Timothy W Graham

US Patent:

8294609, Oct 23, 2012

Filed:

Apr 28, 2010

Appl. No.:

12/768965

Inventors:

Timothy David Graham - Liverpool NY, US

Assignee:

SRC, Inc. - North Syracuse NY

International Classification:

G01S 7/42
G01S 13/00

US Classification:

342 90, 372 13, 372 89, 372 95

Abstract:

A method of using a discriminant analysis and Kalman filter cascade to improve the accuracy of point of origin solutions. Tracking information about a potential target is utilized by an initial discrimination function to classify the target as a projectile. Using that information, the output of a first Kalman filter is fed into an additional discrimination function to further classify the type or sub-class of the projectile. A second Kalman filter can employ type-specific information to obtain a point of origin solution with increased efficiency and accuracy.

US Patent:

20130335269, Dec 19, 2013

Filed:

Aug 20, 2013

Appl. No.:

13/971062

Inventors:

Timothy David Graham - Liverpool NY, US

Assignee:

SRC, Inc. - North Syracuse NY

International Classification:

H01Q 21/20

US Classification:

342371

Abstract:

An antenna architecture for hemispherically-scanning active electronically scanned arrays (AESA). The antenna architecture utilizes variable diameter disks of antenna elements configured in a conical implementation. The antenna elements are oriented such that the element boresight is normal to the surface of the conical structure. Beamforming takes place on each disk first, and them separately in combining the signals from each disk, thereby reducing complexity. The antenna optionally utilizes disks of antenna elements of the same diameter to form a cylindrical antenna, which when combined with a conical configuration create enhanced sectors while maintaining a hemispherical coverage capability. Further, use of two conical configurations can produce a fully spherical coverage capability.

US Patent:

59428503, Aug 24, 1999

Filed:

Sep 24, 1997

Appl. No.:

8/935473

Inventors:

Douglas M. Rutan - Auburn NY
Diane M. Salvati - Skaneateles NY
Timothy W. Graham - Union Springs NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 1720
H01J 6112

US Classification:

313571

Abstract:

A high performance miniature projection lamp which includes a glass envelope having a pair of opposite neck portions each with a coaxial central opening having a reduced section and an hermetically sealed central chamber having a volume of about 130 mm. sup. 3 which contains a fill. The fill includes an argon pressure at room temperature at a range of about 0. 5 atmospheres to about 2. 0 atmospheres and mercury in an amount in the range of about 5 mg to about 15 mg, and a mixture of metal halide material in an amount from about 50 up to 1000 micrograms. A pair of axially aligned electrodes are positioned at opposite neck portions and separated form each other by a predetermined distance. The electrodes each have a shank portion which each having a coil wrapped around its end.

US Patent:

50591460, Oct 22, 1991

Filed:

Feb 22, 1990

Appl. No.:

7/483901

Inventors:

Brian J. Thomas - Phoenix NY
Timothy W. Graham - Union Springs NY
Daniel C. Briggs - Camillus NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 942

US Classification:

445 4

Abstract:

Apparatus and a method for combining radiant energy of substantially distinct spectral bands to produce a light source having predetermined color temperature or chromaticity characteristics. The apparatus comprises a generating source that generates emissions of radiant energy from at least two spatial emission regions. Each of the spatial emission regions emits radiant energy in a substantially distinct spectral band. The apparatus further comprises an optical directing system that directs a substantial portion of the radiant energy emitted from the emission regions. The optical directing system includes a positioning region that contains a near focus and a combining region that contains a far focus. The generating source is supported substantially within the positioning region of the optical directing system such that the radiant energy, emitted from the spatial emission regions, is substantially directed to the far focus and combined within the combining region to produce an effective light source having predetermined color temperature or chromaticity characteristics.

