Simon G Thomas

US Patent:

58494332, Dec 15, 1998

Filed:

Mar 10, 1997

Appl. No.:

8/813398

Inventors:

Ganesh Venugopal - Duluth GA
Anaba A. Anani - Lawrenceville GA
John Moore - Stone Mountain GA
Simon Thomas - Lawrenceville GA

Assignee:

Motorola, Inc. - Schaumuburg IL

International Classification:

H01M 1040

US Classification:

429190

Abstract:

An electrochemical cell (10) includes first and second electrodes (12) and (14) with an electrolyte system (26) disposed therebetween. The electrolyte system is fabricated of a blend of differing grades of a single polymer. One grade may be provided to, for example, absorb an electrolyte active species, while the second grade may be provided to enhance mechanical integrity of the system.

US Patent:

56400713, Jun 17, 1997

Filed:

Oct 10, 1995

Appl. No.:

8/544420

Inventors:

Francis P. Malaspina - Gainesville GA
Simon Thomas - Lawrenceville GA
Sathya S. Prasad - Duluth GA
Scott M. Garrett - Lawrenceville GA

International Classification:

H02J 904

US Classification:

318139

Abstract:

In a circuit having an electromechanical transducer, such as a motor (22), a control switch (24) is controlled by a control circuit (26) to connect the motor to, and disconnect from, a battery (12). When control switch opens, thereby disconnecting the motor from the battery, the momentum achieved by the motor tends keep the motor turning, causing the motor to behave like a generator. A switch network (28) connects a first capacitor (30), which is initially discharged, across the motor at the same time the control switch disconnects it from the battery. The momentum of the motor, and any attached mechanical system (32), generates a transient charge which is collected by the first capacitor. When the voltage produced by the collected charge reaches a peak, the switch network disconnects the first capacitor from the motor, reorients the first capacitor, and waits to apply the voltage to the motor. A charge pump connected between the first capacitor and the battery may be activated to transfer the collected charge back to the battery if the motor is not to be started for some time.

US Patent:

56269765, May 6, 1997

Filed:

Jul 24, 1995

Appl. No.:

8/506159

Inventors:

Gerald W. Blanton - Flowery Branch GA
Simon Thomas - Lawrenceville GA
Kenneth M. Massaroni - Plantation FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 1200

US Classification:

429 9

Abstract:

A flexible, conformal energy storage device (10) has a plurality of photovoltaic devices (40, 42, 44) formed integrally therewith. The energy source includes an anode, a cathode, and an electrolyte encapsulated between layers of oxygen and water impermeable sealing materials. The sealing materials also serve as the base upon which the photovoltaic devices are deposited. The anode and cathode of the photovoltaic devices are electrically coupled to the anode and the cathode of the energy storage device to provide a recharging current thereto.

US Patent:

55738699, Nov 12, 1996

Filed:

Apr 22, 1996

Appl. No.:

8/636110

Inventors:

B. Chester Hwang - Alpharetta GA
Jose M. Fernandez - Lawrenceville GA
Vernon Meadows - Lilburn GA
Simon Thomas - Lawrenceville GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 210

US Classification:

429 91

Abstract:

A modular battery pack (10) is described having several embodiments. In general, the modular battery pack has a battery cell cartridge (12), a circuit cartridge (14), and a housing (16). In conventional battery packs these three elements are combined into one single unit. The invention modularizes these components such that portions may be re-used and shared. This results in a more cost effective power system for a portable electrical or electronic device (40) since, once the battery cell or cells (48) have expired, they can be replaced without having to replace the other components, in particular the circuitry.

US Patent:

55343660, Jul 9, 1996

Filed:

Nov 22, 1995

Appl. No.:

8/561736

Inventors:

B. Chester Hwang - Alpharetta GA
Jose M. Fernandez - Lawrenceville GA
Vernon Meadows - Lilburn GA
Simon Thomas - Lawrenceville GA
Willard F. Amero - Flowery Branch GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 210

US Classification:

429 91

Abstract:

A modular battery pack (10) is described having several embodiments. In general, the modular battery pack has a battery cell cartridge (12), a circuit cartridge (14), and a housing (16). In conventional battery packs these three elements are combined into one single unit. The invention modularizes these components such that portions may be reused and shared. This results in a more cost effective power system for a portable electrical or electronic device (40) since, once the battery cell or cells (48) have expired, they can be replaced without having to replace the other components, in particular the circuitry.