Frederick C Clarke

US Patent:

7095555, Aug 22, 2006

Filed:

Aug 25, 2005

Appl. No.:

11/215201

Inventors:

Frederick W. Clarke - Madison AL, US
Saulius Balevicius - Vilnius, LT

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01S 3/082

US Classification:

359347, 372 27, 372 97

Abstract:

An apparatus for and a method of amplifying Faraday or Voigt rotation by passing light through a sample many times using multiple internal reflections and successive mirrored chambers that repeatedly send the light back through the sample. The sample is placed in a sample chamber that is adjacent to an optical amplifier chamber, and the optical amplifier chamber is adjacent to one or more additional chambers. The sample has a magnetic field applied thereto. The sample chamber receives light from a light source. The light reflects within the sample chamber and the sample to accumulate rotation of the light. The sample chamber transmits the light to the optical amplifier chamber. The optical amplifier chamber transmits the light to the additional chambers and reflects the light back to the sample where the light undergoes further rotation. Each one of the additional chambers transmits the light to the next additional chamber and reflects the light back to a previous chamber.

US Patent:

44344279, Feb 28, 1984

Filed:

Jan 5, 1982

Appl. No.:

6/337117

Inventors:

Frederick Clarke - Houston TX
Donald E. Lorenzi - Des Plaines IL
Edward F. Schaefer - Tulsa OK

Assignee:

Magnaflux Corporation - Chicago IL

International Classification:

G03B 3700
G01D 938

US Classification:

346 33P

Abstract:

A device is disclosed which includes a camera pig and a tow pig having an articulated connection therebetween to permit movement through pipe bends. The tow pig includes a syphon device for projecting liquids upwardly and forwardly and also includes a compressor and a desiccant chamber for drying of gas which is injected into a camera space between cups of the camera pig. A flow path is provided through the camera pig which by-passes the camera space, for maintaining a passive environment therein.

US Patent:

45979243, Jul 1, 1986

Filed:

Oct 21, 1985

Appl. No.:

6/789598

Inventors:

Henry C. Allen - Decatur AL
Frederick W. Clarke - Huntsville AL

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

C06B 2100

US Classification:

264 36

Abstract:

A process is disclosed for improving the mechanical properties and procesility of thermoplastic composite propellants achieved by incorporation in the propellant of from about 0. 1% to 1. 0% of an organic titanate of the general formula Ti(OR). sub. 4, where R represents a common alkyl group. The process comprises dissolving in an excess amount of a volatile organic solvent a thermoplastic elastomer which consists of hard segments having substantially crystalline properties and soft segments having substantially amorphous properties. The hard segments impart rigid properties to a solid propellant composition with which it is combined, and the soft segments imparting rubbery properties to a solid propellant composition with which it is combined. The Ti(OR). sub. 4 functions as a medium between the surface of the ammonium perchlorate (AP) oxidizer and the thermoplastic elastomer to improve processability and to provide a bonding substrate to enhance the adhesive bond between the AP and the thermoplastic elastomer.