Patents by Inventor Theodore A. Dumas

Theodore A. Dumas 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).

  • Patent number: 4959212
    Abstract: A non-toxic, oxidizing-energizing composition suitable for use as an accelerator of the carbohydrate oxidative degradation metabolic process or the direct oxidation of glucose which consists essentially of, by weight, (A) 10% to 95% of flavine-adenine dinucloeotide coenzyme (FAD) and (B) 10% to 95% of at least one coenzyme or enzyme selected from the group consisting of flavine mononucleotide coenzyme (FM), ubiquinone coenzyme (UBQ), uridine 5'-triphosphate coenzyme (UTP), triphosphopyridine nucleotide coenzyme (TPN), diphosphopyridine nucleotide coenzyme (DPN), adenosine triphosphate coenzyme (ATP), uridine diphosphate glucose coenzyme (UDPG), guanosine 5'-triphosphate coenzyme (GTP), glucose oxidase enzyme (GOD) and mixtures thereof; and (C) 0% to less than 50% of an enzyme selected from the group consisting of fructosediphosphate aldolase, phosphofructokinase, hexokinase, glucokinase, glucose 6-phosphate dehydrogenase, glucose phosphate isomerase, d-glucose-phosphotransferase and mixtures thereof, said com
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: September 25, 1990
    Inventors: Alexandra Stancesco, Apostol Spiliadis, Theodore Dumas
  • Patent number: 4682181
    Abstract: A flush-mounted radiating antenna is disclosed which can be electronically switched to produce a rotating directional field with no moving parts in the antenna element itself or with the appropriate electronics in the entire mechanism. This is accomplished by utilizing pie-shaped sections on the flush surface which are capacitively coupled to a central feed element and shorting some of the pie-shaped capacitively coupled elements to a ground plane whereby the normally omnidirectional pattern is perturbed to a directional pattern.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: July 21, 1987
    Assignee: Rockwell International Corporation
    Inventors: Theodore A. Dumas, Leslie V. Griffee
  • Patent number: 4640575
    Abstract: A flexible flap, having an elastic memory, which flap is used to normally cover a lightwave connector so as to prevent laser radiation emissions from the connector. The flexible nature of the flap allows the forcible deflection thereof, so that a mating connector can be attached to the normally covered one, and yet when the mating connector is removed the flap will automatically return to the covering position. In addition to preventing the emission of laser radiations, the flap can reduce contamination materials, such as dust, from covering the end of the fiber optic material.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: February 3, 1987
    Assignee: Rockwell International Corporation
    Inventor: Theodore A. Dumas
  • Patent number: 4475109
    Abstract: An inflatable antenna for use with a buoy at sea is disclosed. Webs in the inflatable compartment of the antenna have parts metallized to form the feed portions of the radiating elements. Areas of the top inner surface of the inflatable compartment are metallized to form capacitive loading portions of the radiating elements. Conductive inner and outer surfaces of the bottom of the inflatable compartment form a ground plane coupled to the sea water. When the elements of the antenna are fed in phase quadrature, the antenna provides hemispherical coverage including sufficient gain at the horizon.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: October 2, 1984
    Assignee: Rockwell International Corporation
    Inventors: Theodore A. Dumas, Leslie V. Griffee
  • Patent number: 4408208
    Abstract: A corrugated feed horn and its method of manufacture is disclosed for circularly polarized SHF (super high frequency) and EHF (extra high frequency) parabolic antennas operating in the 12-100 GHz range. A plurality of laminations are dip braze bonded, providing alternate fins and grooves in an inner conical configuration. Extremely thin fins are enabled without expensive parts or fabrication methods.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: October 4, 1983
    Assignee: Rockwell International Corporation
    Inventor: Theodore A. Dumas
  • Patent number: 4260992
    Abstract: A radio navigation antenna system suitable for use in an aircraft is disclosed. The fed element of the system is stationary, being at one end of a coaxial conductor which extends through a hollow shaft of a motor. Mounted around the hollow shaft is a ground plane disc capacitively coupled to the outer sleeve of the coaxial conductor, thereby avoiding the use of brushes in the system. A cylindrical dielectric antenna support is mounted on the ground plane disc around the fed element. A T-shaped reflector is formed by a conductive layer on the cylindrical surface of the antenna support.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: April 7, 1981
    Assignee: Rockwell International Corporation
    Inventors: Mardis V. Anderson, Theodore A. Dumas