Patents by Inventor David M. Smith

David M. Smith has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6964172
    Abstract: The accumulation period between defrost cycles of a refrigeration apparatus having a electrical defrost heater is calculated on the basis of energy expended to remove the ice from the coil during the previous defrost cycle. In this way, variations in the voltage level being delivered to the heater coil are taken into account and the degree of ice build-up on the coil between defrost cycles can be more accurately controlled.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 15, 2005
    Assignee: Carrier Corporation
    Inventors: Eliot W. Dudley, David M. Smith
  • Publication number: 20040186167
    Abstract: The present invention relates to synthetic green tea derived polyphenolic compounds, their modes of syntheses, and their use in inhibiting proteasomal activity and in treating cancers. The present invention is also directed to pharmaceutical compositions useful in methods of inhibiting proteasomes and of treating cancers.
    Type: Application
    Filed: January 26, 2004
    Publication date: September 23, 2004
    Inventors: Q. Ping Dou, Tak-Hang Chan, David M. Smith
  • Publication number: 20040167115
    Abstract: The subject invention concerns N-thiolated &bgr;-lactam compounds, their analogs and pharmaceutically acceptable salts, esters and amides thereof. The subject invention also concerns methods for inducing tumor cell death or inhibiting tumor cell proliferation, and methods for inducing DNA damage, inhibiting DNA replication, activating p38 MAP kinase, or activating caspase cascade activation, or releasing cytochrome C from mitochondria into the cytoplasm in a tumor cell. Methods for treating cancer using N-thiolated &bgr;-lactam compounds, as well as pharmaceutical compositions comprising the same are further disclosed.
    Type: Application
    Filed: May 6, 2003
    Publication date: August 26, 2004
    Inventors: Q. Ping Dou, Edward Turos, David M. Smith
  • Patent number: 6763651
    Abstract: The active system for the wide area suppression of a ground vortex generated by the engine of an aircraft includes an actuator assembly in fluid communication with a fluid source; and, at least one nozzle assembly, including at least one movable nozzle. The movable nozzle is in fluid communication with the actuator assembly for receiving fluid from the actuator assembly. The actuator assembly controls the motion of the movable nozzle, wherein fluid is injected over a desired region relative to an inlet of the engine to disrupt the flow structure of a ground vortex, thus mitigating ground vortex ingestion. This ensures the operational health of the engine during airplane maneuvering on the ground.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: July 20, 2004
    Assignee: The Boeing Company
    Inventors: Arvin Shmilovich, Yoram Yadlin, David M. Smith, Roger W. Clark
  • Publication number: 20040079834
    Abstract: The active system for the wide area suppression of a ground vortex generated by the engine of an aircraft includes an actuator assembly in fluid communication with a fluid source; and, at least one nozzle assembly, including at least one movable nozzle. The movable nozzle is in fluid communication with the actuator assembly for receiving fluid from the actuator assembly. The actuator assembly controls the motion of the movable nozzle, wherein fluid is injected over a desired region relative to an inlet of the engine to disrupt the flow structure of a ground vortex, thus mitigating ground vortex ingestion. This ensures the operational health of the engine during airplane maneuvering on the ground.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Inventors: Arvin Shmilovich, Yoram Yadlin, David M. Smith, Roger W. Clark
  • Patent number: 6713506
    Abstract: Disclosed herein are ester-bond containing tea polyphenols that has a susceptibility to nucleophilic attack, their analogs and pharmaceutically acceptable salts, method for inhibiting proteasomal chymotrypsin-like activity in vivo and in vitro, methods for cancer treatment with tea-derived polyphenols, such as EGCG, ECG, GCG, or CG, as well as pharmaceutical compositions comprising the same.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: March 30, 2004
    Assignee: University of South Florida
    Inventors: Q. Ping Dou, Sangkil Nam, David M. Smith
  • Patent number: 6581628
    Abstract: A pressure reducing valve assembly (10) for receiving fluid from a high pressure line and delivering the fluid to a low pressure line includes an elongated tubular body (12), a pressure reducing valve (14) having a single, valved opening (54) interposed between high and low pressure ports (68),(70), and a pressure reducing reservoir (16) defined substantially between the body (12) and the pressure reducing valve (14). The pressure reducing reservoir (16) comprises the only substantial fluid communication between the body (12) and the pressure reducing valve (14) and fluidly communicates with the high pressure port (68) by the single, valved opening (54). In preferred forms, the pressure reducing valve (14) includes a valve insert (64) housing a spring (62) that, among other functions, serves as a reset valve to further reduce the space requirements and decreasing the cost and complexity of the valve assembly (10).
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 24, 2003
    Assignee: Vektek, Inc.
