Patents by Inventor Robin Sargent

Robin Sargent 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).

  • Optical filter with light source
    Patent number: 11940679
    Abstract: An apparatus is disclosed that includes a switchable optical filter having a layer of switchable material; a light source providing light of a wavelength that causes the switchable material to transition from a faded state to a dark state, or a dark state to a faded state; and a switch for controlling activation of the light source.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: March 26, 2024
    Assignee: Solutia Canada Inc.
    Inventors: Neil Robin Branda, Jeremy Graham Finden, Duhane Lam, Jonathan Ross Sargent, Cynthia Elizabeth Shippam, Douglas Malcolm Wiggin
  • Lifting assembly
    Patent number: 9315365
    Abstract: A pull chain moving assembly is designed to impart directional force on an endless-loop pull chain of a chain hoist. The assembly has a housing retaining a chain moving mechanism, which includes a chain pocket wheel and a pair of idler pulley assemblies mounted on opposite sides of the chain pocket wheel and adjacent thereto. Segments of the pull chain are received between the chain pocket wheel and the adjacent idler pulley guide, causing the pull chain to train through the chain moving mechanism. An electric motor rotates the chain pocket guide to facilitate movement of the pull chain and ease of lifting and lowering a load with the chain hoist.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 19, 2016
    Inventor: Robin Sargent
  • Lifting Assembly
    Publication number: 20140353563
    Abstract: A pull chain moving assembly is designed to impart directional force on an endless-loop pull chain of a chain hoist. The assembly has a housing retaining a chain moving mechanism, which includes a chain pocket wheel and a pair of idler pulley assemblies mounted on opposite sides of the chain pocket wheel and adjacent thereto. Segments of the pull chain are received between the chain pocket wheel and the adjacent idler pulley guide, causing the pull chain to train through the chain moving mechanism. An electric motor rotates the chain pocket guide to facilitate movement of the pull chain and ease of lifting and lowering a load with the chain hoist.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventor: Robin Sargent