Patents by Inventor David M. Thompson

David M. Thompson 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: 6985690
    Abstract: Polyetherimide-b-polysiloxane block copolymers are useful as surface layers for fuser and fixing members in various printing devices, including electrostatographic imaging systems and ballistic aerosol marking devices. Optionally, the polyetherimide-b-polysiloxane block copolymers are fluorinated, or include at least 50% by weight siloxane.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: January 10, 2006
    Assignee: Xerox Corporation
    Inventors: Peter G. Odell, Subajinie Sathiyavanthan, T. Brian McAneney, Edward G. Zwartz, Alan R. Kuntz, George A. Riehle, David J. Gervasi, David M. Thompson, Karen A. Moffat, Caroline M. Turek
  • Patent number: 6945575
    Abstract: A lift gate latch is used in connection with a lift gate and a handrail on a boat. The handrail has a jamb, and the lift gate has at least one stile. The lift gate latch has left and right side walls spaced apart and disposed adjacent the deck of the boat. Reinforcing ribs extend along both side walls, which straddle the jamb and the stile. A transverse member and a base member extend between the side walls. A portion of the right side wall has a height lower than the left side wall height, so that the stile can pass easily over it when opening and closing the gate. Fasteners pass through holes in the side walls and attach to the deck. Bosses are juxtaposed with the holes. The fasteners and bosses strengthen the side wall adjacent each hole.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: September 20, 2005
    Inventor: David M. Thompson
  • Patent number: 6929073
    Abstract: A fire access port is mounted on a flammable material compartment juxtaposed with an access hole. A fire extinguisher nozzle is inserted through the fire port to suppress a fire from outside the compartment The fire port comprises a diaphragm of flexible, resilient material having a predetermined thickness extending between opposite primary and secondary surfaces. First and second transverse grooves extend across the diaphragm primary surface. The grooves have a maximum depth less than the diaphragm thickness, and a floor at the maximum depth, forming first and second frangible webs between each groove floor and the secondary surface. The frangible webs will rupture as the fire extinguisher nozzle is inserted through the diaphragm. An annular ring-like base member extends around the diaphragm. The base member extends from a proximal edge with a predetermined thickness for strength, outward to a distal edge having less thickness. A cylindrical wall extends annularly around the diaphragm for reinforcement.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: August 16, 2005
    Inventor: David M. Thompson
  • Patent number: 6919468
    Abstract: Asymmetric, disubstituted metallocene compounds have the general formula CpMCp? where M is a metal selected from the group consisting of Ru, Os and Fe; Cp is a first substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1; Cp? is a second substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1?. D1 is different from D1?.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: July 19, 2005
    Assignee: Praxair Technology, Inc.
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Patent number: 6884901
    Abstract: A method for producing Group 8 (VIII) metallocene or metallocene-like compounds employs a compound that includes a Cp? anion, such as found, together with a counterion, in a cyclopentadienide or cyclopentadienide-like salt. In one embodiment, the method includes reacting a metal salt, a (Cp) compound, such as a substituted or unsubstituted cyclopentadiene or indene, and a ligand (L) to form an intermediate compound and reacting the intermediate compound with a Cp? compound, eg., a cyclopentadienide or cyclopentadienide-like salt, where the metal salt can be is a ruthenium, an osmium or an iron halide or nitrate and L is an electron pair donor. Unsubstituted, mono-substituted as well as symmetrically or asymmetrically di- or multi-substituted metallocenes or metallocene-like compounds can be produced. In another embodiment, unsubstituted or symmetrically substituted metallocenes are formed by reacting MX2(PPh3)m with a Cp? compound, where m=3 or 4.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: April 26, 2005
    Assignee: Praxair Technology, Inc.
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Publication number: 20040239122
    Abstract: A lift gate latch is used in connection with a lift gate and a handrail on a boat. The handrail has a jamb, and the lift gate has at least one stile. The lift gate latch has left and right side walls spaced apart and disposed adjacent the deck of the boat. Reinforcing ribs extend along both side walls, which straddle the jamb and the stile. A transverse member and a base member extend between the side walls. A portion of the right side wall has a height lower than the left side wall height, so that the stile can pass easily over it when opening and closing the gate. Fasteners pass through holes in the side walls and attach to the deck. Bosses are juxtaposed with the holes. The fasteners and bosses strengthen the side wall adjacent each hole.
