Paul L Gottshall Deceased700 N Main St UNIT 268, Eureka, IL 61530

7065152, Jun 20, 2006

Oct 28, 2002

10/281254

Paul Gottshall - Washington IL, US
Mike Armstrong - Washington IL, US

Caterpillar Inc. - Peoria IL

H04B 15/00

375285, 307 101

A controller area network (CAN) data link is provided including a first node, a second node, and a transformer circuit connected between the first and second nodes to provide electrical isolation. The transformer circuit provides the requisite electrical isolation and is reliable under high temperatures.

7322743, Jan 29, 2008

Jul 25, 2005

11/187965

Bahman Gozloo - Peoria IL, US
Paul C. Gottshall - Washington IL, US

Caterpillar Inc. - Peoria IL

G01K 7/00

374170, 374163, 702130

A temperature measurement system is provided to measure temperatures using temperature sensors. The temperature measurement system may include a controller having a plurality of address lines, a sensor configured to provide a plurality of inputs, and a connector configured to accept the inputs from the sensor. The temperature measurement system may also include a first multiplexer coupled with at least one input from the sensor and including a plurality of selector lines, and a second multiplexer coupled with one or more other inputs from the sensor and including a plurality of selector lines. The selector lines of the second multiplexer may be respectively coupled to the address lines of the controller. The temperature measurement system may also include a selector logic device coupled between the selector lines of the first multiplexer and the address lines of the controller such that the at least one input coupled to the first multiplexer corresponds to a variable number of inputs from the one or more other inputs coupled to the second multiplexer.

7681778, Mar 23, 2010

Nov 20, 2007

11/943219

Paul C Gottshall - Peoria IL, US
Ernesto Nicanor Santillan Guerrero - Nuevo Laredo, MX

Caterpillar Inc. - Peoria IL

B23K 1/018
B23K 31/02

228103, 228119, 228191, 228264

A method for remanufacturing an electronic assembly includes removing a first portion of an assembly housing to expose an underside of an enclosed circuit assembly. One or more solder joints on the underside of the circuit assembly are associated with at least one component that is also affixed to a portion of the housing. The opened electronic assembly is lowered onto a desoldering fixture having a plurality of solder pots configured to encompass, and thus desolder, the solder joints associated with the component that is affixed to a portion of the housing. Once the affected solder joints are melted, the remaining portion of the housing and the component affixed thereto may be lifted away, exposing the top surface of the circuit assembly for analysis, repair, and or adjustment.

8096033, Jan 17, 2012

Nov 5, 2007

11/935211

Paul C Gottshall - Washington IL, US
Ulises Ramirez Wleschuver - Neuvo Laredo, MX

Caterpillar Inc. - Peoria IL

B23P 19/04
B23P 6/00

2940208, 2940203, 29762, 29854, 32475601

A method for remanufacturing an electronic assembly allows the assembly to be disassembled, tested and reassembled despite certain components being permanently affixed to a housing of the assembly. The electronic assembly includes a circuit assembly within the housing. During remanufacture, a first portion of the housing is removed to expose a first side of the circuit assembly and a second portion of the housing is removed to expose a second side of the circuit assembly. When removing the second portion of the housing, one of the components of the circuit assembly may also be removed. During remanufacture a connector assembly including a replacement component substantially similar to the removed component, and including one or more pins connected to the replacement component and situated to mate with one or more empty sockets of the circuit assembly is used to facilitate testing of the assembly.

5828261, Oct 27, 1998

Nov 13, 1996

8/747854

James A. Antone - Edwards IL
Paul C. Gottshall - Washington IL

Caterpillar Inc. - Peoria IL

H03K 1716

327387

In one aspect of the present invention a gate drive circuit is disclosed. The gate drive circuit includes a first voltage source, a power transistor, a first and second switching device, and a controller. The power transistor has a drain connected to the first voltage source and a source connected to a load. The first switching device is connected to the power transistor gate and biases the power transistor ON to transfer energy from the first voltage source to the load. The second switching device is connected to the power transistor gate and biases the power transistor OFF to block the transfer of energy from the first voltage source to the load. The controller is connected to the first and second switching device and controls the power transistor at a first state where the first switching device biases the power transistor ON, controls the power transistor at a second state where the second switching device biases the power transistor OFF and provides a signal path from the power transistor gate to ground, and controls the power transistor at a third state where the second switching device biases the power transistor OFF to protect the second switching device from short circuit voltages in response to the controller detecting a short circuit condition in the power transistor.

5714946, Feb 3, 1998

Apr 26, 1996

8/638456

Paul C. Gottshall - Washington IL
Steven R. McCoy - Washington IL
Paul M. Young - Peoria IL

Caterpillar Inc. - Peoria IL

G08B 2100

34087016

An apparatus for communicating with an electronic control module on an engine of a machine from a remote location is disclosed. The apparatus includes an electronic controller associated with a power supply on the electronic control module. A sensor is connected to the electronic controller for sensing an engine parameter indicative of the operating state of the engine. A communications interface for transmitting and receiving a communication signal is associated with the electronic controller. An ignition switch is connected to the power supply, such that when the ignition switch is in the off position, the electronic controller is powered down. The electronic controller is subsequently powered up if a communication signal is received from the remote location. This in turn allows a sensed engine parameter to be communicated to the remote location, and further allows machine information to be downloaded from the remote location to the electronic control module while the ignition switch remains in the off position.

5920004, Jul 6, 1999

May 13, 1997

8/855326

Paul C. Gottshall - Washington IL
Ricky L. Crebo - Washington IL

Caterpillar Inc. - Peoria IL

F02M 6500

73 136

A method of calibrating an injector driver system including an injector driver circuit, a logic device connected to an input line of the injector driver circuit, and an information storage device associated with the logic device, involves testing the injector driver circuit once assembled. A predetermined test is connected to the injector driver circuit. A pulse width modulated signal having a predetermined duty cycle is applied to the input line of the injector driver circuit and the corresponding current level through the test load is measured. A value indicative of the measured current level is stored in the information storage device for later retrieval during operation of the injector driver system.

5701870, Dec 30, 1997

Apr 15, 1996

8/632046

Paul C. Gottshall - Washington IL
Paul M. Young - Peoria IL

Caterpillar Inc. - Peoria IL

H01H 4732
F02D 4130

123490

A fuel injector control circuit is disclosed. The circuits can be used with a plurality of different fuel injectors and can be programmed to produce a plurality of different injector current waveforms. The control preferably includes a microprocessor with memory connected to a multiplexer and an application specific integrated circuit. The control can also be used to increase the current rise time of a specific injector current waveform.