Patents by Inventor Carl A. Johnson

Carl A. Johnson 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: 4039716
    Abstract: Glass fibers are coated with a size comprising emulsified particles of a prepolymer having an organo functional silane locked into the protective colloid layer surrounding the particles. In that state silane hydrolysis and polymerization is inhibited. The silane coated prepolymer particles have an overlay of an ethoxylated fatty alkyl radical. The size also contains a lubricant comprising emulsified particles of a white oil coated with a mixture of ethoxylated fatty alcohols, ethoxylated fatty acids, and a diethoxylated fatty amine. The water phase of the size involves a dissolved cationic silane, as for example, gamma-aminopropyltriethoxysilane and dissolved nonionic lubricant, as for example, an ethoxylated fatty acid. The preferred emulsifier for the prepolymer is a polyoxypropylene-polyoxyethylene adduct. The size is made by adding an organo functional silane monomer to the emulsion of the prepolymer so that the silane adds to the oil phase.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: August 2, 1977
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Carl A. Johnson
  • Patent number: 3954284
    Abstract: A suspension system for a bicycle having a frame with rearward and forward ends and a fork means rotatably mounted on the forward end thereof and having a pair of downwardly extending fork arms. A pair of arms are pivotally secured to the lower ends of the fork arms and extend forwardly therefrom. A wheel is rotatably secured to and is positioned between the pair of arms. A pair of spring support rods are pivotally secured at their lower ends to the pair of arms and extend upwardly and rearwardly therefrom. A bracket is secured to the fork and extends forwardly therefrom and has the spring support rods movably extending therethrough. An upper pair of springs are mounted on the upper ends of the spring support rods above the bracket and are maintained thereon by acorn nuts or the like. A lower pair of springs are mounted on the spring support rods below the bracket and are maintained in position by an adjustable clamp means secured to and extending between the spring support rods.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: May 4, 1976
    Inventors: Ronald F. Phillips, Philip Carl Johnson