Francis Eric Fortner

20170082437, Mar 23, 2017

Sep 21, 2015

14/859972

- Peoria IL, US
Stephen P. Amborski - China Spring TX, US
Francis E. Fortner - Woodway TX, US
Bradley K. Hamrick - Moody TX, US

Caterpillar Inc. - Peoria IL

G01C 15/10
B25D 9/00

A plumb bob assembly includes a vertical bar that includes an upper end and a lower end. The plumb bob assembly further includes a plumb bob coupled to the lower end of the vertical bar. The plumb bob assembly further includes a cross plate coupled to the vertical bar. The cross plate is located near the upper end and extends perpendicularly across the vertical bar. The cross plate includes a front end and a back end. The plumb bob assembly also includes a pair of horizontal reference plates. Each horizontal reference plate includes a reference end, each of the reference ends are configured to align with the front end or the back end of the cross plate.

20140208575, Jul 31, 2014

Jan 28, 2013

13/751975

- Peoria IL, US
Francis Eric Fortner - Woodway TX, US
Stephen Amborski - China Spring TX, US
Dimitar Dostinov - Fort Worth TX, US

CATERPILLAR INC. - Peoria IL

F16B 41/00
E02F 5/30

2952502, 411103

A hydraulic hammer may include a power cell adapted to reciprocally drive a piston along an axis. The piston may, in turn, drive a hammer tool. A power cell and housing may be axially secured together by a plurality of tie rods and nuts secured to ends of the tie rods, and the housing may include open-sided pockets for accommodating the nuts. Each pocket may include a cavity that accommodates an extension of the tie rod or a specially formed nut to minimize movement of the nut in the direction of the pocket opening and thereby minimize bending of the tie rod. Engaging the back of the nut with the inside of the nut pocket further reduces the opportunity for the nut to rotate in the nut pocket as a result of force applied to the nut by the tie rod.