Patents by Inventor John H. Garthwaite

John H. Garthwaite 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: 5290175
    Abstract: A modular higher density communications coupling system including a universal platform for supporting multiple connectors from a single outlet hole is disclosed. The platform includes a main body member having a registration ridge extending forward of the main body member for extending into a standard sized outlet hole. A pair of apertures adjacent to each other extend through the main body member and are generally surrounded by the registration ridge. A pair of connector housings are attachable to the rear of the platform in alignment with the apertures for housing connectors. A pair of retaining members on two sides of the apertures hold the connector housings in position. A pair of support members extend rearwardly from the main body of the platform on the other two sides of the apertures. A termination plate is mounted in the support members, the termination plate having a plurality of electrical couplings for connecting the wire from a wall to the connector.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: March 1, 1994
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Scott T. Robinson, William K. Denning, John M. Redfield, John H. Garthwaite
  • Patent number: 5157708
    Abstract: A handheld battery-powered telecommunications test instrument for monitoring the status of a pair of wires. A tone-generating circuit generates a tone signal in response to the user manually selecting operation in a tone-generating mode. The instrument monitors the pair of wires to determine whether an on-hook, off-hook or ringing signal is present on the wires, and if present, generates an interrupt control signal through a microprocessor. Logic circuitry connected to the microprocessor results in connecting and disconnecting the tone-generating circuit and the pair of wires to selectively apply the tone signal to the wires. In response to the control signal and the user selecting the tone-generating mode, the microprocessor connects the tone-generation circuit to the pair of wires if no control signal is generated, and disconnects the tone-generating circuit if the control signal is generated.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: October 20, 1992
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: John H. Garthwaite, Clay A. Stocklin, David M. Rollins
  • Patent number: 5106325
    Abstract: A modular higher density communications coupling system including a universal platform for supporting multiple connectors from a single outlet hole is disclosed. The platform includes a main body member having a registration ridge extending forward of the main body member for extending into a standard sized outlet hole. A pair of apertures adjacent to each other extend through the main body member and are generally surrounded by the registration ridge. A pair of connector housings are attachable to the rear of the platform in alignment with the apertures for housing connectors. A pair of retaining members on two sides of the apertures hold the connector housings in position. A pair of support members extend rearwardly from the main body of the platform on the other two sides of the apertures. A termination plate is mounted in the support members, the termination plate having a plurality of electrical couplings for connecting the wire from a wall to the connector.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: April 21, 1992
    Assignee: Leviton Manufacturing Co. Inc.
    Inventors: Scott T. Robinson, William K. Denning, John M. Redfield, John H. Garthwaite
  • Patent number: 5007860
    Abstract: A modular higher density communications coupling system including a universal platform for supporting multiple connectors from a single outlet hole is disclosed. The platform includes a main body member having a registration ridge extending forward of the main body member for extending into a standard sized outlet hole. A pair of apertures adjacent to each other extend through the main body member and are generally surrounded by the registration ridge. A pair of connector housings are attachable to the rear of the platform in alignment with the aperatures for housing connectors. A pair of retaining members on two sides of the apertures hold the connector housings in position. A pair of support members extend rearwardly from the main body of the platform on the other two sides of the apertures. A termination plate is mounted in the support members, the termination plate having a plurality of electrical couplings for connecting the wire from a wall to the connector.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: April 16, 1991
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Scott T. Robinson, William K. Denning, John M. Redfield, John H. Garthwaite