Patents by Inventor P. Halstead

P. Halstead 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: 11603948
    Abstract: An animal watering valve includes a housing having an upstream end, a downstream end, a bore extending therebetween, a valve element and a valve actuator located at least in part in the bore, and a plug disposed within the bore upstream of the valve element. The plug includes a lattice structure extending along a length of the plug. The valve element may be a diaphragm disposed within the bore to separate the bore into upstream and downstream portions. The valve actuator has a stem with a stem body extending downstream from a stem head and through an outlet of the housing. The diaphragm includes a sealing surface with first and second annular ridges and a groove disposed therebetween. A stem hat having a cap and disk is coupled to a downstream end of the stem. The disk extends radially from the stem at a location upstream of the outlet.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 14, 2023
    Assignee: Avidity Science, LLC
    Inventors: Michael P. Halstead, Matthew C. Grulich, Rebecca M. Fowler, Thomas Clark, Peter S. Planton
  • Publication number: 20190383423
    Abstract: An animal watering valve includes a housing having an upstream end, a downstream end, a bore extending therebetween, a valve element and a valve actuator located at least in part in the bore, and a plug disposed within the bore upstream of the valve element. The plug includes a lattice structure extending along a length of the plug. The valve element may be a diaphragm disposed within the bore to separate the bore into upstream and downstream portions. The valve actuator has a stem with a stem body extending downstream from a stem head and through an outlet of the housing. The diaphragm includes a sealing surface with first and second annular ridges and a groove disposed therebetween. A stem hat having a cap and disk is coupled to a downstream end of the stem. The disk extends radially from the stem at a location upstream of the outlet.
    Type: Application
    Filed: March 13, 2019
    Publication date: December 19, 2019
    Inventors: Michael P. Halstead, Matthew C. Grulich, Rebecca M. Fowler, Thomas Clark, Peter S. Planton
  • Publication number: 20060143765
    Abstract: A method of making a face mask including the steps of providing a plurality of lengths of Grade 2, commercially pure titanium wire, having a diameter of from about 0.21 to about 0.24 inches; forming each length at room temperature to a desired bend angle by bending the member at room temperature using rotary bending apparatus to a first bend angle that is from about 1.25 to about 1.35 times greater than the desired bend angle; and welding each of the thus formed lengths to at least one other of the lengths in an ambient, oxygen containing environment.
    Type: Application
    Filed: February 9, 2006
    Publication date: July 6, 2006
    Inventors: P. Halstead, Garry McNabb, David Wright
  • Patent number: 6772932
    Abstract: An automated welding system utilizing integrally mounted robots within a self-contained and repositionable work station. One or more work tables are shuttled between loading and welding stations. The robot is mounted directly adjacent the operating stage, thereby drastically reducing the required floor space. The robot arm is designed to be programed to replicate a desired welding operation in an automated fashion.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: August 10, 2004
    Inventor: Scott P. Halstead