Patents by Inventor C. Rasmussen

C. Rasmussen 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).

  • Apparatus for controlling the supply temperature in a central heating installation
    Patent number: 4192455
    Abstract: The invention relates to thermostatic apparatus for controlling the heating fluid supply temperature in a central heating installation having at least two radiators in different rooms. With each room having a thermostat for controlling the radiators therein, the apparatus operates so that the most active thermostat is given priority in controlling the temperature of the heating fluid.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: March 11, 1980
    Assignee: Danfoss A/S
    Inventors: Hans C. Rasmussen, Knud J. Hallgreen
  • Strontium-silicon-aluminum master alloy and process therefor
    Patent number: 4009026
    Abstract: A strontium-silicon-aluminum master alloy for modifying the eutectic component of eutectic and hypo-eutectic aluminum-silicon casting alloys comprises 3 to 20 percent by weight strontium, 5 to 28 percent by weight silicon, each of said elements being present throughout the recited ranges, and the balance essentially aluminum. The master alloy is prepared by adding a strontium compound (e.g., a strontium silicide) to molten aluminum at a temperature of between about 1450.degree. and 2100.degree. F.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: February 22, 1977
    Assignee: Kawecki Berylco Industries, Inc.
    Inventor: Robert T. C. Rasmussen
  • Phosphorus-bearing master composition for addition to hyper-eutectic silicon-aluminum casting alloys and process therefor
    Patent number: 3953202
    Abstract: A master composition for refining the primary silicon grains of hyper-eutectic silicon-aluminum casting alloys comprises an intimate admixture, in compact form, of pulverized ferrophosphorus and aluminum metal powder.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: April 27, 1976
    Assignee: Kawecki Berylco Industries, Inc.
    Inventor: Robert T. C. Rasmussen
  • Letter feeder
    Patent number: 3944211
    Abstract: A letter feeder including a pair of belts mounted perpendicular to each other for transporting letters positioned thereon, a rotating brush roller and a control assembly both selectively movable to a position to stop a letter being transported by the belts and to separate double letters a selectively operated stop member for controlling the movement of letters from the feeder and a plurality of sensing members for selectively operating the brush roller, the control assembly and the stop member.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: March 16, 1976
    Assignee: NCR Corporation
    Inventors: Donald C. Rasmussen, Richard L. Funkhouser