Patents by Inventor Robert C. Purnell

Robert C. Purnell 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: 8677681
    Abstract: A method of modulating the development stage of strobili growing on a gymnosperm tree comprises: (a) installing a protective covering over one or more strobili bud(s), wherein the type of protective covering is selected to delay or advance strobili development; and (b) maintaining the protective covering over the strobili bud(s) for a time period sufficient to delay or advance the development stage of the covered strobili buds in comparison to the development stage of naturally growing, uncovered, control strobili.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 25, 2014
    Assignee: Weyerhaeuser NR Company
    Inventors: Robert C. Purnell, Daniel F. Morrow, Leon C. Burris
  • Publication number: 20130000186
    Abstract: In one aspect, the invention provides a method of modulating the development stage of strobili growing on a gymnosperm tree comprising: (a) installing a protective covering over one more strobili bud(s), wherein the type of protective covering is selected to delay or advance strobili development; and (b) maintaining the protective covering over the strobili bud(s) for a time period sufficient to delay or advance the development stage of the covered strobili buds in comparison to the development stage of naturally growing, uncovered, control strobili.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: WEYERHAEUSER NR COMPANY
    Inventors: Robert C. Purnell, Daniel F. Morrow, Leon C. Burris
  • Patent number: 6039191
    Abstract: A rack, from which kitchen utensils and other things may be hung for storage, is comprised of side panels and end panels. Bars that support hooks from which the utensils hang run lengthwise between the end panels. Stiffeners run lengthwise in a groove along each side panel, and the stiffener ends fit snugly into grooves of the end panels, to provide strong corner joints. Cross pieces, to support at intermediate points the bars, run lengthwise between the side panels. They are fastened to the side panels using dowels, while fitting tightly against the underside of opposing stiffeners. Rack side panels may be initially fabricated as precursors having standard length and width dimensions, to then be easily modified at the factory or in the field, and to enable the making of custom length and width racks. The rack design features enable economic factory fabrication, so racks can be shipped as knocked down units that can be conveniently modified and assembled in the field.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: March 21, 2000
    Inventor: Robert C. Purnell
  • Patent number: 4314646
    Abstract: Disclosed herein is a device for hanging plants which comprises a pair of spaced board-like members. Disposed perpendicularly between and joining the boards are dowels. The dowels have apertures therethru for receiving and supporting a rod. The dowels are so spaced such that the rod passes through aligned apertures in the dowels. The rod is disposed at least midway within and between the spaced boards so that the hook of a hanger for a hanging plant, or the like, suspended from the rod, is substantially hidden from view.In an alternative embodiment, a fluorescent fixture may be disposed about the dowels so as to provide lighting for the plants.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: February 9, 1982
    Inventor: Robert C. Purnell