Paul Caine Moore
Speech Language Pathology in Salt Lake City, UT
License number
Utah 110909-9937
Issued Date
Jul 14, 1988
Expiration Date
Dec 31, 1991
Category
Speech/Audiology
Type
Speech Lang Pathologist & Audiologist
Address
Address
Salt Lake City, UT
Professional information
Safety Officer At Veterans Administration
Position:
Safety Officer at Veterans Administration
Location:
Greater Salt Lake City Area
Industry:
Government Administration
Work:
Veterans Administration
-
Safety Officer
Thermionic Emitter Designed To Provide Uniform Loading And Thermal Compensation
US Patent:
7903788, Mar 8, 2011
Filed:
Sep 25, 2008
Appl. No.:
12/238200
Inventors:
Paul D. Moore - Salt Lake City UT, US
James Russell Boye - Salt Lake City UT, US
James Russell Boye - Salt Lake City UT, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/06
US Classification:
378136, 378121
Abstract:
An electron emitter assembly for use in an x-ray emitting device or other electron emitter-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes an electron emitter having a plurality of substantially parallel emission surfaces that collectively emit a beam of electrons for impingement on the target anode. In one aspect, the plurality of substantially parallel emission surfaces are angled relative focusing region so as to provide a substantially uniform thermal load on the target anode. In another aspect, the electron emitter includes a plurality of cut-outs that accommodate thermal expansion in the plane of the emitter. Accommodating thermal expansion in the plane of the emitter prevents distortions to the emitter that would tend to alter the focusing of the electrons on the target anode. Providing a substantially uniform thermal load on the target anode and preventing thermal distortion of the emitter lead to higher x-ray flux and better focusing for higher quality x-ray images.
Thermionic Emitter Designed To Control Electron Beam Current Profile In Two Dimensions
US Patent:
7924983, Apr 12, 2011
Filed:
Jun 30, 2008
Appl. No.:
12/165279
Inventors:
Paul D. Moore - Salt Lake City UT, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/06
US Classification:
378136, 378122
Abstract:
An electron emitter assembly for use in an x-ray emitting device or other electron emitter-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes an electron emitter assembly for emitting a beam of electrons during tube operation. The electron emitter assembly comprises a refractory metal foil with a plurality of shaped rung structures for emitting an electron beam that maximizes flux while simultaneously focusing the electron beam in two dimensions. Focusing occurs primarily through an electrical field shaped by the electron emitter assembly and through balancing current density, electrical resistance, and heat loss through thermal conduction to control the regions that emit electrons. Furthermore, the refractory metal foil can be configured with a modified work function for preferential electron emission.
Electron Emitter And Method Of Making Same
US Patent:
8175222, May 8, 2012
Filed:
Aug 27, 2009
Appl. No.:
12/488407
Inventors:
Paul D. Moore - Salt Lake City UT, US
Stephen G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
David H. Humber - Los Gatos CA, US
Gary F. Virshup - Cupertino CA, US
Stephen G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
David H. Humber - Los Gatos CA, US
Gary F. Virshup - Cupertino CA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/00
US Classification:
378136, 378129
Abstract:
One example embodiment includes an electron emitter. The electron emitter comprises a conductive member that defines a plurality of filament segments that are integral with each other. Each filament segment includes an intermediate portion and an interconnecting portion attached to an adjacent filament segment. The intermediate portions are substantially coplanar with each other and each intermediate portion includes a substantially planar electron emission surface.
Electron Emitter And Method Of Making Same
US Patent:
8498379, Jul 30, 2013
Filed:
May 7, 2012
Appl. No.:
13/465941
Inventors:
Paul D. Moore - Salt Lake City UT, US
Stephen G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
David H. Humber - Los Gatos CA, US
Gary F. Virshup - Cupertino CA, US
Stephen G. Bandy - Sunnyvale CA, US
Clifford K. Nishimoto - San Jose CA, US
David H. Humber - Los Gatos CA, US
Gary F. Virshup - Cupertino CA, US
Assignee:
Varian Medical Systems Inc. - Palo Alto CA
International Classification:
H01J 35/00
US Classification:
378136, 378119
Abstract:
One example embodiment includes methods for making electron emitters. The electron emitter comprises a conductive member that defines a plurality of filament segments that are integral with each other. Each filament segment includes an intermediate portion and an interconnecting portion attached to an adjacent filament segment. The intermediate portions are substantially coplanar with each other and each intermediate portion includes a substantially planar electron emission surface.
Electron Emitter Apparatus And Method Of Assembly
US Patent:
8077829, Dec 13, 2011
Filed:
Sep 25, 2008
Appl. No.:
12/238214
Inventors:
Paul D. Moore - Salt Lake City UT, US
Christopher F. Artig - Summit Park UT, US
Robert C. Treseder - Burton WA, US
Christopher F. Artig - Summit Park UT, US
Robert C. Treseder - Burton WA, US
Assignee:
Varian Medical Systems, Inc. - Palo Alto CA
International Classification:
H01J 35/06
US Classification:
378136
Abstract:
An electron emitter assembly, and methods of assembly, is disclosed. The emitter assembly includes an electron emitter that is secured to a support device in a manner such that the emitter is substantially thermally isolated from the support device.
Paul Moore
Location:
Greater Salt Lake City Area
Industry:
Environmental Services
Composite Stator
US Patent:
7127034, Oct 24, 2006
Filed:
Feb 5, 2003
Appl. No.:
10/358937
Inventors:
David S. K. Lee - Salt Lake City UT, US
Paul D. Moore - Salt Lake City UT, US
John E. Postman - Sandy UT, US
Paul D. Moore - Salt Lake City UT, US
John E. Postman - Sandy UT, US
Assignee:
Varian Medical Systems Technologies, Inc. - Palo Alto CA
International Classification:
H01J 35/10, H01J 35/00
US Classification:
378131, 378119, 378121
Abstract:
A composite stator is disclosed for use with rotationally driven apparatus, particularly high voltage x-ray tubes. The composite stator generally comprises a core, a plurality of motor windings, and a retaining band. The core is comprised of two or more core sections having slots defined therein for receiving the motor windings. The motor windings are wound through and between the slots of the core sections, after which the core sections are joined together to form the core. The core sections are maintained in an assembled configuration by the retaining band. The motor windings are interconnected to comprise the electromagnetic pole pairs of the composite stator, thereby allowing the stator to induce the rotation of the rotor assembly of the high voltage x-ray tube.