Patents by Inventor Alan D. Hamilton

Alan D. Hamilton 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).

  • Foam prepared from an unsaturated polyester resin copolymerization monomer, low molecular weight polyol, and isocyanate
    Patent number: 4386166
    Abstract: A process of producing a modified polyester foam having a density of 0.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: May 31, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Gregory P. Peterson, Alan D. Hamilton
  • Process for the manufacture of filament wound pipe using deformable material at the wind stops
    Patent number: 4130451
    Abstract: In the process of manufacturing a pipe by winding either resin-free or resin-impregnated filaments or roving onto a mandrel in layers wherein there are both a resin curing step and changes both in direction and angle of winding of said filaments between layers at fixed locations described hereinafter as wind-stops, the improvement comprising providing a means such as a deformable or movable insert that 1) is capable of substantially withstanding the compressive forces arising from the winding of said filaments or roving upon the mandrel and remaining substantially uneffected by any temperature arising during manufacture of said pipe, 2) is substantially inert to said resin composition, 3) yields to the compressive forces which can arise due to shrinkage of said pipe during said resin curing step, and 4) is adapted to permit said shrinkage so as to avoid the creation of strains in the longitudinal direction of said pipe.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: December 19, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventors: Alan D. Hamilton, Gregory P. Peterson, Walter R. McGuire