Patents by Inventor David Warren Porter

David Warren Porter 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).

  • Rack type pipe feeder for a pipe fusion machine
    Patent number: 9393739
    Abstract: For use in loading heavy sticks of plastic pipe into a pipe fusion machine, a pipe storage rack with hydraulically powered pipe stick dispensers and stands allows sticks of pipe stored on the rack to roll gravitationally onto a rocking V-shaped dispenser cam disposed between the rack and the fusion machine loading path for one-stick-at-a-time loading onto powered track and roller stands which enable Cartesian manipulation of the stick into the fusion machine. The cam is adjustable to suit pipe stick diameters ranging from 20? to 48?. Many sticks can be stored at one time, releasing heavy lifting equipment and operators to work elsewhere. The process requires only one operator using a pendant controller and the pipe sticks are handled by heavy equipment only when being loaded onto the racks.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: July 19, 2016
    Assignee: McElroy Manufacturing , Inc.
    Inventors: James R. Perrault, David Warren Porter, Brandon William Jackman, William Barton Draeger, Bobby L. Murray, Timothy M. Thoman, Arthur H. McElroy, II
  • RACK TYPE PIPE FEEDER FOR A PIPE FUSION MACHINE
    Publication number: 20140219770
    Abstract: For use in loading heavy sticks of plastic pipe into a pipe fusion machine, a pipe storage rack with hydraulically powered pipe stick dispensers and stands allows sticks of pipe stored on the rack to roll gravitationally onto a rocking V-shaped dispenser cam disposed between the rack and the fusion machine loading path for one-stick-at-a-time loading onto powered track and roller stands which enable Cartesian manipulation of the stick into the fusion machine. The cam is adjustable to suit pipe stick diameters ranging from 20? to 48?. Many sticks can be stored at one time, releasing heavy lifting equipment and operators to work elsewhere. The process requires only one operator using a pendant controller and the pipe sticks are handled by heavy equipment only when being loaded onto the racks.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: McElroy Manufacturing, Inc.
    Inventors: James R. Perrault, David Warren Porter, Brandon William Jackman, William Barton Draeger, Bobby L. Murray, Timothy M. Thoman, Arthur H. McElroy, II
  • Rack type pipe feeder for a pipe fusion machine
    Patent number: 8690517
    Abstract: For use in loading heavy sticks of plastic pipe into a pipe fusion machine, a pipe storage rack with hydraulically powered pipe stick dispensers and stands allows sticks of pipe stored on the rack to roll gravitationally onto a rocking V-shaped dispenser cam disposed between the rack and the fusion machine loading path for one-stick-at-a-time loading onto powered track and roller stands which enable Cartesian manipulation of the stick into the fusion machine. The cam is adjustable to suit pipe stick diameters ranging from 20? to 48?. Many sticks can be stored at one time, releasing heavy lifting equipment and operators to work elsewhere. The process requires only one operator using a pendant controller and the pipe sticks are handled by heavy equipment only when being loaded onto the racks.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: April 8, 2014
    Inventors: James R. Perrault, David Warren Porter, Brandon William Jackman, William Barton Draeger, Bobby L. Murray, Timothy M. Thoman, Arthur H. McElroy, II