21
Carl A Kemner: System and method for managing access to a resource shared by a plurality of mobile machines. Caterpillar, James R Yee, May 25, 1999: US05906646 (19 worldwide citation)

A system and method for managing access to a resource by at least one mobile machine including a queue manager adapted to generate a queue position request signal as a mobile machine approaches the resource and determine if access to the resource is unsuccessful. The queue manager also generates a a ...


22
Mark R Hawkins, Carl A Kemner, Craig L Koehrsen: System and method for managing access of a fleet of mobile machines to a resource having multiple entry points. Caterpillar, James R Yee, W Bryan McPherson III, April 27, 1999: US05897595 (12 worldwide citation)

The invention is a system and method for managing a resource having multiple entry points. Each mobile machine includes a queue manager for generating a queue position request upon approach to the resource. A resource manager establishes queues, one for each entry point to the resource, to control a ...


23
Jeffrey A Livingston, Carl A Kemner, Chuong Q Dam, Jack R Davis, Larry C Clemens: Testing apparatus for a multilayer piezoelectric actuator. Caterpillar, David M Masterson, April 12, 1994: US05301558 (12 worldwide citation)

A testing apparatus determines the piezoelectric properties associated with the performance of a multilayer ceramic actuator. The actuator has a predetermined length, L.sub.1, and a predetermined cross sectional area, A. The actuator includes an axis and a plurality of piezoelectric elements with el ...


24
Douglas W Friedrich, Carl A Kemner, N Keith Lay, Joel L Peterson: Antenna mounting apparatus. Caterpillar, Stephen L Noe, April 25, 1995: US05410325 (2 worldwide citation)

An apparatus for mounting an antenna assembly to an elevationally movable portion of a vehicle dump bed includes a mountable support member having first and second end portions. The first end portion is fixed to the vehicle bed. The antenna assembly has an active element connected to a first end of ...


25
Ronald O Groth, Carl A Kemner, N Keith Lay: Method and apparatus to detect change in work tool. Caterpillar, November 24, 2005: US20050261799-A1

Method and apparatus to detect a change in a work tool with an engaging portion. A control system senses a change in the relationship between the engaging portion of the work tool and at least one of the work tool and another engaging portion of the work tool. If the change is greater than a predete ...