Patents by Inventor David Chapman

David Chapman 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).

  • Publication number: 20070236049
    Abstract: There is disclosed a modular assembly and method of forming the assembly. The assembly is particularly suitable as at least part of a rear end of a transportation or automotive vehicle. The assembly preferably includes one or more plastic structure adhesively secured to one or more metal structures.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 11, 2007
    Inventors: David Chapman, Luis Lorenzo, Keith Kauffman, Ashish Kotnis
  • Publication number: 20070178871
    Abstract: A communication system comprises first and second devices (2,3) having respective housings (5,6); a data trans-mission line (8) for transmitting data between the devices in a reflective signalling format; and conversion means (4) connectable to the line externally of the housings (5,6) for converting data between a reflective signalling format and another format. A method of signalling between first and second devices (2,3) linked by a transmission line (8) and of sensing a security violation of the line (8) comprises the steps of (a) transmitting a signal from the first device to the second device, reflecting the signal back to the first device in a manner corresponding to a first bit sequence, receiving the signal thus reflected at the first device, and comparing this signal with the transmitted signal to determine whether there has been a security violation of the line and to extract the first bit sequence.
    Type: Application
    Filed: March 31, 2004
    Publication date: August 2, 2007
    Inventors: Christopher Cowdery, David Chapman, John Wood
  • Publication number: 20070107651
    Abstract: A transition device for providing a smooth corner of a pair of angular oriented interconnected windshields on a boat, the boat having a forward facing or front windshield and a side facing windshield, both the windshields being mounted in a formed aluminum molding. The transition device comprises a first element attached to the molding of the forward facing windshield at an upper end of the joint and terminating at the joint in a ball and a second element attached to the molding of the side facing windshield at the upper end of the joint and terminating in a socket. The ball and the socket are shaped and sized to fit together to form a smooth transition at the upper end of the joint so that the corner joint appears to have a ball and socket joint.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 17, 2007
    Inventors: Ernest Smith, David Chapman
  • Publication number: 20070006801
    Abstract: The use of surfactants that do not themselves act as dopants and are isoelectronic with either the group III or group V host atoms during OMVPE growth significantly reduces the incorporation of background impurities such as carbon, oxygen, sulfur and/or silicon. For example, the use of the surfactants Sb or Bi significantly reduces the incorporation of background impurities such as carbon, oxygen, sulfur and/or silicon during the OMVPE growth of III/V semiconductor materials, for example GaAs, GaInP, and GaP layers. As a result, an effective method for controlling the incorporation of impurity atoms is adding a minute amount of surfactant during OMVPE growth.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Inventors: Gerald Stringfellow, Alexander Howard, David Chapman
  • Patent number: 7155207
    Abstract: A system and method of analyzing communications between a calling party and a called party is disclosed. In an embodiment of a method of the present invention, the method includes receiving a communication at a service provider network, recording the communication, analyzing a voice content portion of the recorded communication to determine if the voice content portion contains a keyword stored in a database, and forwarding the recorded communication to a law enforcement agency if the keyword is detected in the voice content portion. In an embodiment of a system of the present invention, the system includes a buffer memory for receiving a recorded communication from a service provider network and a content analysis system coupled to the buffer memory.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: December 26, 2006
    Assignee: Nextel Communications Inc.