    Type: Application
    Filed: April 23, 2004
    Publication date: December 2, 2004
    Inventor: David M. Thompson
  • Patent number: 6805069
    Abstract: A finger pinch guard is used in connection with railings on a boat. Stanchions of adjacent railing segments are mounted close together on the boat gunwales. Each pair of adjacent railings forms a generally Y shaped profile in an arcuate transition area wherein fingers can jam. A mounting member having an axle is attached to the railing in this area. A curved member, typically including a generally spherical wheel, is attached to the mounting member axle, and is able to rotate on the axle. Thus, a finger introduced into this area with downward force will cause the wheel to rotate, thereby directing the finger to roll outward off the wheel and away from the railing. Another embodiment has a mounting member with a unitary, non-rotating curved member. The finger will slide off the curved member and away from the railing.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: October 19, 2004
    Inventor: David M. Thompson
  • Publication number: 20040182584
    Abstract: A fire access port is mounted on a flammable material compartment juxtaposed with an access hole. A fire extinguisher nozzle is inserted through the fire port to suppress a fire from outside the compartment. The fire port comprises a diaphragm of flexible, resilient material having a predetermined thickness extending between opposite primary and secondary surfaces. First and second transverse grooves extend across the diaphragm primary surface. The grooves have a maximum depth less than the diaphragm thickness, and a floor at the maximum depth, forming first and second frangible webs between each groove floor and the secondary surface. The frangible webs will rupture as the fire extinguisher nozzle is inserted through the diaphragm.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Inventor: David M. Thompson
  • Publication number: 20040171858
    Abstract: Asymmetric, disubstituted metallocene compounds have the general formula CpMCp′ where M is a metal selected from the group consisting of Ru, Os and Fe; Cp is a first substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1; Cp′ is a second substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1′. D1 is different from D1′.
    Type: Application
    Filed: October 16, 2003
    Publication date: September 2, 2004
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Publication number: 20040154522
    Abstract: A finger pinch guard is used in connection with railings on a boat. Stanchions of adjacent railing segments are mounted close together on the boat gunwales. Each pair of adjacent railings forms a generally Y shaped profile in an arcuate transition area wherein fingers can jam. A mounting member having an axle is attached to the railing in this area. A curved member, typically including a generally spherical wheel, is attached to the mounting member axle, and is able to rotate on the axle. Thus, a finger introduced into this area with downward force will cause the wheel to rotate, thereby directing the finger to roll outward off the wheel and away from the railing. Another embodiment has a mounting member with a unitary, non-rotating curved member. The finger will slide off the curved member and away from the railing.
    Type: Application
    Filed: February 6, 2003
    Publication date: August 12, 2004
    Inventor: David M. Thompson
  • Publication number: 20040126485
    Abstract: Disclosed herein is a process for producing a film, coating or powder employing a metallocene or metallocene-like precursor having the general formula CpMCp′, where M is a metal selected from the group consisting of Ru, Os and Fe; Cp is a first substituted cyclopentadienyl or cyclopentadienyl-like, e.g., indenyl, moiety that includes at least one substituent group D1, where D1 is X; Ca1Hb1Xc1; Ca2Hb2Xc2(C═O)Ca1Hb1Xc1; Ca2Hb2Xc2OCa1Hb1Xc1; Ca2Hb2Xc2(C═O)OCa1Hb1Xc1; or Ca2Hb2Xc2O(C═O)Ca1Hb1Xc1; and Cp′ is a second substituted cyclopentadienyl or cyclopentadienyl-like, e.g., indenyl, moiety that includes at least one substituent group D1′, where D1′ is X; Ca1Hb1Xc1; Ca2Hb2Xc2(C═O)Ca1Hb1Xc1; Ca2Hb2Xc2OCa1Hb1Xc1; Ca2Hb2Xc2(C═O)OCa1Hb1X1; or Ca2Hb2Xc2O(C═O)Ca1Hb1Xc1. D1 and D1′ are different from one another.
    Type: Application
    Filed: October 16, 2003
    Publication date: July 1, 2004
    Inventors: David M. Thompson, Cynthia A. Hoover, John D. Peck, Michael M. Litwin
  • Publication number: 20040127732
    Abstract: A method for producing Group 8 (VIII) metallocene or metallocene-like compounds employs a compound that includes a Cp′ anion, such as found, together with a counterion, in a cyclopentadienide or cyclopentadienide-like salt. In one embodiment, the method includes reacting a metal salt, a (Cp) compound, such as a substituted or unsubstituted cyclopentadiene or indene, and a ligand (L) to form an intermediate compound and reacting the intermediate compound with a Cp′ compound, eg., a cyclopentadienide or cyclopentadienide-like salt, where the metal salt can be is a ruthenium, an osmium or an iron halide or nitrate and L is an electron pair donor. Unsubstituted, mono-substituted as well as symmetrically or asymmetrically di- or multi-substituted metallocenes or metallocene-like compounds can be produced. In another embodiment, unsubstituted or symmetrically substituted metallocenes are formed by reacting MX2(PPh3)m with a Cp′ compound, where m=3 or 4.
