Patents Represented by Attorney Larry B. Feldcamp
  • Patent number: 4049893
    Abstract: This invention relates to a substantially hydrogen saturated hydrocarbon product formed by the hydrogenation of waxy polyethylene alpha-olefin having an average molecular weight of about 350 to about 900. The hydrogenation is conducted at pressures ranging from about 200 psig to about 1000 psig and at hydrogenating temperatures below about 750.degree. F in the presence of a conventional active hydrogenation catalyst. The resulting product may be utilized as a substitute for petroleum wax in the production of various compositions, such as carpet backing compositions, candle wax compositions, pressure sure sensitive tape, paper coating compositions, coatings for fruit, rust preventatives, cosmetics, and similar products. In such compositions the novel hydrogenated alpha olefins may be substituted for petroleum wax as customarily used or it may be used as an extender in any desired proportion with petroleum wax.
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: September 20, 1977
    Assignee: Pennzoil Company
    Inventor: Louis E. Kidwell, Jr.
  • Patent number: 4025400
    Abstract: In an electrolysis system capable of producing particulate crystalline product having limited adherence to the cathodes, a process and apparatus for the continuous recovery of said product directly from the electrolytic cell tank substantially uncontaminated by adhering electrolyte comprising the agitation of the electrolyte to effectively influence and contribute to the control of the crystalline product size and density as well as the structural competence of the dendrites and to cause said product to separate from the cathodes, the collection of the particulate crystalline product on a conveyor transport system located in the bottom part of the electrolytic cell tank, the continuous removal of the particulate crystalline product from the electrolytic cell tank by means of the conveyor transport system, and the transportation of the crystalline particulate product through a washing zone prior to its removal from the electrolytic cell tank to substantially displace the electrolyte liquor from the particulate
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: May 24, 1977
    Assignee: Duval Corporation
    Inventors: Melvin S. Cook, George E. Atwood