    Inventors: David Chapman, Ben Levitan
  • Publication number: 20060257247
    Abstract: A brake system for a ram air turbine (RAT) causes the RAT to slow or lock if the RAT achieves an over-speed condition with a centrifugal force operated trigger system that actuates a compression type brake pack to slow or lock the turbine hub
    Type: Application
    Filed: May 16, 2005
    Publication date: November 16, 2006
    Inventors: William Seidel, David Chapman
  • Patent number: 7095642
    Abstract: A defect current contribution elimination technique may be suitable for dynamic random access memories (DRAMs) and other memory devices. A defect current can be eliminated by using an isolation circuit (106) between bitlines (102-0 and 102-1) and an associated sense amplifier circuit (104). Isolation circuit (106) can be controlled by programmable elements, such as fusible links, which are blown at wafer test to isolate the defective bitlines from the sense amplifier circuit. Isolated, defective bitlines may initially float, but based upon the type of defect, such bitlines can be resistively tied to another element, and as a result no DC current will flow. According to another implementation, controllable devices are placed between wordlines (206) and the wordline driver circuits (226-y). A current path through a defective wordline can be similarly cut-off.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 22, 2006
    Assignee: Cypress Semiconductor Corporation
    Inventors: Richard Parent, David Chapman
  • Patent number: 7022155
    Abstract: A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween, (c) means for introducing a plasma gas into the space between the first and second electrodes, (d) means for generating a plasma arc in the space between the first and second electrodes, wherein the first electrode has a channel (7) running therethrough, an outlet of the channel exiting into the space between the first and second electrodes, and wherein means are provided for feeding solid material (20) through the channel to exit therefrom via the outlet into the space between the first and second electrodes.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 4, 2006
    Assignee: Tetronics Limited
    Inventors: David Edward Deegan, Chris David Chapman, Timothy Paul Johnson
  • Publication number: 20060053010
    Abstract: A system and method of analyzing communications between a calling party and a called party is disclosed. In an embodiment of a method of the present invention, the method includes receiving a communication at a service provider network, recording the communication, analyzing a voice content portion of the recorded communication to determine if the voice content portion contains a keyword stored in a database, and forwarding the recorded communication to a law enforcement agency if the keyword is detected in the voice content portion. In an embodiment of a system of the present invention, the system includes a buffer memory for receiving a recorded communication from a service provider network and a content analysis system coupled to the buffer memory.
    Type: Application
    Filed: June 22, 2005
    Publication date: March 9, 2006
    Applicant: NEXTEL COMMUNICATIONS, INC.
    Inventors: David Chapman, Ben Levitan
  • Patent number: 6970032
    Abstract: A power supply detecting input receiver circuit (300) can include a multiplexing capability that can select one of at least two power supplies during a non-critical timing period. Such selection of a power supply can reduce both the standby and the active current of input receiver circuit (300). In one arrangement, an input receiver circuit (300) can include a comparator (310), a latch (316), and a select circuit (304). A latch (316) can be enabled to indicate a selection of a supply upon a circuit power-up, as but one example. A method is disclosed that includes comparing at least two supply voltages, setting a latch to indicate a selected supply, and providing the selected supply to an input receiver. The receiver output signal may be voltage-translated to a suitable internal supply level.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 29, 2005
    Assignee: Cypress Semiconductor Corporation
    Inventors: Chris Smith, David Chapman, Tim Fiscus
  • Publication number: 20050252152
    Abstract: The invention is directed generally toward a fastener for use in assembly of steel truss members which can be installed at an angular orientation relative to the truss member surface. The fastener comprises a shank having a tip and a head. The fastener shank further has threaded portions for engaging truss members and plate elements if present. The tip of the shank can have a self-tapping point. The head of the fastener has a tool engagement surface and a seating surface. The seating surface has a configuration that allows for a wider distribution of force at a truss assembly contact point. In particular, the configuration includes an arcuate contour that is generally convex.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 17, 2005
    Inventors: Richard Belinda, David Chapman
  • Publication number: 20050155311
    Abstract: A truss fastener which includes a shaft having a head and a tip. Threading extends along the shaft from the tip end toward the head end of the shaft. The threading is interrupted, abbreviated, and/or otherwise separated by wings projecting from the surface of the shaft. The interrupting projection extends in a generally oblique orientation to the center axis of the fastener.
