Patents by Inventor James William McDonald

James William McDonald 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: 8511520
    Abstract: A fluent material dispensing system comprising: a bottle, a plunger engaged inside the bottle, and a dispensing mechanism having a lever for operation of the plunger for fluid expulsion. The plunger may frictionally engage the bottle to a degree sufficient for holding the plunger in place against a force applied due to return motion of the lever. The dispensing mechanism may comprise a cap for attachment to an end of the bottle opposite a fluid outlet and a handle attached to the cap, the lever pivotally coupled to the cap, the lever and the handle aligned with the bottle. The dispensing mechanism may comprise a portioning mechanism configured to limit distance travelled by the lever from the rest position to the engaged position to a defined amount, thereby limiting expulsion of the fluid to a corresponding defined portion.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: August 20, 2013
    Assignee: JDi Design Inc.
    Inventors: Adrian Albert Van Wijk, Samuel Charles Richards, James William McDonald
  • Publication number: 20120228334
    Abstract: A fluent material dispensing system comprising: a bottle, a plunger engaged inside the bottle, and a dispensing mechanism having a lever for operation of the plunger for fluid expulsion. The plunger may frictionally engage the bottle to a degree sufficient for holding the plunger in place against a force applied due to return motion of the lever. The dispensing mechanism may comprise a cap for attachment to an end of the bottle opposite a fluid outlet and a handle attached to the cap, the lever pivotally coupled to the cap, the lever and the handle aligned with the bottle. The dispensing mechanism may comprise a portioning mechanism configured to limit distance travelled by the lever from the rest position to the engaged position to a defined amount, thereby limiting expulsion of the fluid to a corresponding defined portion.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 13, 2012
    Inventors: Adrian Albert Van Wijk, Samuel Charles Richards, James William McDonald
  • Patent number: D698616
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 4, 2014
    Assignee: JDI Design, Inc.
    Inventors: Adrian Albert Van Wijk, Samuel Charles Richards, James William McDonald