Mark R Rayner

US Patent:

7054173, May 30, 2006

Filed:

May 7, 2003

Appl. No.:

10/430318

Inventors:

Mark Rayner - Houston TX, US
Benjamin A. Ta - Katy TX, US

Assignee:

Toshiba International Corporation - Houston TX

International Classification:

H02H 7/125

US Classification:

363 45, 363 53, 361 16

Abstract:

A circuit that includes a filter and a DC bus is provided that reduces the potential for failure of a second capacitor of the filter in the event a first capacitor shorts. The filter is electrically connected across the DC bus and includes serially connected capacitors and a capacitor fuse electrically connected in series with the capacitors. The capacitor fuse is adapted to open in the event a first capacitor of the series shorts in order to prevent failure of a second capacitor of the series. In one embodiment of the invention, a static power converter includes a pair of serially connected capacitors having a DC bus fuse serially connected therewith. In another embodiment of the invention, a filter connected across a DC bus includes a plurality of capacitor legs that each include a capacitor fuse serially connected to a plurality of serially connected capacitors.

US Patent:

D574332, Aug 5, 2008

Filed:

Jun 9, 2006

Appl. No.:

29/247322

Inventors:

Thomas J. Filban - Magnolia TX, US
Mark D. Rayner - Houston TX, US

Assignee:

Toshiba International Corp. - Houston TX

International Classification:

1303

US Classification:

D13162

US Patent:

7696647, Apr 13, 2010

Filed:

Sep 15, 2004

Appl. No.:

10/941026

Inventors:

Mark D Rayner - Houston TX, US
Rajesh Gopinath - Houston TX, US
Rahul Khopkar - Lubbock TX, US

Assignee:

Toshiba International Corp. - Houston TX

International Classification:

H01H 83/00
H02H 7/08
H02H 3/00

US Classification:

307125, 307132 E, 307143, 318377, 318378, 361 30, 361 64, 361 68, 361 78

Abstract:

A coupling node for regulating the current flow between two or more drives is described. The coupling node may include an interconnect circuit in communication with the drives for selectively opening the connection between the drives. A sensor circuit in communication with the drives measures one or more electrical properties of the drives or between the drives. A sensor circuit actuates the interconnect circuit in response to the measured electrical property of the two or more drives meeting predetermined criteria. In operation, when an electrical property of the drives, such as the current flowing between the drives, meets a predetermined criteria, such as an short circuit or current overload, as indicated by the sensor circuit, the controller actuates the interconnect circuit to open the connection between the drives.

US Patent:

8639474, Jan 28, 2014

Filed:

Aug 31, 2010

Appl. No.:

12/872509

Inventors:

Mohammed Arefeen - Houston TX, US
Mark Rayner - Houston TX, US

Assignee:

Toshiba International Corporation - Houston TX

International Classification:

G05B 23/02
G07C 3/00

US Classification:

702183, 340524, 340532, 340539

Abstract:

A portable diagnostic module may use a standardized physical interface to connect to a series of sensors. The module can be configured to accept different types of sensor outputs, and to collect the sensed data for use in local or networked analysis to help identify errors and faults before they occur.

US Patent:

59734655, Oct 26, 1999

Filed:

Apr 28, 1998

Appl. No.:

9/066974

Inventors:

Mark D. Rayner - Houston TX

Assignee:

Toshiba International Corporation - Houston TX

International Classification:

F04B 4910

US Classification:

318459

Abstract:

A method for restarting a motor of a submersible pump after a power interruption is disclosed. The system first detects when the power is turned back on to the system. A control means then samples signals sent back from the unpowered motor and determines the frequency and phase sequence of the signals. The speed and direction of operation of the motor are then determined from the determined frequency and phase sequence. A first pulse width modulation waveform is then applied to the motor matching the determined speed and direction of the motor. Finally, the output frequency of the waveform can be adjusted to adjust the speed and direction of operation of the motor until the motor reaches a desired speed and direction of operation.

US Patent:

20200321824, Oct 8, 2020

Filed:

Apr 3, 2020

Appl. No.:

16/839659

Inventors:

- Houston TX, US
Yao Duan - Houston TX, US
Yu Liu - Houston TX, US
Mark Rayner - Houston TX, US

International Classification:

H02K 5/132
F04C 13/00
F04B 49/06
E21B 43/12
H02P 6/08
H02P 25/022
F04D 15/00

Abstract:

A method for controlling a permanent magnet (PM) synchronous motor in an ESP application is provided. A load angle of the PM motor is estimated. A voltage adjustment value is determined for the PM motor based at least on the estimated load angle of the PM motor. A voltage to be applied to the PM motor is determined based on the voltage adjustment value.

US Patent:

20190277298, Sep 12, 2019

Filed:

Mar 12, 2019

Appl. No.:

16/299639

Inventors:

- Houston TX, US
David Liu - Houston TX, US
Mark Douglas Rayner - Houston TX, US

International Classification:

F04D 27/00
F04D 15/00
F04D 17/10

Abstract:

A demand-based load balancing function may be provided by one or more drive controllers that takes advantage of the affinity laws to linearize the control of the variable of interest (e.g., flow, pressure, etc.). Each drive controller may be set up by the user simply inputting a few values into the drive controller. Based on the inputs, the drive controllers may interpolate control points using an assumed linear relationship between the variable to be controlled (e.g., pressure) and the current driven to the pump. Feedback data from the system may be used to continually update the drive controllers so as to potentially allow them to better balance power usage to each pump.

US Patent:

20170028864, Feb 2, 2017

Filed:

Jul 29, 2015

Appl. No.:

14/812581

Inventors:

- Houston TX, US
Mark Douglas Rayner - Houston TX, US

International Classification:

B60L 11/18
H02J 7/35

Abstract:

Present embodiments of the disclosure are directed to a zero-footprint charging station for use with vehicles having quick-charge batteries. The disclosed embodiments enable the “quick-charge” power conversion equipment to disappear entirely into a passenger station structure. The passenger station structure may include a structural component of a bus stop (or other vehicle station) that is designed to accommodate passengers waiting to board the bus (or other transportation vehicle). By housing the power conversion electronics within a larger structure that serves a purpose at the vehicle station, the system may enable larger amounts of power electronics to be incorporated into a relatively strong and stable structure conforming to a desired size for the area (e.g., bus stop).