Patents by Inventor Robert D. Richmond

Robert D. Richmond 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).

  • Trunk architecture for coupling central offices associated with public switched telephone networks
    Patent number: 7792268
    Abstract: The present invention provides a wireless backbone for use with a public switched telephone network (PSTN). In one embodiment, the wireless backbone includes a central office switch coupled to the PSTN and configured to process a plurality of calls associated with the PSTN. Additionally, the wireless backbone also includes a wireless transmission unit coupled to the central office switch and configured to cooperate with another wireless transmission unit to yield a wireless trunk for communicating the plurality of calls to another central office switch.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: September 7, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Alexandros Cavgalar, Robert D. Richmond, Kenneth R. Stuchlik
  • Anesthesia tube assembly
    Patent number: 5894839
    Abstract: An improved unilimb anesthesia tube assembly includes a rotatable end fitting at the patient end and inner and outer cylinders to which inner and outer unilimb tubes are secured with gas-tight seals. The invention also includes a tool and method for checking the gas-tight seals of the assembly.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: April 20, 1999
    Assignee: PAR Medical, Inc.
    Inventors: Terry G. Rosenkoetter, Robert D. Richmond, Richard B. Hartnett
  • Anesthesia tube assembly
    Patent number: 5722391
    Abstract: An improved unilimb anesthesia tube assembly includes a rotatable end fitting at the patient end and inner and outer cylinders to which inner and outer unilimb tubes are secured with gas-tight seals. The invention also includes a tool and method for checking the gas-tight seals of the assembly.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 3, 1998
    Assignee: PAR Medical, Inc.
    Inventors: Terry G. Rosenkoetter, Robert D. Richmond, Richard B. Hartnett