    Inventor: David M. Smith
  • Publication number: 20030102463
    Abstract: An elastic, radiation shielding material that can be severed readily with conventional tools, such as scissors and is sufficiently flexible so as to allow wrapping it around piping and tubing. The radiation shielding material comprises a rubber component and a radiation attenuating metal in amounts effective to obtain a desired balance of flexibility and radiation attenuation, respectively. By varying the amount of rubber and metal in the material a desired level of flexibility and radiation attenuation may be obtained.
    Type: Application
    Filed: March 12, 2001
    Publication date: June 5, 2003
    Inventor: David M. Smith
  • Patent number: 6550021
    Abstract: An internet-implemented method of supports a component repair service. The service is rendered for a component of a computer that has an interface for communicating with a web site via the internet. While communicating via the internet, the computer operates under a first operating system that has a protection feature that precludes application-level programming from performing a function to test the component. The method comprises running a first program on the first operating system to cause a display prompt for input control to initiate a test of the component. The method comprises responding to the input control by: exiting from the first operating system and entering a second operating system; running a second program on the second operating system to perform an in situ test of the component to generate a test result; and responding to the test result to store a recorded test result.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: April 15, 2003
    Assignee: Western Digital Ventures, Inc.
    Inventors: Lawrence J. Dalphy, Thomas R. Harbert, David M. Smith
  • Patent number: 6542282
    Abstract: A method of patterning a metal layer that cleans the residue from a metal etch process without removing a photoresist etch mask. The method is particularly useful for the fabrication of micromirror devices, or other MEMS devices that use photoresist spacer layers. A photoresist layer is spun on to the mirror metal layer in step 906. The photoresist is patterned and developed in step 908 to form openings to the metal layer. The openings define areas where the mirror metal layer will be removed. The patterned photoresist is inspected in step 910. The mirror metal layer is etched in step 912 using the patterned photoresist layer as an etch mask. After the mirror metal has been etched, the webbing and other residues are removed in a clean up process 914 that uses photoresist developer as a solvent to remove the webbing. After the developer clean up process, the mirrors are inspected in step 916 to verify the proper gaps have been etched between the mirrors and the removal of the mirror etch residue.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: April 1, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: David M. Smith, Eric R. Trumbauer, Ronald C. Roth, Brian P. Scott
  • Publication number: 20020179860
    Abstract: An elastic, radiation shielding material that can be severed readily with conventional tools, such as scissors and is sufficiently flexible so as to allow wrapping it around piping and tubing. The radiation shielding material comprises a rubber component and a radiation attenuating metal in amounts effective to obtain a desired balance of flexibility and radiation attenuation, respectively. By varying the amount of rubber and metal in the material a desired level of flexibility and radiation attenuation may be obtained.
    Type: Application
    Filed: March 12, 2002
    Publication date: December 5, 2002
    Inventor: David M. Smith
  • Publication number: 20020170601
    Abstract: A pressure reducing valve assembly (10) for receiving fluid from a high pressure line and delivering the fluid to a low pressure line includes an elongated tubular body (12), a pressure reducing valve (14) having a single, valved opening (54) interposed between high and low pressure ports (68),(70), and a pressure reducing reservoir (16) defined substantially between the body (12) and the pressure reducing valve (14). The pressure reducing reservoir (16) comprises the only substantial fluid communication between the body (12) and the pressure reducing valve (14) and fluidly communicates with the high pressure port (68) by the single, valved opening (54). In preferred forms, the pressure reducing valve (14) includes a valve insert (64) housing a century spring (62) that, among other functions, serves as a reset valve to further reduce the space requirements and decreasing the cost and complexity of the valve assembly (10).
    Type: Application
    Filed: May 16, 2001
    Publication date: November 21, 2002
    Inventor: David M. Smith
  • Publication number: 20020151582
    Abstract: Disclosed herein are ester-bond containing tea polyphenols that has a susceptibility to nucleophilic attack, their analogs and pharmaceutically acceptable salts, method for inhibiting proteasomal chymotrypsin-like activity in vivo and in vitro, methods for cancer treatment with tea-derived polyphenols, such as EGCG, ECG, GCG, or CG, as well as pharmaceutical compositions comprising the same.
    Type: Application
    Filed: October 11, 2001
    Publication date: October 17, 2002
    Inventors: Q. Ping Dou, Sangkil Nam, David M. Smith
  • Publication number: 20020126368
    Abstract: A method of patterning a metal layer that cleans the residue from a metal etch process without removing a photoresist etch mask. The method is particularly useful for the fabrication of micromirror devices, or other MEMS devices that use photoresist spacer layers. A photoresist layer is spun on to the mirror metal layer in step 906. The photoresist is patterned and developed in step 908 to form openings to the metal layer. The openings define areas where the mirror metal layer will be removed. The patterned photoresist is inspected in step 910. The mirror metal layer is etched in step 912 using the patterned photoresist layer as an etch mask. After the mirror metal has been etched, the webbing and other residues are removed in a clean up process 914 that uses photoresist developer as a solvent to remove the webbing. After the developer clean up process, the mirrors are inspected in step 916 to verify the proper gaps have been etched between the mirrors and the removal of the mirror etch residue.
