Patents by Inventor Pat Y. Mah

Pat Y. Mah 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: 6893141
    Abstract: A light generating flashlight system device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric dampers are located each at the end of a support system sleeve which is sized to fit within a main housing to stabilize all internal support within a sealed unit. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: May 17, 2005
    Inventor: Pat Y. Mah
  • Patent number: 6848385
    Abstract: An underwater motive device utilizes a plastic rear housing which includes a battery storage space sealed with a tight fit to provide sealing, a pressured removal system is provided to pressurize the sealed battery chamber to enable the front wall to be removed. The motor is microprocessor controlled for safety by providing a slight delay before energizing the motor, and by providing some time in residence at a slow speed before switching to a higher speed. The result is a safe underwater motive device which will not accidentally become power actuated before the user is able to securely grasp and direct it, and which will not go to full speed except from a low speed to give the user a chance to stabilize himself in the water. Further, the control circuitry includes other features to provide both long battery life, good serviceable usage and battery preservation and motor preservation.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: February 1, 2005
    Inventor: Pat Y. Mah
  • Patent number: 6808288
    Abstract: A light generating flashlight system device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric dampers are located each at the end of a support system sleeve which is sized to fit within a main housing to stabilize all internal support within a sealed unit. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: October 26, 2004
    Inventor: Pat Y. Mah
  • Patent number: 6729744
    Abstract: A light generating device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric bumpers are located each at the end of the tubular chamber which may be inside or outside the flashlight. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 4, 2004
    Inventor: Pat Y. Mah
  • Publication number: 20040079272
    Abstract: An underwater motive device utilizes a plastic rear housing which includes a battery storage space sealed with a tight fit to provide sealing, a pressured removal system is provided to pressurize the sealed battery chamber to enable the front wall to be removed. The motor is microprocessor controlled for safety by providing a slight delay before energizing the motor, and by providing some time in residence at a slow speed before switching to a higher speed. The result is a safe underwater motive device which will not accidentally become power actuated before the user is able to securely grasp and direct it, and which will not go to full speed except from a low speed to give the user a chance to stabilize himself in the water. Further, the control circuitry includes other features to provide both long battery life, good serviceable usage and battery preservation and motor preservation.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Inventor: Pat Y. Mah
  • Publication number: 20040008510
    Abstract: A light generating flashlight system device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric dampers are located each at the end of a support system sleeve which is sized to fit within a main housing to stabilize all internal support within a sealed unit. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 15, 2004
    Inventor: Pat Y. Mah
  • Publication number: 20030184997
    Abstract: A light generating flashlight system device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric dampers are located each at the end of a support system sleeve which is sized to fit within a main housing to stabilize all internal support within a sealed unit. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Application
    Filed: March 19, 2003
    Publication date: October 2, 2003
    Inventor: Pat Y. Mah
  • Publication number: 20030185000
    Abstract: A light generating device utilizes a large centrally located magnet which is mounted to slide past a magnet pickup or current induction wire which may be preferably mounted at a center point of travel in a tubular housing having a tubular chamber through which the magnet travels. A pair of elastomeric bumpers are located each at the end of the tubular chamber which may be inside or outside the flashlight. The result is a device which both facilitates the manual movement of the flashlight body so that the magnet slides past the center magnet pickup or current induction wire, and also conserves the residual momentum of the magnet once it has traveled past the magnet pickup or current induction wire by providing a bumper and spring to conserve some of the mechanical energy going in the other direction. Ninety second of manual activation enables about five minutes of illumination.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventor: Pat Y. Mah
  • Patent number: 6625088
    Abstract: A pin display first embodiment utilizes a cammed two differently dimensioned cam to press a pin support forward to make it even or clear it, followed by a flattened portion to enable a pin support to move back into gentle contact with a belt having raised numerals which generally advance based upon a continuously driven motor. A third position on the cam brings the pin support forward to a third, rest position away from the belt and at which the mechanism rests, typically for one minute. The subject matter can be time, temperature, barometric pressure, or for symbols and pictures for a story telling application. The device can be configured to display any dimensional image and can present a sequence of images. A pin display of a second embodiment of the invention utilizes push-pull solenoids to control pre-specified segmented areas of pins to an outward or inward position.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: September 23, 2003
    Assignee: Daka Development Ltd. (Hong Kong Corporation)
    Inventors: Pat Y. Mah, Robert Bruce Tiller
  • Patent number: D502698
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: March 8, 2005
    Assignee: Daka Development Ltd.
    Inventor: Pat Y. Mah
  • Patent number: D506176
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: June 14, 2005
    Assignee: Daka Research Inc.
    Inventors: Pat Y. Mah, Alexander Joseph Kalogroulis
  • Patent number: D507776
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: July 26, 2005
    Inventor: Pat Y. Mah
  • Patent number: D511340
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: November 8, 2005
    Assignee: Daka Development Ltd.
    Inventor: Pat Y. Mah
  • Patent number: D471506
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: March 11, 2003
    Inventor: Pat Y. Mah
  • Patent number: D481482
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: October 28, 2003
    Inventor: Pat Y. Mah
  • Patent number: D481817
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 4, 2003
    Inventor: Pat Y. Mah
  • Patent number: D481818
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 4, 2003
    Inventor: Pat Y. Mah
  • Patent number: D484627
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: December 30, 2003
    Inventor: Pat Y. Mah
  • Patent number: D496657
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: September 28, 2004
    Inventor: Pat Y. Mah
  • Patent number: D498865
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: November 23, 2004
    Inventor: Pat Y. Mah