Patents by Inventor Jack F. Blevins

Jack F. Blevins 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).

  • Method of forming beater-saturated sheet using carbonate ion
    Patent number: 4853083
    Abstract: Method of forming a beater-saturated non-woven sheet by treating a slurry of papermaking fibers with alum and either sodium carbonate or a mixture of sodium bicarbonate and sodium hydroxide to achieve a pH in the range of about 7-9 followed by adding a binder latex which deposits on the fibers, and finally forming a sheet from the resulting slurry.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: August 1, 1989
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jack F. Blevins
  • Cooling tower fill compositions
    Patent number: 4543384
    Abstract: A composition is disclosed which is preferably produced by the beater saturation process in which water is removed from an aqueous furnish composition comprising asbestos fibers, an acrylic acid polymer and a synthetic rubber binder. The resulting composition can be formed into a fill for cooling towers which has improved capacity for a chlorinated rubber saturant.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: September 24, 1985
    Assignee: Armstrong World Industries, Inc.
    Inventors: Jack F. Blevins, Jay L. Piersol