    Type: Application
    Filed: October 16, 2003
    Publication date: July 1, 2004
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Publication number: 20040056490
    Abstract: A lift gate latch is used in connection with a lift gate and a handrail on a boat. The handrail has a jamb, and the lift gate has at least one stile. The lift gate latch has left and right side walls spaced apart and disposed adjacent the gunwale of the boat. Reinforcing ribs extend along both side walls, which straddle the jamb and the stile. A transverse member and a base member extend between the side walls. A portion of the right side wall has a height lower than the left side wall height, so that the stile can pass easily over it when opening and closing the gate. Fasteners pass through holes in the side walls and engage the gunwale. Bosses are juxtaposed with the holes. The fasteners and bosses strengthen the side wall adjacent each hole.
    Type: Application
    Filed: September 20, 2002
    Publication date: March 25, 2004
    Inventor: David M. Thompson
  • Patent number: 6658225
    Abstract: An image forming system including a charge pre-charge erase array system that includes a plurality of pint light sources that emit a band of light onto a photoreceptor. The plurality of point light sources are variably spaced to substantially uniformly illuminate the photoreceptor.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: December 2, 2003
    Assignee: Xerox Corporation
    Inventors: David M. Thompson, Ed Savage, Franly H. Sanchez
  • Publication number: 20030161659
    Abstract: An image forming system including a charge erasing system that includes a plurality of point light sources that emit a band of light onto a photoreceptor. The plurality of point light sources are variably spaced to substantially uniformly illuminate the photoreceptor.
    Type: Application
    Filed: February 28, 2002
    Publication date: August 28, 2003
    Applicant: Xerox Corporation
    Inventors: David M. Thompson, Ed Savage, Franly H. Sanchez
  • Patent number: 6567188
    Abstract: A non-coplanar calibration system exists when the calibration reference plane is offset from a document plane. Due to size, shape, or other factors attributable to a scanning system, it may not be feasible to place the calibration reference plane on the document plane, i.e., the platen glass. Lamp-fall off represents an effect that occurs as you get closer to the ends of the lamp and light energy is diminished. The profile difference between the calibration plane and the document plane in a non-coplanar system can be corrected for on a pixel by pixel basis. Illumination fall off due to the change in the distance from calibration plane to the document plane represents the main effect that must be corrected for. Also, the platen glass must be taken into account. A single calibration correction factor can be applied to each CCD element in a scanning system to account for the shift from calibration plane to document plane.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: May 20, 2003
    Assignee: Xerox Corporation
    Inventors: David M. Thompson, Ed C. Savage, John I. Howard
  • Patent number: 6129036
    Abstract: A swimmer's safety device including a casing having a top surface with a plurality of perforations to allow water to enter once submerged, and having a deflectable membrane along with a plunger to penetrate a dye material and puncture a rupturable bottom surface to release the dye into the water, once the casing is submerged to a depth predetermined aforehand, and for a time interval set in accordance with the skills of the swimmer, as well. The casing, in accordance with the invention, could be incorporated as part of a swimsuit construction, could be temporarily secured to the swimsuit of a wearer, or could be worn as a swimsuit accessory as a wristband, armband, headband, or necklace.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 10, 2000
    Inventors: Lawrence P. King, Matthew G. Reinhart, David M. Thompson
  • Patent number: 6115393
    Abstract: Monitoring is done of communications which occur in a network of nodes, each communication being effected by a transmission of one or more packets among two or more communicating nodes, each communication complying with a predefined communication protocol selected from among protocols available in the network. The contents of packets are detected passively and in real time, communication information associated with multiple protocols is derived from the packet contents.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: September 5, 2000
    Assignee: Concord Communications, Inc.
    Inventors: Ferdinand Engel, Kendall S. Jones, Kary Robertson, David M. Thompson, Gerard White
  • Patent number: 5887709
    Abstract: A beverage mug and beverage can holder has slots to accommodate the handles of two mugs, which are nested together with the handles adjacent so as to conserve space. Mugs are supported by the top edges of gussets spaced around the inside bottom. Cans, smaller in diameter than mugs, are retained between the gussets. Cans with foam liners are supported by the gussets. For marine use, the holder will drain liquids to a collection point.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: March 30, 1999
    Inventor: David M. Thompson
  • Patent number: 5729689
    Abstract: A method and apparatus are described for enabling a first node, which utilizes a first naming protocol, to obtain an network address of another node from a naming service that does not provide addresses in accordance with the first naming protocol. A network embodying the present invention includes a naming proxy agent. A first node in the network obtains network addresses corresponding to node names according to a first naming protocol, and a second node conducts network naming operations according to a second naming protocol that is incompatible with the first naming protocol. As a result, the first node cannot by itself obtain the address of the second node by means of a node name query under the first naming protocol.However, the naming proxy agent receives a first naming query transmitted by the first node according to the first naming protocol that includes the name of the second node.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: March 17, 1998
    Assignee: Microsoft Corporation
    Inventors: James E. Allard, James Stewart, Pradeep Bahl, David M. Thompson