Robert L Parrish

US Patent:

6652657, Nov 25, 2003

Filed:

Jan 5, 2001

Appl. No.:

09/754594

Inventors:

Robert B. Parrish - Waterford MI
Christopher T. Shallow - West Hartford CT

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C25D 504

US Classification:

134 1, 134 18, 134 2212, 205151

Abstract:

A method for performing electrochemical processes using an array of dedicated cells is disclosed. Various construction details and steps of the method are developed which promote, in one embodiment, automating the method of performing the processes and cleaning the articles between electrochemical processes. In one embodiment, the array of dedicated cells includes rinsing cells which have a rinse chamber adapted to receive an article and flow rinse fluid such that the fluid impinges against the article at predetermined locations.

US Patent:

7516748, Apr 14, 2009

Filed:

Nov 24, 2003

Appl. No.:

10/720610

Inventors:

Robert B. Parrish - Waterford MI, US
Christopher T. Shallow - West Hartford CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

C25F 1/00

US Classification:

134166R, 204198, 204224 R

Abstract:

A method for performing electrochemical processes using an array of dedicated cells is disclosed. Various construction details and steps of the method are developed which promote, in one embodiment, automating the method of performing the processes and cleaning the articles between electrochemical processes. In one embodiment, the array of dedicated cells includes rinsing cells which have a rinse chamber adapted to receive an article and flow rinse fluid such that the fluid impinges against the article at predetermined locations.

US Patent:

20220252146, Aug 11, 2022

Filed:

Feb 9, 2021

Appl. No.:

17/171897

Inventors:

- Detroit MI, US
Daryl A. Wilton - Macomb MI, US
Clinton E. Carey - Highland MI, US
Robert B. Parrish - White Lake MI, US
William M. Modisett - Waterford MI, US
Keith W. Noser - Birmingham MI, US
Mark D. Kieliszewski - Clarkston MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F16H 57/04
F04C 11/00
F04C 15/00
F16H 57/02

Abstract:

A transfer case pump includes an oil pump, a cover assembly, and a torque transfer mechanism. The oil pump has a pump shaft, and is configured to pressurize a lubricant in response to a rotation of the pump shaft. The pump shaft rotates around a pump axis. The pump axis is parallel to a rear axis of a rear shaft. The pump axis is offset from the rear axis. The cover assembly has a channel configured to transfer the lubricant from the oil pump to the rear shaft. The cover assembly extends around the rear shaft and around the pump shaft. The torque transfer mechanism is configured to transfer a torque from the rear shaft to the pump shaft.

US Patent:

20230113348, Apr 13, 2023

Filed:

Oct 12, 2021

Appl. No.:

17/450563

Inventors:

- Detroit MI, US
Robert Benson Parrish - White Lake MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F04C 29/00
F04C 2/10

Abstract:

Systems and methods are provided for pump systems that deliver optimized performance and efficiency. A method includes selecting a pump for the pump system. A maximum operating speed of the pump is determined, and its torque requirements are evaluated. A motor is selected to meet the torque requirements and a speed target is set for the motor. A speed reducer is sized for operation of the motor at the speed target and operation of the pump below the maximum speed, and the motor is coupled with the pump through the speed reducer.

US Patent:

20190011046, Jan 10, 2019

Filed:

Jul 5, 2017

Appl. No.:

15/641411

Inventors:

- Detroit MI, US
Robert Parrish - White Lake MI, US

International Classification:

F16H 61/4061
F16H 61/30
F04C 14/24
F04C 14/04

Abstract:

A hydraulic assembly includes a pump that is bi-rotationally driven by an output shaft of a transmission or transaxle and a hydraulic circuit that includes a pressure actuated control valve and a plurality of check valves. The check valves are arranged so that, regardless of the direction of rotation of the pump, the suction side of the pump is always in fluid communication with a sump and the pressure side of the pump is always in fluid communication with one of the inlet ports of the spool valve. In one direction of rotation of the pump, pressure in a line is supplied to a control port of a control valve to translate a control element to connect an outlet of the pump to the fluid system of the transmission or transaxle. In the other direction of rotation, no pressure is supplied to the control port and the control element, biased by a spring, connects the other outlet of the pump to the fluid system of the transmission.

US Patent:

20180149051, May 31, 2018

Filed:

Nov 28, 2016

Appl. No.:

15/361734

Inventors:

- DETROIT MI, US
Robert Benson Parrish - White Lake MI, US

International Classification:

F01M 11/00
H02P 1/16

Abstract:

A drive unit, method, and control system are provided that warm drive unit fluid in a drive unit having a main pump, a scavenge pump, and an electric motor for powering an axle of a vehicle. The control system and method are configured to fill a main sump of the drive unit with drive unit fluid to a predetermined fill level. In a warm-up mode, the method and control system operate the electric motor to heat the drive unit fluid within the main sump while the vehicle is stationary and the electric motor is at least partially disposed in the drive unit fluid within the main sump. Further in the warm-up mode, the method and control system are configured to operate the scavenge pump to pump the drive unit fluid from the main sump into an auxiliary reservoir after the drive unit fluid has been heated by the electric motor.

US Patent:

20170248222, Aug 31, 2017

Filed:

Feb 26, 2016

Appl. No.:

15/055131

Inventors:

- Detroit MI, US
Robert Benson Parrish - White Lake MI, US
James D. Hendrickson - Oxford MI, US

International Classification:

F16H 57/04

Abstract:

A motor vehicle vacuum driven hydraulic balance system includes a housing. A shaft rotatably supported in the housing has a longitudinal bore to deliver oil flow to a plurality of ports created in the shaft. A vacuum flow passage communicates with both the longitudinal bore and an oil sump. A first delivery passage is created in a portion of the housing, the first delivery passage in direct communication with the longitudinal bore. An electrical oil pump pumps oil from the oil sump to the longitudinal bore through the first delivery passage. Axial rotation of the shaft creates a partial vacuum in the longitudinal bore acting to vacuum drag oil from the oil sump through the vacuum flow passage to the longitudinal bore in addition to a volume of the oil delivered to the longitudinal bore by the electrical oil pump.