Patents by Inventor John Doherty

John Doherty 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: 6619089
    Abstract: A method and apparatus for forming annularly-corrugated tubes and cables utilizing a multiple gear corrugating head which is rotated about the tube or cable, to be corrugated as the tube or cable is drawn through the head. Two or more of the gears each have a different prime number of gear teeth which form the corrugation.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: September 16, 2003
    Inventor: John Doherty
  • Publication number: 20030137585
    Abstract: In a machine vision system, four images are acquired from overlapping fields of view. There is sub-pixel movement between images of either half pixel or third pixel. The images are combined to provide a single image of higher resolution. The camera and the object are displaced relative to each other by movement of the camera on a gantry system or by tilting the lens with respect to the camera.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 24, 2003
    Inventors: James Mahon, John Doherty, Andrew Harton, Patrick Smith, Mark Dullaghan, Richard Frank Toftness
  • Patent number: 6567277
    Abstract: An electronic device such as an AC adaptor includes a cable spool. A cable connector is provided on a housing for the AC adaptor. A cable extends from the connector. The cable may be wrapped around the housing in a spool-like manner for storing the cable on the housing. The cable is confined in a spool by a pair of spaced-apart guide members which extend from the housing.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: May 20, 2003
    Assignee: Dell Products L.P.
    Inventors: John Doherty, Jeffrey W. Godsted, Leo Quintero
  • Patent number: 6538578
    Abstract: A system and apparatus for detecting and evaluating surface conditions on a road surface and atmospheric conditions simultaneously from a moving vehicle as disclosed. The system comprises a sensor for detecting the presence of deposited material on a road surface, a detector for determining one or more characteristics of the deposited material such as its freezing temperature, process means for converting a detected signal and display means for displaying the condition of the road surface, and a sensor for detecting falling precipitation. An embodiment of the present invention includes a remote sensing apparatus which utilizes electromagnetic radiation to sense actual surface material conditions, temperatures, and composition and local atmospheric conditions at the vehicle as it is moving over a travel surface.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: March 25, 2003
    Inventor: John A. Doherty
  • Patent number: 6535141
    Abstract: A system and apparatus for detecting and evaluating surface conditions on a road surface and atmospheric conditions simultaneously from a moving vehicle. The system comprises a sensor for detecting the presence of deposited material on a road surface, a detector for determining one or more characteristics of the deposited material such as its freezing temperature, process means for converting a detected signal and display means for displaying the condition of the road surface, and a sensor for detecting falling precipitation. An embodiment of the present invention includes a remote sensing apparatus which utilizes electromagnetic radiation to sense actual surface material conditions, temperatures, and composition and local atmospheric conditions at the vehicle as it is moving over a travel surface.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 18, 2003
    Inventor: John A. Doherty
  • Publication number: 20020178773
    Abstract: A method and apparatus for forming annularly-corrugated tubes and cables utilizing a multiple gear corrugating head which is rotated about the tube or cable, to be corrugated as the tube or cable is drawn through the head. Two or more of the gears each have a different prime number of gear teeth which form the corrugation.
    Type: Application
    Filed: May 9, 2002
    Publication date: December 5, 2002
    Inventor: John Doherty
  • Patent number: 6318062
    Abstract: A wire twisting machine and method provide a randomly varying lay to pairs of twisted wires forming a cable. A pair of wires are fed into a motor driven bow mechanism which twists the wires at a given rate of speed. The bow winding speed is sensed to provide a signal to a control system employing a computer which generates a randomly varying signal between a selected minimum and maximum range. The random signal is applied to an oscillator which provides a varying frequency signal to a power supply unit. A pulsed direct voltage signal then controls a stepping motor which applies the randomly varying lay signal to vary the speed of the capstan winding the wires with respect to the independent bow speed. This varies the length of lay of the twisted wires within controlled limits.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: November 20, 2001
    Assignee: Watson Machinery International, Inc.
    Inventor: John Doherty
  • Publication number: 20010032448
    Abstract: A wire twisting machine and method provide a randomly varying lay to pairs of twisted wires forming a cable. A pair of wires are fed into a motor driven bow mechanism which twists the wires at a given rate of speed. The bow winding speed is sensed to provide a signal to a control system employing a computer which generates a randomly varying signal between a selected minimum and maximum range. The random signal is applied to an oscillator which provides a varying frequency signal to a power supply unit. A pulsed direct voltage signal then controls a stepping motor which applies the randomly varying lay signal to vary the speed of the capstan winding the wires with respect to the independent bow speed. This varies the length of lay of the twisted wires within controlled limits.