    Type: Application
    Filed: January 14, 2005
    Publication date: July 21, 2005
    Inventors: Richard Belinda, David Chapman
  • Publication number: 20050144012
    Abstract: A system having a plurality of communication devices, at least one of which comprises a control device, a half duplex communication network to transmit data between the plurality of communication devices, and a translation engine to translate voice communications spoken into a first one of the communication devices into at least one other language, wherein when the control device of one of the communication devices is activated, the corresponding communication device secures a floor control of the network, and while the floor control is secured, the communication device communicates with the translation engine such that words spoken into the communication device are translated, and the network transmits the translated communications to selected ones of the plurality of communication devices.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 30, 2005
    Inventors: Alireza Afrashteh, David Chapman, Mar Tarres
  • Publication number: 20050124475
    Abstract: A method of making an exercise machine from a pair of spaced apart, laser-cut sheets of metal of substantial identical shape and connected together to form a relatively flat frame, which comprises the steps of first examining a pre-existing exercise machine of the type having a three dimensional frame made from horizontal vertical and transverse frame members, all the frame members being interconnected to form the three dimensional frame upon which are mounted the necessary handles, levers, pistons, crank arms, operating rods and linkage to provide a given exercise for the operator of that exercise machine, the step of examining being performed to determine, from the three dimensional frame, the vertical and horizontal extent of the pre-existing machine, secondly, making a two dimensional pattern whose vertical and horizontal extent conforms to the vertical and horizontal extent of the pre-existing machine based upon the examination thereof, thirdly, cutting a pair of steel side frame members from steel sheet
    Type: Application
    Filed: December 3, 2003
    Publication date: June 9, 2005
    Inventor: David Chapman
  • Patent number: 6796107
    Abstract: The apparatus comprises a powder dispenser portion with an outlet port which opens into a loading chamber. A slide gate valve assembly selectively closes the port and a disc valve assembly is provided above the slide gate valve assembly. Containers are loaded into the loading chamber and are located beneath the port and are then purged with inert gas. The slide gate valve assembly and disc valve assembly are then opened to allow container to be filled with ultra fine powder.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: September 28, 2004
    Assignee: Tetronics Limited
    Inventors: David Edward Deegan, Timothy Paul Johnson, Christopher David Chapman
  • Patent number: 6744006
    Abstract: A twin plasma torch assembly includes two plasma torch assemblies supported in a housing. Each of the two plasma torch assemblies has an electrodes. Plasma gas is introduced into a processing zone around the two electrodes. A shroud gas is introduced to surround the plasma. A feed tube is provided to supply feed material to the processor.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: June 1, 2004
    Assignee: Tetronics Limited
    Inventors: Timothy Paul Johnson, David Edward Deegan, Christopher David Chapman, John Kenneth Williams
  • Publication number: 20030160033
    Abstract: A twin plasma torch assembly comprising two plasma torch assemblies (10, 20) supported in a housing. Each torch has first and second spaced electrodes. Plasma gas is introduced into a processing zone between two electrodes. A shroud gas is introduced to surround the plasma. A feed tube (112) is provided to supply feed material to the processor.
    Type: Application
    Filed: April 1, 2003
    Publication date: August 28, 2003
    Inventors: Timothy Paul Johnson, David Edward Deegan, Christopher David Chapman, John Kenneth Williams
  • Publication number: 20030101690
    Abstract: The apparatus comprises a powder dispenser portion with an outlet port which opens into a loading chamber (6). A slide gate valve assembly (10) selectively closes the port and a disc valve assembly (5) is provided above the slide gate valve assembly. Containers (19) are loaded into the loading chamber (6) and are located beneath the port and are then purged with inert gas. The slide gate valve assembly (10) and disc valve assembly (5) are then opened to allow container (19) to be filled with ultra fine powder.
    Type: Application
    Filed: November 4, 2002
    Publication date: June 5, 2003
    Inventors: David Edward Deegan, Timothy Paul Johnson, Christhoper David Chapman
  • Publication number: 20030097903
    Abstract: A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween, (c) means for introducing a plasma gas into the space between the first and second electrodes, (d) means for generating a plasma arc in the space between the first and second electrodes, wherein the first electrode has a channel (7) running therethrough, an outlet of the channel exiting into the space between the first and second electrodes, and wherein means are provided for feeding solid material (20) through the channel to exit therefrom via the outlet into the space between the first and second electrodes.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 29, 2003
    Inventors: David Edward Deegan, Chris David Chapman, Timothy Paul Johnson
  • Patent number: 6361922
    Abstract: The present invention discloses optical recording elements having optical recording layers containing tetra dyes. The dyes have metallized azo dianionic dye with cationic dye counterions. The recording layer has a thickness from 225 to 300 nm.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: March 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Derek David Chapman, James C. Fleming, Ramanuj Goswami, Csaba Andras Kovacs