    Type: Application
    Filed: December 31, 2001
    Publication date: September 12, 2002
    Inventors: David M. Smith, Eric R. Trumbauer, Ronald C. Roth, Brian P. Scott
  • Patent number: 6289827
    Abstract: A process for the utilization and strategic addition of ash modifying compounds, into selective catalytic reduction units, to modify the resultant ash chemistry to control ash accumulation and corrosive effects of the combustion products, and problems associated with fly-ash disposal or recycling.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: September 18, 2001
    Assignee: Martin Marietta Magnesia Specialties Inc.
    Inventors: Mark Wajer, David M. Smith
  • Patent number: 6278611
    Abstract: A rack (70) for a plurality of electronics modules (36) that does not include inlet and outlet air cooling plenums. The rack (70) includes a heat exchanger (72) including three separate sections (78, 80, 82), where each section (78, 80, 82) include spaced-apart parallel fins (84, 86, 88). First and second end sections (80, 82) of the heat exchanger (72) include cooling fins (86, 88) that extend parallel to each other in a front-to-back direction relative to the direction the modules (36) are slid into the rack (70). The first and second end sections (80, 82) are positioned at opposite ends of a center section (78), where the fins (84) of the center section (78) extend in a direction transverse to the direction the modules (36) are slid into the rack (70). The channels between the fins (86, 88) in the first and second end sections (80, 82) are aligned with inlet and outlet ports (94, 98) extending through a back panel (52) of the rack (70).
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: August 21, 2001
    Assignee: TRW Inc.
    Inventors: John J. Arena, David M. Smith, Richard A. Matonis
  • Patent number: 6272016
    Abstract: A rack (70) for a plurality of internal electronics modules that includes a mechanism for mounting external electronics modules (69). The rack (70) includes a heat exchanger (63) disposed between the rack (70) and the external electronics module (69). The external electronics module (69) includes a heat coupling surface for efficiently using the heat exchanger (63) for dissipating heat of the external electronics module (69).
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: August 7, 2001
    Inventors: Richard A. Matonis, David M. Smith, John J. Arena
  • Patent number: 6182634
    Abstract: The present invention includes preventing an engine from stalling at a preselected low idle range during operation of a work machine. To accomplish this, a controller is located within a tachometer and disposed on the work machine. The controller is responsive to a first specified low idle RPM signal from the engine. The controller converts the RPM signal to an electrical signal that is directed to a relay. The relay is responsive to the electrical signal to automatically switch at least one device operating on the work machine from a first power output level to a second power output level lower than the first power output level. The controller is responsive to a second specified low idle RPM signal from the engine and converts it to another electrical signal.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: February 6, 2001
    Assignee: Caterpillar Inc.
    Inventors: Sarah D. Caldwell, Robert Q. Elliott, John E. Francis, W. Frank Landon, David M. Smith, Stephen M. Sturhahn
  • Patent number: 6169658
    Abstract: A rack (70) for a plurality of electronics modules (36) that does not include inlet and outlet air cooling plenums. The rack (70) includes a heat exchanger (72) including three separate sections (78, 80, 82), where each section (78, 80, 82) include spaced-apart parallel fins (84, 86, 88). First and second end sections (80, 82) of the heat exchanger (72) include cooling fins (86, 88) that extend parallel to each other in a front-to-back direction relative to the direction the modules (36) are slid into the rack (70). The first and second end sections (80, 82) are positioned at opposite ends of a center section (78), where the fins (84) of the center section (78) extend in a direction transverse to the direction the modules (36) are slid into the rack (70). The channels between the fins (86, 88) in the first and second end sections (80, 82) are aligned with inlet and outlet ports (94, 98) extending through a back panel (52) of the rack (70).
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: January 2, 2001
    Assignee: TRW Inc.
    Inventors: John J. Arena, David M. Smith, Richard A. Matonis
  • Patent number: 6129309
    Abstract: An aircraft engine apparatus with a reduced inlet vortex is provided which utilizes a vortex disruption system that periodically discharges pulses of engine bleed fluid through at least one outlet port opening through the inlet of the engine nacelle to disrupt the engine inlet vortex. The vortex disruption system thereby prevents ingestion of foreign matter into the engine inlet without sacrificing engine power, efficiency, or aircraft cruise performance.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: October 10, 2000
    Assignee: McDonnell Douglas Corporation
    Inventors: David M. Smith, John Dorris, III