Patents by Inventor Daniel W. Thomas

Daniel W. Thomas 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).

  • Thermal imaging refuse separator
    Patent number: 5628409
    Abstract: A garbage separation apparatus utilizes a vibrating conveyor to form a thin layer of individual items in a stream of municipal waste. The individual items of municipal waste are then transferred to conveyor belts in spaced apart relation. The conveyor belt passes the items of municipal waste under an array of infrared lamps. Immediately after being illuminated by the infrared lamps, the items of municipal waste are imaged by an infrared video system. The infrared video camera produces a video image wherein specific colors refer to a specific range of temperatures. The output of this video camera is processed to separate mono-temperature images which are processed so as to drive the actuation of individual vacuum grippers out of an array of vacuum grippers placed over the conveyor belt transporting the items of municipal waste.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: May 13, 1997
    Assignee: Beloit Technologies, Inc.
    Inventor: Daniel W. Thomas
  • Large diameter wafer dryer with adjustable flighting
    Patent number: 5454176
    Abstract: A dryer for drying material carried along and dried by hot gases including a hollow rotatable drying drum with an inlet and a discharge end, means for driving the drum in rotation and a group of flights projecting into the gas flow stream to break up the material and retard the speed of flow of the material with the flowing gases with the flights arranged in one group at the outer periphery inside the drum and the other supported on a central axially extending core member arranged on the ends of arms projecting radially from the core member to provide satellite groups which are adjustable in a radial rotational and axial directions to change their location relative to the gas flow.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: October 3, 1995
    Assignee: Beloit Technologies, Inc.
    Inventors: Richard J. Gobel, Daniel W. Thomas
  • Process for the preparation of monomeric tetramethoxymethylglycoloril
    Patent number: 5180835
    Abstract: Described is an improved process for the preparation of fully methylolated, substantially fully etherified, and substantially monomeric tetramethoxymethlglycoluril useful as a crosslinking agent for powder coatings. The improved process adds after the conventional steps of methylolation and etherification the new steps of acidic distillation followed by an additional etherification.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: January 19, 1993
    Assignee: American Cyanamid Company
    Inventors: William Jacobs, III, Fred W. Luciw, Ilze B. Kancans, Daniel W. Thomas, Leslie Boldizer, Robert G. Lees
  • Oxime ethers of 4,4'-bis(N,N-diethylamino)benzhydrol and pressure-sensitive recording systems containing them
    Patent number: 4435002
    Abstract: Compounds of the formula ##STR1## wherein R and R' are alkyl C.sub.1 -C.sub.4 are useful as color formers for pressure- and heat-sensitive copying materials.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: March 6, 1984
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Daniel W. Thomas
  • Novel glycolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinol
    Patent number: 4403792
    Abstract: Glyolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinols are disclosed as color formers for use in transfer sets.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: September 13, 1983
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Robert J. Manfre, Daniel W. Thomas
  • Particle size reduction of pigments by non-salt milling
    Patent number: 4371643
    Abstract: Pigment compositions prepared from a pigment, a hydroxylic solvent, and a polar polymer may be reduced in particle size by grinding in the absence of a salt to produce a pigment which may be used "as is" without any subsequent treatment.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: February 1, 1983
    Assignee: American Cyanamid Co.
    Inventor: Daniel W. Thomas
  • Oxime ethers of 4,4'-bis(N,N-diethylamino)benzhydrol and pressure-sensitive recording systems containing them
    Patent number: 4351956
    Abstract: Compounds of the formula: ##STR1## wherein R and R.sup.1 are alkyl C.sub.1 -C.sub.4 are useful as color formers for pressure- and heat-sensitive copying materials.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: September 28, 1982
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Daniel W. Thomas
  • Glycolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinol
    Patent number: 4343939
    Abstract: Glyolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinols are disclosed as color formers for use in transfer sets.
    Type: Grant
    Filed: April 22, 1981
    Date of Patent: August 10, 1982
    Assignee: American Cyanamid Company
    Inventors: Frank F. Cesark, Robert J. Manfre, Daniel W. Thomas