Patents by Inventor Peter C. Walker

Peter C. Walker 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: 4945860
    Abstract: A stock handling device having a shock unit (5) and means to attach the unit to the animal, said shock unit being arranged to deter the animal when it pushes against an object, having a pressure switch (6) on the head of an animal and a shock unit connected to contact pads (2,4) engageable on the animal in spaced relationship, whereby to apply a deterrent shock to the animal through the contact pads when the pressure switch is actuated.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: August 7, 1990
    Inventor: Peter C. Walker
  • Patent number: 4643315
    Abstract: There is described a carton which comprises first, second, third and fourth rectangular side walls hingedly connected in sequence along parallel edges, first and second pairs of opposed overlapping end walls connected to the edges of first and third walls whereby the side walls and the opposed end walls form an enclosure when the overlapping end walls are adhered together and the first and the fourth rectangular side walls are adherently connected by use of an extended end portion of either the first or fourth rectangular side walls, there being tear lines where each of the pair of end walls are connected to the edges of the first side wall, together with a tear line extending across the fourth side wall to both ends of the adjacent edge of the first side wall, whereby the first side wall can be disengaged from a portion of the fourth side wall and from the end walls so that the carton can be opened flat when all three tear lines are severed.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: February 17, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Howard R. Hopwood, Sylvia A. Lewis, Peter C. Walker