Patents by Inventor Richard E. Robertson

Richard E. Robertson 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: 5536889
    Abstract: This invention relates to a process for the two-stage hydrogenation of methyl esters which comprises: a) contacting and reacting one or more detergent range methyl esters with hydrogen under predominantly liquid phase hydrogenation conditions at a temperature of less than about 230.degree. C., in the presence of a catalyst comprising a copper compound, a zinc compound, and at least one compound selected from the group consisting of aluminum, zirconium, magnesium, a rare earth and mixtures thereof, to produce an alcohol product and a wax ester product, and b) contacting and reacting the wax ester product from step a) with hydrogen under predominantly liquid phase hydrogenation conditions at a temperature greater than about 220.degree. C. in the presence of a catalyst comprising a copper compound, a zinc compound, and at least one compound selected from the group consisting of aluminum, zirconium, magnesium, a rare earth and mixtures thereof, to produce an alcohol product.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: July 16, 1996
    Assignee: Shell Oil Company
    Inventors: Howard L. Fong, David M. Singleton, Richard E. Robertson
  • Patent number: 4749534
    Abstract: A constant cross-sectional area filament wound composite material leaf spring of optimal energy storage efficiency given the constraints of filament winding and maximum spring width comprises a portion which widens toward the end of the spring, the rate of increase of width of the spring being such that the longitudinal side surfaces of the spring along such portions follow a lateral, outwardly convex curve of radius R.sub.I, wherein R.sub.I at each point is substantially equal to the camber, i.e., the longitudinal radius of curvature R.sub.C at that point.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: June 7, 1988
    Assignee: Ford Motor Company
    Inventor: Richard E. Robertson
  • Patent number: 4575057
    Abstract: A constant cross-sectional area filament wound composite material leaf spring of optional energy storage efficiency given the constraints of filament winding and maximum spring width comprises a portion which widens toward the end of the spring, the rate of increase of width of the spring being such that the longitudinal side surfaces of the spring along such portions follow a lateral, outwardly convex curve of radius R.sub.I, wherein R.sub.I at each point is substantially equal to the camber, i.e., the longitudinal radius of curvature R.sub.C at that point.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: March 11, 1986
    Assignee: Ford Motor Company
    Inventor: Richard E. Robertson
  • Patent number: 4254006
    Abstract: Vinyl dispersion coating compositions comprising (A) 10-40 parts by weight particulate vinyl resin; (B) 5-80 parts by weight liquid plasticizer; (C) 1-20 parts by weight adhesion promotor comprising (i) a thermoplastic phenol-formaldehyde condensate made with molar excess of the phenol and (ii) a compound that provides low molecular weight difunctional linking moieties with increase in temperature, wherein the molar ratio of the linking moieties releasable by (ii) to the total of hydrogen substituted ortho and para positions in (i) is at least about 3:4, preferably 1:1 or greater, and the weight ratio of (A) to (C) is about 40:1-1:1. Preferred plastisol sealing compositions can exhibit improvements in adhesion to hydrophilic surfaces such as glass by as much as up to five times or greater than with conventional adhesion promoters.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: March 3, 1981
    Assignee: Ford Motor Company
    Inventor: Richard E. Robertson