    Type: Application
    Filed: March 23, 2001
    Publication date: October 25, 2001
    Inventor: John Doherty
  • Patent number: 6173904
    Abstract: An apparatus and system, preferably mounted on a service vehicle, provides synchronized application of fluid materials, either solid or liquid, to a vehicle travel surface in proportional amounts or spatially distributed proportions in response to user defined requirements and/or operation of a vehicle mounted component in response to conditions encountered in real time. A first embodiment is a vehicle mounted apparatus and system for coordinated application of a plurality of materials to a surface simultaneously and in desired proportions and/or widths automatically and/or selectively. A second embodiment includes a granular material distribution device and includes a plurality of liquid spray headers and pumping means.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: January 16, 2001
    Inventors: John A. Doherty, Charles A. Kalbfleisch
  • Patent number: 5904296
    Abstract: An apparatus and system, preferably mounted on a service vehicle, provides synchronized application of fluid materials, either solid or liquid, to a vehicle travel surface in proportional amounts or spatially distributed proportions in response to user defined requirements and/or operation of a vehicle mounted component in response to conditions encountered in real time. A first embodiment is a vehicle mounted apparatus and system for coordinated application of a plurality of materials to a surface simultaneously and in desired proportions and/or widths automatically and/or selectively. A second embodiment includes a granular material distribution device and includes a plurality of liquid spray headers and pumping, means.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: May 18, 1999
    Assignee: John A. Doherty
    Inventors: John A. Doherty, Charles A. Kalbfleisch
  • Patent number: 5745051
    Abstract: A system and apparatus for detecting and evaluating surface conditions on a road surface from a moving vehicle as disclosed. The system comprises a sensor means for detecting the presence of deposited material on a road surface, detecting means for determining one or more characteristics of the material such as its freezing temperature, process means for converting a detected signal and display means for displaying the condition of the road surface. A first embodiment of the invention includes a collection device for collecting a sample of the surface materials and one or more sensors to detect the freezing point of the material. A second embodiment includes a collection chamber which can be isolated and its contents frozen so that the freeze temperature may be obtained irrespective of knowing the composition of the material.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: April 28, 1998
    Inventors: John A. Doherty, Charles A. Kalbfleisch, Donald P. Keathley, William J. Collins
  • Patent number: 5619193
    Abstract: A system and apparatus for detecting and evaluating surface conditions on a road surface from a moving vehicle as disclosed. The system comprises a sensor means for detecting the presence of deposited material on a road surface, detecting means for determining one or more characteristics of the material such as its freezing temperature, process means for converting a detected signal and display means for displaying the condition of the road surface. A first embodiment of the invention includes a collection device for collecting a sample of the surface materials and one or more sensors to detect the freezing point of the material. A second embodiment includes a collection chamber which can be isolated and its contents frozen so that the freeze temperature may be obtained irrespective of knowing the composition of the material.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: April 8, 1997
    Assignee: John A. Doherty
    Inventors: John A. Doherty, Charles A. Kalbfleisch, Donald P. Keathley, William J. Collins
  • Patent number: 5186396
    Abstract: A granular and liquid material spreading system mounted on a vehicle. Granular material is moved from a hopper to a delivery system using hydraulic pumps and motors. The hydraulic system also drives a liquid delivery system. A control system including a material computer is provided to control the amount of granular material and liquid material applied to a surface. The feed rate of liquid delivery is controlled electronically by programming the material computer as a function of the feed rate of the granular material. The liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengaged the liquid delivery system. Initiation of liquid delivery reduces the feed rate of granular material by a variably selected percentage.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: February 16, 1993
    Inventors: James J. Wise, John A. Doherty
  • Patent number: 5096125
    Abstract: A granular and liquid material spreading system mounted on a vehicle. Granular material is moved from a hopper to a delivery means using hydraulic pumps and motors. The hydraulic system also drives a liquid delivery system. A control system is provided to control the amount of granular material and liquid material applied to a surface. The feed rate of liquid delivery is dependent upon the feed rate of the granular material. The liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengage the liquid delivery system. Initiation of liquid delivery reduces the feed rate of granular material by a variably selected percentage.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: March 17, 1992
