Patents by Inventor David Caston

David Caston 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: 9802301
    Abstract: A multi-head, rack and pinion driven pulley puller including a rack and pinion drive assembly. The drive assembly includes a body member, a rack shaft, and a pinion gear, enclosed in the body member in one embodiment. The drive assembly further has a head that is adapted to receive a variety of puller assemblies, including a pivoting jaw puller assembly and a forked plate puller assembly.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: October 31, 2017
    Inventor: David Caston
  • Publication number: 20160311095
    Abstract: A multi-head, rack and pinion driven pulley puller including a rack and pinion drive assembly. The drive assembly includes a body member, a rack shaft, and a pinion gear, enclosed in the body member in one embodiment. The drive assembly further has a head that is adapted to receive a variety of puller assemblies, including a pivoting jaw puller assembly and a forked plate puller assembly.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 27, 2016
    Inventor: David Caston
  • Publication number: 20080028978
    Abstract: The present invention relates generally to water based polymer modified asphalt emulsions, their composition, their manufacture and their uses. For example, there is disclosed a method for coating a structure or surface by applying a polymer modified asphalt emulsion coating to the structure or surface. The coating is preferably applied as a two component spray comprising an aqueous catalyst and an aqueous asphalt emulsion. The aqueous catalyst can employ an aqueous acid, preferably citric acid, but can also use an aqueous catalyst comprising an aqueous solution of calcium chloride. Preferably each of the two components are directed through separate ports on a spray nozzle so that they mix together on the fly external to the nozzle before contacting the surface to be coated. This methodology can be used to sound insulate structures, to encapsulate friable materials, to weather coat a structure, and to create a non-corrosive waterproof monolithic membranes.
    Type: Application
    Filed: January 23, 2007
    Publication date: February 7, 2008
    Inventors: Timothy Twining, David Caston, Michael Quinlan