Patents by Inventor John A. Barrs

John A. Barrs 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: 20030113461
    Abstract: The present invention relates to a one-part room temperature vulcanizable organopolysiloxane rubber composition which is VOC free and crosslinks in the presence of moisture to form a coating for the protection of composite high voltage electrodes.
    Type: Application
    Filed: December 14, 2001
    Publication date: June 19, 2003
    Inventors: Farooq Ahmed, Faisal Huda, Seraj ul Huda, John Barr
  • Patent number: 6437039
    Abstract: The present invention relates to a one-part room temperature vulcanizable organopolysiloxane rubber composition which crosslinks in the presence of moisture to form a coating for the corrosion protection of metals. The one-part organopolysiloxane rubber composition comprises the product which is obtained by mixing the following: a) from about 20 to about 98 weight percent of one or more polydiorganosiloxane fluids of the formula R″[(R)2SiO]nR′ in which R is a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical, R′ is a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical, R″ is OH or a monovalent alkyl or alkylene radical having 1 to 8 carbon atoms or a phenyl radical and n has an average value such that the viscosity is from about 1 to about 100,000 centipoise at 25° C.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: August 20, 2002
    Assignee: CSL Silicones Inc.
    Inventors: Farooq Ahmed, Faisal Huda, Seraj ul Huda, John Barr
  • Patent number: 6194991
    Abstract: A remote keyless entry system stores critical data for synchronization in a plurality of memory locations at the receiver. When a transmission is received, the received data is validated using the critical data from a first memory location. In the event that the data in the first memory location is determined to be unusable, the critical data from a second memory location is used. The critical data is rewritten at the first memory location only if the transmission is ultimately determined to be valid.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: February 27, 2001
    Assignee: Lear Corporation
    Inventors: John A. Barrs, Thomas A. Lupinski
  • Patent number: 6050654
    Abstract: The invention relates to an electromagnetic valve arrangement, preferably for a pressure medium of a vehicle braking system, comprising an electromagnet arrangement which is coupled with a valve closing means which can be brought into several positions, a housing with a first, a second, a third, and a fourth connection of which, in a first position, the first and the second connection are in flow connection with each other, and the third and the fourth connection are blocked; in a second position, the first, the second, the third, and the fourth connection are blocked; in a third position, the first and the second connection are blocked, and the third and the fourth connection are connected with each other; and in a fourth position, the first and the third connection are connected with each other, and the second and the fourth connection are blocked.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: April 18, 2000
    Assignee: Lucas Industries Public Limited Company
    Inventors: Helmut Gegalski, Dieter Voges, Stephen Philip John Barr, Leo Gilles
  • Patent number: 5497322
    Abstract: Loads, such as power relays controlling wipers, windows and lights are connected to an automobile battery through individual transistor drives that are controlled by a microcontroller. A switch, connected to the microcontroller, is operated to activate each drive. The microcontroller checks the load characteristic when each drive is activated and inactivated. When the load is inactivated, it is part of a resistance network producing a test voltage that is digitally converted and supplied to the microcontroller, which compares the test voltage to a stored voltage to determine if the load is correct. An analog multiplexer is controlled by the microcontroller to select the voltage produced for each load.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: March 5, 1996
    Assignee: United Technologies Automotive, Inc.
    Inventors: Darrell J. Kolomyski, John A. Barrs
  • Patent number: 5448492
    Abstract: Loads, such as power relays controlling wipers, windows and lights are connected to an automobile battery through individual transistor drives that are controlled by a microcontroller. A switch, connected to the microcontroller, is operated to activate each drive. The microcontroller checks the load characteristic when each drive is activated and inactivated. When the load is inactivated, it is part of a resistance network producing a test voltage that is digitally converted and supplied to the microcontroller, which compares the test voltage to a stored voltage to determine if the load is correct. An analog multiplexer is controlled by the microcontroller to select the voltage produced for each load.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: September 5, 1995
    Assignee: United Technologies Automotive, Inc.
    Inventors: Darrell J. Kolomyski, John A. Barrs
  • Patent number: 5194789
    Abstract: A memory mirror system having a mirror 19, two constant speed motors 16,18 each controlling an axis of mirror movement, position feedback signals 26,28 from each motor, switch inputs 12, a diagnostic push button 40, and an electronic controller 10, is provided with a diagnostic procedure after a self-test push button 40 has been depressed by automatically driving the mirror to the center of movement when manual movement is not requested, thereby allowing system level failures, such as position feedback sensor failures, to be detected quickly by visual inspection of mirror movement as the mirror attemps to return to the origin, without altering existing memory settings or disconnecting the controller 10 from the system. When manual movement is not requested for a predetermined period of time, the diagnostic procedure is prevented from running.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: March 16, 1993
    Assignee: United Technologies Automotive, Inc.
    Inventor: John A. Barrs
  • Patent number: 5142209
    Abstract: A memory mirror system having a mirror 19 mounted within concave-shaped mirror movement boundaries, two constant speed motors 16, 18 each controlling an axis of mirror movement, position feedback signals 26,28 from each motor, push button inputs 12 and an electronic controller 10, is provided with automatic mirror repositioning that drives the mirror from a start position to a memory position in minimum time without colliding with any mirror movement boundaries by driving the mirror position toward the target along the axis farthest from the target and driving the mirror toward the origin along the other axis until the mirror position is within a predetermined safe region along that axis or the current position is 45 degrees from the target, then driving the mirror in the direction of the target along an axis for which the distance to the target is not less than the distance to the target along the other axis or in which the direction toward the target is also toward the origin.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: August 25, 1992
    Assignee: United Technologies Corporation
    Inventor: John A. Barrs
  • Patent number: 5111125
    Abstract: A "memory" mirror system having a mirror 19 mounted within convex-shaped mirror movement boundaries, two constant speed motors 16,18 each controlling an axis of mirror movement, position feedback signals 26,28 from each motor, push button inputs 12 and an electronic controller 10, is provided with automatic mirror repositioning that drives the mirror from a start position to a "memory" position in minimum time without colliding with any mirror movement boundaries by turning ON the motor, in the direction of the target, whose movement axis is the greatest distance from the target and turning ON the other motor, in the direction of the target, if the direction toward the target is also toward the center of the mirror movement pattern (i.e., away from the nearest boundary).
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: May 5, 1992
    Assignee: United Technologies Automotive
    Inventor: John A. Barrs
  • Patent number: 4531496
    Abstract: A fuel injection pump of the reciprocable plunger type has a pump plunger which is slidable within a pump barrel about which is mounted an angularly movable sleeve. The sleeve and plunger are interconnected so that they can move axially relative to each other but are restrained against relative angular movement. An arm is coupled to the sleeve its inner end lying within a slot in the sleeve, the arm being provided with limbs which lie within a circumferential groove, the arms embracing the sleeve to retain the inner end of the arm within the slot.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: July 30, 1985
    Assignee: Lucas Industries
    Inventors: Gerald S. Thomas, John Punshon, John A. Barr