Robert A Ray

US Patent:

6409478, Jun 25, 2002

Filed:

Feb 26, 1999

Appl. No.:

09/258833

Inventors:

William B. Carnes - Milwaukie OR
Milton K. Leonard - Lake Oswego OR
Robert B. Ray - Vancouver WA

Assignee:

Roper Holdings, Inc. - Wilmington DE

International Classification:

F04D 904

US Classification:

417200

Abstract:

A self-priming centrifugal pump including a supplementary vacuum pump and a float valve. The vacuum pump serves to draw liquid to the pump for priming and the float valve shut of flow to the vacuum pump when liquid reaches a predetermined level to prevent entry of liquid into the vacuum pump. In some embodiments the float valve includes an o-ring valve seal and the vacuum pump includes an oil delivery system to distribute oil from an oil reservoir to improve lubrication.

US Patent:

6616427, Sep 9, 2003

Filed:

May 15, 2002

Appl. No.:

10/147144

Inventors:

William B. Carnes - Milwaukie OR
Milton K. Leonard - Lake Oswego OR
Robert B. Ray - Vancouver WA

Assignee:

Roper Holdings, Inc. - Wilmington DE

International Classification:

F04B 4504

US Classification:

417550, 184 131

Abstract:

A self-priming centrifugal pump including a supplementary vacuum pump and a float valve. The vacuum pump serves to draw liquid to the pump for priming and the float valve shut of flow to the vacuum pump when liquid reaches a predetermined level to prevent entry of liquid into the vacuum pump. In some embodiments the float valve includes an o-ring valve seal and the vacuum pump includes an oil delivery system to distribute oil from an oil reservoir to improve lubrication.

US Patent:

6783322, Aug 31, 2004

Filed:

Apr 23, 2002

Appl. No.:

10/131311

Inventors:

Robert B. Ray - Clackamas OR
Joseph H. Reidy - Portland OR
Robert A. McCann - Tigard OR
Steven J. Schoebrun - Tigard OR

Assignee:

Roper Holdings, Inc. - Wilmington DE

International Classification:

F04D 2910

US Classification:

415112, 415231

Abstract:

A pump system, including an impeller and an impeller shaft, which has one end secured to the impeller and another end that may be coupled to a motor to drive the impeller. The pump system further includes a substantially liquid-proof barrier which has an opening through which the impeller shaft extends. The opening in the barrier is sealed with a shaft sealing system that includes a supply chamber fluidly coupled with a cavity. The cavity surrounds, and is at least partially bounded by, the impeller shaft. The shaft sealing system further includes a pressure mechanism that is configured to pressurize lubrication matter contained within the supply chamber and cavity, so as to inhibit liquid from passing along the impeller shaft through the cavity and thereby penetrating the liquid-proof barrier. The pressure mechanism is further configured to vary pressure of the lubrication matter based on atmospheric pressure surrounding the pump system.

US Patent:

7019995, Mar 28, 2006

Filed:

Nov 15, 2003

Appl. No.:

10/713184

Inventors:

Robert Niemand - Vancouver WA, US
Duane Koehler - Vancouver WA, US
Robert Ray - Corbett OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H02M 3/24

US Classification:

363 97, 363 2101, 323284, 323351

Abstract:

A power supply of one embodiment of the invention is disclosed that includes a conversion mechanism and a feedback mechanism. The conversion mechanism is to control conversion of a first direct current (DC) signal from to a second DC signal provided to an electronic device by switching the first DC signal to vary the second DC signal. The feedback mechanism is to cause the switching control mechanism to operate in a nominal-power mode or a reduced-power mode according to a control signal received from the electronic device. The conversion mechanism is caused in the reduced-power mode to lessen at least one of the duty cycle and the frequency at which the first DC signal is switched until the voltage of the second DC signal decays to a first voltage level.

US Patent:

7044571, May 16, 2006

Filed:

Oct 28, 2003

Appl. No.:

10/695508

Inventors:

Glenn Michael Smith - Vancouver WA, US
Robert James Ray - Corbett OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 29/38

US Classification:

347 10

Abstract:

In an implementation of power supply adjustment, a power supply generates an output to a powered device that generates a control signal which is input to an adjustment circuit that generates a difference signal to adjust the output of the power supply.

US Patent:

RE39813, Sep 4, 2007

Filed:

Oct 8, 2004

Appl. No.:

10/962257

Inventors:

William B. Carnes - Milwaukie OR, US
Milton K. Leonard - Lake Oswego OR, US
Robert B. Ray - Vancouver WA, US

Assignee:

Roper Holdings, Inc. - Wilmington DE

International Classification:

F04D 9/04

US Classification:

417200

Abstract:

A self-priming centrifugal pump including a supplementary vacuum pump and a float valve. The vacuum pump serves to draw liquid to the pump for priming and the float valve shut of flow to the vacuum pump when liquid reaches a predetermined level to prevent entry of liquid into the vacuum pump. In some embodiments the float valve includes an o-ring valve seal and the vacuum pump includes an oil delivery system to distribute oil from an oil reservoir to improve lubrication.

US Patent:

7352085, Apr 1, 2008

Filed:

Aug 12, 2003

Appl. No.:

10/639068

Inventors:

Robert Ray - Corbett OR, US
Ron Juve - Brush Prairie WA, US
Roger N. Switzer - Vancouver WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H01H 47/00
B41J 29/38

US Classification:

307125, 347 5

Abstract:

A mechanism of one embodiment of the invention is disclosed that disconnects an electronic device from a power source includes a user-actuable switch, an electronically controllable switch, and a feedback mechanism. The electronically controllable switch couples the power source to the electronic device. The feedback mechanism turns on and off the electronically controllable switch in response to actuation of the user-actuable switch.

US Patent:

7800253, Sep 21, 2010

Filed:

Dec 21, 2003

Appl. No.:

10/743230

Inventors:

Nikholas Hubbard - Vancouver WA, US
Robert Niemand - Vancouver WA, US
Robert Ray - Camas WA, US
Ron Juve - Brush Prairie WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H01H 9/54

US Classification:

307140

Abstract:

A system of an embodiment of the invention is disclosed that includes an interconnect, an electronic device, and a power supply. The interconnect is to carry direct current (DC). The electronic device is connectable to the interconnect to receive DC, and has a communication circuit to transmit signals over the interconnect. The power supply is connectable to the interconnect to provide the DC to the electronic device, and has a decoder circuit to decode the signals received over the interconnect from the electronic device.