    Inventors: James J. Wise, John A. Doherty
  • Patent number: 5069392
    Abstract: A granular and liquid material spreading system mounted on a vehicle is disclosed. Granular material is moved from a hopper to delivery means by a hydraulic system. The hydraulic system for a granular material delivery system is selectively used by a liquid delivery system to operate a liquid pump to move the liquid material to the delivery position. The amount of liquid delivered is dependent upon the feed rate of the granular material delivery system. Variation of the liquid feed rate may be changed within a predetermined range. The level of liquid may be sensed to disengage the liquid delivery system. In one embodiment, the hydraulic system fluid is diverted to power the liquid delivery system, slowing the feed rate of the granular delivery system and the amount of granular material used. In another embodiment the hydraulic system is used to control the liquid feed rate.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: December 3, 1991
    Inventors: James J. Wise, John A. Doherty
  • Patent number: 4639301
    Abstract: An apparatus is described which makes possible the precise sputter etching and imaging of insulating and other targets, using a finely focused beam of ions produced from a liquid metal ion source. This apparatus produces and controls a submicron beam of ions to precisely sputter etch the target. A beam of electrons directed on the target neutralizes the charge created by the incident ion beam. Imaging of the target surface and ultra-precise control of the etching process is achieved by monitoring the particles that are sputtered from the target surface.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: January 27, 1987
    Assignee: Micrion Limited Partnership
    Inventors: John A. Doherty, Billy W. Ward, David C. Shaver
  • Patent number: 4514717
    Abstract: An externally threaded grounded metal housing mounting a snap acting disc at a closed end is shown to receive an electrically insulative body mounting an "L" shaped movable contact member having an upstanding leg biased into contact with the internal surface of the housing wall and a laterally extending movable contact leg with a tongue cut and bent out from the leg and engageable with the snap acting disc. A terminal is pushed into a slot of the body and mounts at its free distal end a stationary contact. The mounting surface for the movable contact member is skewed relative to the lid terminal slot in order to obtain a longer effective movable contact arm.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: April 30, 1985
    Assignee: Texas Instruments Incorporated
    Inventor: John Doherty, Jr.
  • Patent number: 4460124
    Abstract: An improved thermally actuated valve assembly having a double throw feature comprises three ports in which two passage routes are provided through the valve; one passage route connecting ports one and two and the other passage route connecting ports two and three. A snap acting strip type bimetallic member vertically mounted in the valve serves as a thermal element and valve member to cause a change in communication from one of the passage routes to the other.
    Type: Grant
    Filed: May 13, 1983
    Date of Patent: July 17, 1984
    Assignee: Texas Instruments Incorporated
    Inventors: Jean-Pierre Chalmin, John Doherty, Jr.
  • Patent number: 4414524
    Abstract: A thermally responsive switch is particularly adapted to perform a plurality of electrical control functions on an automotive engine in response to changes in engine temperature. The switch is characterized by a structure permitting the switch operating temperatures to be easily matched to the requirements of specific automotive applications. The switch mounts first electrical contacts on an insulating support and incorporates spring means mounted on a carrier, second contacts mounted on the spring means, and thermally responsive, snap-acting bimetallic discs or the like which are easily disposed between the respective spring means and the carrier to move the second contacts relative to the carrier in response to temperature change.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: November 8, 1983
    Assignee: Texas Instruments Incorporated
    Inventor: John Doherty, Jr.
  • Patent number: 4393834
    Abstract: A thermally responsive electrical switch for a fast idle control in an automotive engine has two thermally responsive snap acting discs disposed in an open-ended well in a thermally conducting housing. A switch means having contacts movable between open and closed circuit positions is disposed in the open end of the well and the discs are arranged to snap at respective first and second temperatures. Resilient conductors are mounted on the switch means and are electrically connected to the respective contacts. A terminal member which completes the low cost assembly is secured to the housing to press terminals of different selected types against the resilient conductors to electrically connect the terminals to the respective switch contacts and to resiliently hold the switch means in place in the housing.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: July 19, 1983
    Assignee: Texas Instruments Incorporated
    Inventor: John Doherty, Jr.