Patents by Inventor Clifford C. Brown

Clifford C. Brown 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).

  • Safety system for an electrical output panel assembly
    Patent number: 4845593
    Abstract: A safety system for an electrical panel assembly providing receptacles for use with cable connectors. The connectors and receptacles are of the known type having single contacts which lock together when the connector is mated with its receptacle and rotated a partial turn. Polarizing devices are provided in association with each receptacle and connector to assure proper mating. The panel assembly is provided with mechanical interlocking devices determining the order in which the connectors are connected to and disconnected from their receptacles to assure that ground makes first and breaks last. The safety system comprises an AC to DC converter/voltage regulator capable of converting 120 volts to 600 volts AC or DC to 12 volts and 115 volts DC. The converter/regulator has a pair of inputs connected to the contacts of any two power receptacles or the contacts of a neutral receptacle and a power receptacle of the panel.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: July 4, 1989
    Assignee: Cam-Lok, Inc.
    Inventors: Clifford C. Brown, William M. Hanks