Patents by Inventor Daniel Calabra

Daniel Calabra 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).

  • Pressure vessel with improved gasket valve
    Patent number: 4999165
    Abstract: The disclosed pressurized vessel has a door seal which is pressurized by a steam supply. A diaphragm actuated solenoid valve is connected between the steam supply and the door seal. The diaphragm solenoid valve precludes the door seal from depressurizing unless the pressure within the vessel is within a preselected pressure tolerance. Also, a check valve is provided to preclude the door seal from completely depressurizing if the pressure at the steam supply is interrupted.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: March 12, 1991
    Assignee: MDT Corporation
    Inventors: Daniel Calabra, Charles O. Hancock, Brian Avant
  • Surgical light
    Patent number: D278937
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: May 21, 1985
    Assignee: Sybron Corporation
    Inventors: Donald H. Peeler, Daniel Calabra
  • Surgical light
    Patent number: D279611
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: July 9, 1985
    Assignee: Sybron Corporation
    Inventors: Donald H. Peeler, Daniel Calabra