Charles E Konrad, Robert C Clark deceased: Electric vehicle current regulating system. General Electric Company, Ormand R Austin, Arnold E Renner, December 27, 1983: US04423362 (68 worldwide citation)

A control system for a separately excited DC electric traction motor in an electrically powered vehicle incorporates a plurality of current limit functions designed to protect both the motor and control electronics. A time dependent current limit is utilized to permit overcurrent conditions for limi ...

Robert C Clark, Joe C Lambert, Sherrill G Thomas: Electrical braking transitioning control. General Electric Company, Ormand R Austin, Arnold E Renner, James H Beusse, December 27, 1983: US04423363 (62 worldwide citation)

An electrical braking circuit provides smooth transitioning between regenerative and plug braking of a DC electric motor by use of a low ohmic value resistance path to maintain motor torque during transitioning. During initiation of electrical braking, a similar low ohmic resistance path momentarily ...

Robert C Clark: Retractable awning assembly. A & E Plastik Pak Co, Ellsworth R Roston, October 16, 1979: US04171013 (45 worldwide citation)

An awning assembly including an elongated storage case mounted on the side of a recreational vehicle, and having an extended position for providing shade and a retracted position for storage. A lead bar is connected to the outer edge of the awning, and the inner edge is connected to a spring-loaded ...

Joseph K Thompson, Robert C Clark, George H Fielding, Harold F Bogardus: Collector plates for electrostatic precipitators. The United States of America represented by the Secretary of the Navy, R S Sciascia, Philip Schneider, September 4, 1979: US04166729 (25 worldwide citation)

Collector plates for use in the second stage of a two-stage electrostatic ecipitator comprise plates having non-conducting surfaces to which a coating of low conductivity, typically between 300 and 150,000 ohms per square, is affixed. One embodiment of such plates typically comprises a rigid, non-co ...

Robert C Clark, Dean L Kavanagh: Cured phenolic foams. Monsanto Company, Banner Birch McKie & Beckett, August 10, 1993: US05234969 (16 worldwide citation)

Dimensionally stable, cured phenolic foams are described that have a thermal conductivity after 10-days below 0.0185 watts/m .degree.C., a density of 30 to 70 kg/cubic meter and a closed-cell content of at least 85%.

Robert C Clark: Method and apparatus for plug sensing. General Electric Company, Walter C Bernkopf, May 18, 1976: US03958163 (14 worldwide citation)

A method and apparatus for sensing plugging of a DC electric motor comprising logic circuitry responsive to a direction change command for initiating a plugging signal and additional logic circuitry for maintaining said plugging signal as a function of the percentage on time of a variable time ratio ...

Charles E Konrad, Robert C Clark deceased: Electric vehicle protection scheme. General Electric Company, Ormand R Austin, May 15, 1984: US04449080 (13 worldwide citation)

A fault detection and inhibit circuit for a power control unit in an electric traction motor propelled vehicle of the type wherein the power control unit includes a chopper circuit and a bypass contactor for shunting the chopper circuit when its percent conduction exceeds a relatively high value and ...

Robert C Clark, Dean L Kavanagh: Phenolic foams. Monsanto Company, February 13, 1990: US04900759 (6 worldwide citation)

Phenolic foams having a cell structure that is resistant to rupture under pressure and a slow deterioration of thermal insulation value are claimed. These foams can be cured to achieve dimensional stability without substantial adverse affect on their structure.

Robert C Clark: Method for dispersing glass fibers for the preparation of glass filter media. The United States of America represented by the Secretary of the Navy, R S Sciascia, Philip Schneider, Melvin L Crane, September 7, 1976: US03979253 (4 worldwide citation)

Beta Glass fibers are dispersed in a solution containing hydrochloric acid nd a hydrophobic fumed silicon dioxide treated with a silane thereby forming a slurry which is subjected to a sonic probe whereafter other glass fibers are mixed into said slurry and the mixture is formed into a glass fiber f ...