Thomas Allen Richards

US Patent:

6698974, Mar 2, 2004

Filed:

Dec 11, 2001

Appl. No.:

10/015100

Inventors:

George Codina - Gardena CA
Dean R. Potts - Maple Grove MN
Thomas J. Richards - Peoria IL

Assignee:

Caterpillar Inc - Peoria IL

International Classification:

E01C 1938

US Classification:

404117, 404122

Abstract:

A system for variably powering and vibrating a compaction roller on a compacting machine for use in compacting surfaces. The system includes a chassis and at least one compaction roller rotatably journaled to the chassis. The compaction roller forms the rotor of a variable reluctance motor for driving the roller in a rotational manner and for vibrating the roller.

US Patent:

20010022472, Sep 20, 2001

Filed:

Sep 30, 1999

Appl. No.:

09/408708

Inventors:

GEORGE CODINA - PLAYA DEL REY CA, US
THOMAS J. RICHARDS - PEORIA IL, US

International Classification:

H02J009/00

US Classification:

307/066000

Abstract:

A method and apparatus for providing uninterrupted power during transitions between a primary power source and a standby power generator. The method and apparatus includes determining one of a power failure condition and a power return condition of the primary power source, transitioning between the primary power source and the standby power generator, and providing power to a load during the transition, the power being supplied by an uninterruptable power supply (UPS) having a capacitor supplied voltage.

US Patent:

53167040, May 31, 1994

Filed:

Sep 28, 1992

Appl. No.:

7/951775

Inventors:

Yading Wang - Arcadia CA
Stephen O. Zhou - Hacienda Heights CA
Thomas P. Richards - Los Angeles CA

Assignee:

Kabi Pharmacia Ophthalmics Inc. - Monrovia CA

International Classification:

B29D 1100

US Classification:

264 26

Abstract:

Expansile hydrogel intraocular lenses are heated above their elastic deformation temperatures and deformed into an elongated configuration having at least one reduced dimension suitable for insertion through a small surgical incision. The lenses are allowed to cool in this configuration and retain the deformed shape prior to surgical implantation. Following implantation the lenses hydrate into an enlarged elastic form reassuming the original lens configuration of full capsule size.

US Patent:

48532010, Aug 1, 1989

Filed:

Jul 11, 1988

Appl. No.:

7/217186

Inventors:

Fernando Ore - Whittier CA
Thomas E. Richards - Jasper FL

Assignee:

Occidental Chemical Corporation - Niagara Falls NY

International Classification:

C01B 2516

US Classification:

423320

Abstract:

P. sub. 2 O. sub. 5 values occluded in the crystals which are precipitated during the hemihydrate process for manufacturing phosphoric acid are recovered by dissolving and recrystallizing the hemihydrate crystals as dihydrate crystals in an acidic environment having a P. sub. 2 O. sub. 5 concentration of from about 0. 1% to about 10% and a free sulfate concentration in the range of about 0. 1% to about 10%. Water is used to wash the dihydrate filter cake, and the filtrate from this wash is used to redissolve the hemihydrate crystals. The free sulfate values are preferably supplied to the dihydrate crystallizer as sulfuric acid.

US Patent:

63250357, Dec 4, 2001

Filed:

Sep 30, 1999

Appl. No.:

9/409572

Inventors:

George Codina - Playa del Rey CA
Thomas J. Richards - Peoria IL

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F02N 1108

US Classification:

1231791

Abstract:

A method and apparatus for starting an internal combustion engine using energy stored in a capacitor. The method and apparatus includes at least one battery for providing energy at a low voltage, an inverter for receiving the energy at the low voltage and producing energy at a high voltage, a capacitor for receiving and storing the energy at the high voltage, means for removing the low voltage source from the inverter, and at least one starter motor adapted to receive the energy at the high voltage from the capacitor and responsively start the engine.

US Patent:

54399505, Aug 8, 1995

Filed:

Jun 27, 1994

Appl. No.:

8/266951

Inventors:

Xiugao Liao - Alhambra CA
Yading Wang - Pasadena CA
Stephen O. Zhou - Hacienda Heights CA
Thomas P. Richards - Shelton WA

Assignee:

Kabi Pharmacia Ophthalmics, Inc. - Monrovia CA

International Classification:

C08F22606
A61L 2700

US Classification:

523108

Abstract:

Non-hydrolyzable, hydrophilic, heterocyclic cross-linking agents for cross-linking vinyl comonomers are provided. The cross-linked copolymers form optically transparent, high water content, and high refractive index hydrogels having long term stability which are useful as intraocular lenses and superabsorbents. The crosslinkers are selected from 4,6 divinyl pyrimidine, 2,5 divinyl pyrazine, 1,4 divinyl imidazole and 1,5 divinyl imidazole.

US Patent:

53868773, Feb 7, 1995

Filed:

Dec 2, 1991

Appl. No.:

7/829028

Inventors:

George G. Codina - Van Nuys CA
Robert J. Price - Dunlap IL
Liliana Grajales - Blacksburg VA
Thomas J. Richards - Peoria IL

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

A01B 1308

US Classification:

172699

Abstract:

An apparatus (102) assists an earthmoving vehicle (104) in the fracture of material (106). The apparatus (102) includes a ripping structure (108) having at least one ripper (112) and one electrode (130). The apparatus (102) generates electrical energy and discharges the electrical energy into the material through the ripping structure (108).

US Patent:

53062973, Apr 26, 1994

Filed:

Jul 6, 1992

Appl. No.:

7/909167

Inventors:

Robert S. Rheinish - Huntington Beach CA
Allan R. Tonks - Fontana CA
Thomas P. Richards - Los Angeles CA

Assignee:

Kabi Pharmacia Ophthalmics, Inc. - Monrovia CA

International Classification:

A61F 216

US Classification:

623 6

Abstract:

The present invention provides an improved intraocular lens haptic having an enlarged anchoring head and an integrally formed support portion extending therefrom. An oblong hole is provided in the anchoring head. The haptic is punched from a sheet or ribbon of polyvinylidene fluoride film, and thereafter a lens optic is cast around the anchoring head. During the casting operation, the lens optic material fills in the oblong hole and all spaces around the anchoring head. Thus, the anchoring head is firmly embedded in an outer periphery of the lens optic. Because the haptic is punched, it can be fabricated to have a variety of different anchoring head shapes and to have a variety of support portion shapes with varying numbers of bends at different bend angles. The orientation of the oblong hole within the anchoring head is also easily changed as is the orientation of the anchoring head relative to the support portion, although both structures are integral and formed from a single sheet of material.