02F 9/28

US Classification:

37453, 37457, 37458, 4033744

Abstract:

A coupling arrangement for securing two separable components in an excavating operation includes a wear component, a base component and a lock. The lock has a body having a configuration adapted to be received in a hole in the base component, and a rotatable locking member. The locking member includes a flange that is movable between a locking position wherein the flange holds the lock in the assembly and a release position wherein the flange permits the lock to be removed from the assembly. In the release position, the flange sets within the axial extension of the outline of the body. In the locking position, at least part of the flange sets outside the axial extension of the outline of the body. In one construction, the rotation of the locking member to the locking position tightens the fit of the wear component on the base component.

US Patent:

7299570, Nov 27, 2007

Filed:

Sep 14, 2005

Appl. No.:

11/226095

Inventors:

Robert K. Emrich - Tigard OR, US
Terry L. Briscoe - Portland OR, US

Assignee:

Esco Corporation - Portland OR

International Classification:

E02F 9/28

US Classification:

37455, 37451, 37456

Abstract:

A wear assembly for attaching a wear member to a support structure that includes a wear member and a lock. The wear member includes a pair of legs to straddle the support structure, each with a hole that aligns with a hole in the support structure for receiving a lock to hold the wear member in place. Each hole includes a recess with an engagement surface facing generally away from the support structure for receiving portions of the lock. The lock includes a wedge provided with a thread formation that threadedly engages a second thread formation in the aligned holes so that rotation of the wedge axially drives the wedge.

US Patent:

7640685, Jan 5, 2010

Filed:

Sep 8, 2006

Appl. No.:

11/518063

Inventors:

Robert K. Emrich - Tigard OR, US

Assignee:

Esco Corporation - Portland OR

International Classification:

E02F 9/28

US Classification:

37457, 37453

Abstract:

A coupling arrangement for securing two separable components in an excavating operation includes a wear component, a base component and a lock. The lock has a body having a configuration adapted to be received in a hole in the base component, and a rotatable locking member. The locking member includes a flange that is movable between a locking position wherein the flange holds the lock in the assembly and a release position wherein the flange permits the lock to be removed from the assembly. In the release position, the flange sets within the axial extension of the outline of the body. In the locking position, at least part of the flange sets outside the axial extension of the outline of the body. In one construction, the rotation of the locking member to the locking position tightens the fit of the wear component on the base component.

US Patent:

RE43693, Oct 2, 2012

Filed:

Oct 11, 2011

Appl. No.:

13/270475

Inventors:

Robert K. Emrich - Tigard OR, US

International Classification:

E02F 9/26

US Classification:

37457, 37453

Abstract:

A coupling arrangement for securing two separable components in an excavating operation includes a wear component, a base component and a lock. The lock has a body having a configuration adapted to be received in a hole in the base component, and a rotatable locking member. The locking member includes a flange that is movable between a locking position wherein the flange holds the lock in the assembly and a release position wherein the flange permits the lock to be removed from the assembly. In the release position, the flange sets within the axial extension of the outline of the body. In the locking position, at least part of the flange sets outside the axial extension of the outline of the body. In one construction, the rotation of the locking member to the locking position tightens the fit of the wear component on the base component.

US Patent:

49659456, Oct 30, 1990

Filed:

Feb 10, 1989

Appl. No.:

7/309309

Inventors:

Robert K. Emrich - Portland OR

Assignee:

ESCO Corporation - Portland OR

International Classification:

E02F 928

US Classification:

37142R

Abstract:

An excavating tooth having a socket-equipped point mounted on an adapter nose and secured with a vertical pin on one side of the nose, the nose being grooved for receipt of the pin and equipped with a resilient keeper extending transversely of the point length, the point having a least one side wall extending rearwardly beyond the socket, the side wall having integral, vertically spaced apart lug portions having forwardly facing surfaces bearing against the pin, the nose groove providing a rearwardly facing surface bearing against the pin intermediate the lug bearing surfaces.

US Patent:

48115053, Mar 14, 1989

Filed:

Feb 16, 1988

Appl. No.:

7/155892

Inventors:

Robert K. Emrich - Portland OR

Assignee:

ESCO Corporation - Portland OR

International Classification:

E02F 928

US Classification:

37142R

Abstract:

An excavating tooth assembly including an adapter, a point equipped with rearwardly projecting tongues, and locking means including a vertical pin external of the adapter nose held in place by a shrouded spring loaded plug disposed perpendicularly to the line of mounting the point on the adapter, the pin having arcuate front and back surfaces for wedging engagement with laterally projecting ears on the nose and a laterally projecting lug on a point tongue.

US Patent:

43173004, Mar 2, 1982

Filed:

Dec 29, 1980

Appl. No.:

6/220283

Inventors:

Robert K. Emrich - Portland OR
William H. Prather - Portland OR
John M. Burkhart - Portland OR

Assignee:

ESCO Corporation - Portland OR

International Classification:

E02F 928

US Classification:

37142R

Abstract:

An earth working tooth with wear cap wherein the wear cap has a closed forward end with horizontally extending side wings to mate with longitudinal side grooves of the adapter, the forward end being equipped with forwardly extending side projections to defer wear which would jeopardize the wings and grooves and simultaneously promote build-up of earth to protect the releasable lock between the tooth point and adapter.