US Patent:

50830597, Jan 21, 1992

Filed:

Dec 31, 1990

Appl. No.:

7/636743

Inventors:

Timothy W. Graham - Union Springs NY
John Scoins - Skaneateles NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 1704

US Classification:

313631

Abstract:

A low-wattage metal-halide discharge lamp has a tube of the double ended type that forms a bulb or envelope, a pair of electrodes, e. g. , an anode and a cathode, which penetrate into an arc chamber inside the envelope, and a suitable amount of mercury plus one or more metal halide salts. The electrodes are each formed of a refractory metal, i. e. , tungsten wire, extending through the respective necks into the arc chamber. The electrodes are of a composite design i. e. , in the form of a club, with a lead-in wire of small diameter supported in the associated neck, and a post member of greater diameter supported on the lead-end wire. The post members are supported of contact with the necks and also out of contact with the bulb wall. The larger size of the post member allows heat at the tip to diffuse back into the post member, so that the metal tip will not evaporate. The narrow lead-in wire keeps most of the heat in the bulb, so that flow of heat out of the neck portions is limited.

US Patent:

51442019, Sep 1, 1992

Filed:

Feb 23, 1990

Appl. No.:

7/484166

Inventors:

Timothy W. Graham - Union Springs NY
Daniel C. Briggs - Camillus NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 1716

US Classification:

313634

Abstract:

A metal halide arc discharge lamp is disclosed having a power input rating of not more than 35 watts. The lamp includes an envelope of light transmissive material, such as fused quartz, including a bulb portion, a pair of transitional neck portions extending from the bulb portion, and a pair of stem portions extending from the transitional neck portions respectively. The bulb portion of the envelope defines an arc chamber therein and has an external surface area of such value as to produce a wall loading not exceeding 35 watts/cm. sup. 2. The arc chamber contains a fill of mercury, inert gas and metal halide. The mercury and the metal halide are adapted to substantially vaporize during operation of the lamp. A pair of electrodes extend into the arc chamber from the pair of neck portions respectively. Each electrode has an electrode tip spaced apart from one another by a distance A within the arc chamber.

US Patent:

54204771, May 30, 1995

Filed:

Jan 15, 1993

Appl. No.:

8/004924

Inventors:

John W. Sims - Weedsport NY
Timothy W. Graham - Union Springs NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 1704

US Classification:

313631

Abstract:

A low power metal halide discharge lamp having an improved electrode structure. Two elongated electrodes fabricated of a doped tungsten each extend axially through a respective neck of a bulb into an arc chamber. Each of electrode comprises a lead-in wire having a diameter ranging between about 0. 003 to 0. 018 inches that enters the arc chamber. A post member is mounted on the lead-in wire, out of contact with the associated neck, and is preferably welded to the lead-in. The post member has a flat distal surface for transferring heat to vapors in said arc chamber. It is larger in diameter than its associated lead-in wire, and has a diameter in a range of 0. 005 to 0. 040 inches. The flat distal surfaces of the two post members face one another in spaced apart relationship, the space therebetween forming an arc gap. In operation the distal surfaces of the post members have relatively large areas in contact with vapors in the arc chamber for heat transfer, and the heat is sufficiently dispersed in the distal region of the post members to prevent burn back.

US Patent:

51441900, Sep 1, 1992

Filed:

May 10, 1991

Appl. No.:

7/698074

Inventors:

Brian J. Thomas - Phoenix NY
Timothy W. Graham - Union Springs NY
Daniel C. Briggs - Camillus NY

Assignee:

Welch Allyn, Inc. - Skaneateles Falls NY

International Classification:

H01J 516

US Classification:

313113

Abstract:

Apparatus and a method for combining radiant energy of substantially distinct spectral bands to produce a light source having predetermined color temperature or chromaticity characteristics. The apparatus includes a generating source that generates emissions of radiant energy from at least two spatial emission regions. Each of the spatial emission regions emits radiant energy in a substantially distinct spectral band. The apparatus further includes an optical directing system that directs a substantial portion of the radiant energy emitted from the emission regions. The optical directing system includes a positioning region that contains a near focus and a combining region that contains a far focus. The generating source is supported substantially within the positioning region of the optical directing system such that the radiant energy, emitted from the spatial emission regions, is substantially directed to the far focus and combined within the combining region to produce an effective light source having predetermined color temperature or chromaticity characteristics.