Patents by Inventor Henry Laughlin

Henry Laughlin 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).

  • Lance pump with a ram
    Patent number: 9341173
    Abstract: An improved lance pump is disclosed for pumping a pumpable product, particularly lubricant including grease, from a lubricant supply. The pump comprises a head for placement above the supply, a tubular lance structure affixed to the head and extending down into the supply, and a pump tube inside the lance structure that is reciprocated up and down for pumping lubricant from the supply on both upstrokes and downstrokes of the tube. A ram at a lower end of the lance structure is positioned for forcing lubricant up into the tube and past an inlet check valve on a downstroke of the tube.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: May 17, 2016
    Assignee: Lincoln Industrial Corporation
    Inventors: Henry Laughlin, Paul G. Conley
  • Lance Pump with a Ram
    Publication number: 20130156621
    Abstract: An improved lance pump is disclosed for pumping a pumpable product, particularly lubricant including grease, from a lubricant supply. The pump comprises a head for placement above the supply, a tubular lance structure affixed to the head and extending down into the supply, and a pump tube inside the lance structure that is reciprocated up and down for pumping lubricant from the supply on both upstrokes and downstrokes of the tube. A ram at a lower end of the lance structure is positioned for forcing lubricant up into the tube and past an inlet check valve on a downstroke of the tube.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicant: LINCOLN INDUSTRIAL CORPORATION
    Inventors: Henry Laughlin, Paul G. Conley