James G Nickels

US Patent:

D645480, Sep 20, 2011

Filed:

Nov 23, 2009

Appl. No.:

29/350777

Inventors:

Francis D. Theobalds - London, GB
James G. Nickels - McGregor TX, US
Tommie L. Craven - Belton TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

1503

US Classification:

D15 28

US Patent:

D645481, Sep 20, 2011

Filed:

Nov 23, 2009

Appl. No.:

29/350780

Inventors:

Francis D. Theobalds - London, GB
James G. Nickels - McGregor TX, US
Tommie L. Craven - Belton TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

1503

US Classification:

D15 28

US Patent:

8500207, Aug 6, 2013

Filed:

Dec 14, 2010

Appl. No.:

12/967110

Inventors:

James G. Nickels - McGregor TX, US
Tommie L Craven - Belton TX, US
Lauritz P. Pillers - McGregor TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

E21C 31/12

US Classification:

299 69, 299100, 173185

Abstract:

A rock claw is provided for a demolition hammer. The rock claw may be a separate component attachable to the external surface of the hammer housing. The rock claw may include a first portion with a first distal end and a first proximal end and a second portion with a second distal end and a second proximal end. The first proximal end is joined to the second proximal end to form an elbow and the second distal end having a first leg spaced apart from a second leg.

US Patent:

D643049, Aug 9, 2011

Filed:

Dec 14, 2010

Appl. No.:

29/380944

Inventors:

James G. Nickels - McGregor TX, US
Tommie L Craven - Belton TX, US
Lauritz P. Pillers - McGregor TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

1503

US Classification:

D15 28

US Patent:

20120145424, Jun 14, 2012

Filed:

Dec 14, 2010

Appl. No.:

12/967122

Inventors:

James G. Nickels - McGregor TX, US
Tommie L. Craven - Belton TX, US
Lauritz P. Pillers - McGregor TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B25D 17/00
B25F 5/02
B23P 17/00

US Classification:

173 90, 2940203

Abstract:

A demolition hammer is provided that includes a housing that is reversible and a plurality of interchangeable wear plates. The demolition hammer may include a housing a housing having a first wall and a second wall opposite the first wall, and a power cell disposed within the housing, the power cell having a front face, wherein the housing is reversible such that the housing can be used with the power cell in a first orientation in which the front face faces the first wall and a second orientation in which the front face faces the second wall.

US Patent:

20120145426, Jun 14, 2012

Filed:

Dec 14, 2010

Appl. No.:

12/967130

Inventors:

James G. Nickels - McGregor TX, US
Tommie L. Craven - Belton TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B25D 17/24

US Classification:

173210

Abstract:

A demolition hammer is provided that may include a housing having a distal end, a power cell disposed in the housing, an end plate attached to the distal end of the housing, and a damper disposed in the housing between the power cell and the end plate, wherein the damper is spaced apart from the power cell by a gap. The damper may also support and align a plurality of wear plates interposed between the housing and power cell. The damper may have generally rectangular first portion having a planar upper surface and a planar lower surface generally parallel to the upper surface and a generally circular second portion extending from the lower surface, wherein the first portion and the section portion define a central through bore.

US Patent:

20120152581, Jun 21, 2012

Filed:

Dec 18, 2010

Appl. No.:

12/972447

Inventors:

Tommie L. Craven - Belton TX, US
James G. Nickels - McGregor TX, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

B25D 17/24
B23P 6/00

US Classification:

1731621, 2940208

Abstract:

A demolition hammer may include a housing having a distal end and a proximal end, a power cell disposed in the housing along a longitudinal axis and a side buffer positioned to support the power cell in the housing, wherein the housing forms a first retaining structure that prevents axial movement of the side buffer toward the proximal end. The housing may also form a second retaining structure that prevents inward radial movement of the side buffer and a third retaining structure that prevents outward radial movement of the side buffer.

US Patent:

59158379, Jun 29, 1999

Filed:

May 27, 1997

Appl. No.:

8/863756

Inventors:

Eric A. Brown - Belvue KS
Howard T. Koshi - Redmond WA
James G. Nickels - Manhattan KS

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

E02F 396

US Classification:

37468

Abstract:

A combination of an attachment, a power device and a quick-disconnect coupling device for attaching a variety of attachments to a stick includes a pair of brackets attached to the attachment, a frame assembly being attached to the power device and an activation device. The actuation device having a plurality of linkage members being positioned in a locked position when the power device is attached to the attachment and being in an open position when not being attached to the attachment. The linkage members including a latch having a pair of ends being spaced apart and in the locked position being in contacting relationship with the each of the pair of brackets.