Patents by Inventor Roy Richter

Roy Richter 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: 4931944
    Abstract: A method of scheduling the building sequence of a plurality of objects on an assembly line in order to minimze the cost of building the objects is disclosed. Each object has a plurality of attributes, which together with the position of the object in the sequence, affects the overall cost of the build sequence. A computer is provided with a representation of the object, its attributes, and a procedure for calculating the cost associated with any arrangement of the attributes. An initial build sequence is generated using the representation which has a minimal cost associated with the arrangement of at least one of the attributes. A final build sequence is generated in accordance with a simulated annealing algorithm which utilizes a scoring function that includes the costs defined by the procedure, those costs associated with the attributes being independently weighted in accordance with a temperature varying function.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: June 5, 1990
    Assignee: General Motors Corporation
    Inventors: Roy Richter, Jackson G. Gay, Robert P. Kromer
  • Patent number: 4560042
    Abstract: A method of self-pressurizing a piston-and-rod hydraulic damper by providing at least two gas-generating reactants in the damper's reservoir which reactants are separated one from the other by a temporary barrier. The barrier is subsequently removed, after the damper is filled and sealed, so as to permit the reactants to combine and generate the pressurizing gas. A capsule containing both reactants and a meltable barrier is disclosed.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: December 24, 1985
    Assignee: General Motors Corporation
    Inventors: Jeffrey A. Sell, Tenneille W. Capehart, Roy Richter