Patents by Inventor Robert B. Isaacs

Robert B. Isaacs 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: 4568929
    Abstract: Liquid crystal display (LCD) devices are becoming more widespread in use because of low power requirements, but such devices are expensive to mount singly at present, being restricted for economy reasons to strips of devices. Elastomeric members are also becoming more widespread in use as a switching member in telephone key pads. The present invention provides a simple and inexpensive mounting of LCD devices individually, in association with switching keys. The key is formed by one protrusion on the elastomeric member. The LCD device is mounted in a recess on the top of another protrusion associated with the key protrusion. Conductive paths through the device mounting protrusion connect at their bottom ends with conductive paths and at the top ends with contacts on the LCD device.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: February 4, 1986
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: 4549776
    Abstract: Communications terminals, such as telephone sets and additional terminals for particular services, are connected together by a connecting member which is attached to each terminal. Conveniently a recess is formed in each side wall of a terminal, the recesses being contiguous when two terminals are positioned side-by-side. A connecting member is positioned in the contiguous recesses, with hook-shaped members extending up through apertures in a top wall of the recesses and extending over, and preferably in close contact with the top wall. The connecting member is attached by pushing the hook-shaped members through the apertures and then sliding it relative to the terminals. The recesses can be wedge-shaped, the connecting member having a similar shape to fit in the recesses.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: October 29, 1985
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: 4433216
    Abstract: A faceplate assembly for a telecommunications terminal is of sandwich structure, having top and bottom members. A plurality of apertures through the members permit passage of pushbuttons and other activating members. Channels open at one end are associated with at least some of the apertures for the introduction of cards, having indicia relating to the associated activating member. The top surface of the top member has a non-glare finish. An opaque background color can be applied to the back surface of the top member, having clear windows aligned with the channels. Indicator areas can be provided adjacent to at least some of the apertures, for provision of lighted indication. These indicator areas can have translucent colored ink applied, on the back surface of the top member, to enhance the lighted indication.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: February 21, 1984
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D273009
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: March 13, 1984
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D276430
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: November 20, 1984
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D284005
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: May 27, 1986
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D284187
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: June 10, 1986
    Assignee: Northern Telecom Limited
    Inventors: Michael Brown, Robert B. Isaacs
  • Patent number: D285440
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: September 2, 1986
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D285441
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: September 2, 1986
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D285558
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: September 9, 1986
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs
  • Patent number: D313230
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: December 25, 1990
    Assignee: Northern Telecom Limited
    Inventor: Robert B. Isaacs