Patents by Inventor Curtis Harrison

Curtis Harrison 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: 11015644
    Abstract: A pinned roller bearing assembly having a plurality of pinned rollers, wherein each of the pins has a first threaded end received in a threaded aperture of a first support ring, and a second unthreaded and shouldered end received in a countersunk and unthreaded aperture of a second support ring. Each end of each pin extends through its respective support ring and is rivetingly domed outside the support ring to secure its position and configuration. The pinned roller bearings and support rings are disposed within an outer and inner race.
    Type: Grant
    Filed: June 6, 2020
    Date of Patent: May 25, 2021
    Assignee: Engineered Bearing Technology, Inc.
    Inventor: Curtis Harrison
  • Publication number: 20200386265
    Abstract: A pinned roller bearing assembly and cage wherein the pin has two ends, a first end received in a first support ring, and a second end received in a second support ring, the pin comprising a threaded portion at one of the first or second ends, and the other end which is not threaded, or at least one shouldered end for engaging a countersunk support ring, or both a threaded end and one or both ends being shouldered.
    Type: Application
    Filed: June 6, 2020
    Publication date: December 10, 2020
    Applicant: EBT, Inc.
    Inventor: Curtis Harrison
  • Patent number: 6283195
    Abstract: Tooling for handling molten or hot solid aluminum and its alloys wherein the tooling is made of a passivated titanium aluminide (TiAl) intermetallic compound having a thin passivating surface oxide film formed in-situ thereon by contact with an oxygen-bearing atmosphere at elevated temperature. The surface oxide film passivates and renders the tooling non-wetted by and non-reactive with molten aluminum and its alloys and non-bonded to hot solid aluminum and its alloys.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: September 4, 2001
    Assignee: Metal Casting Technology, Incorporated
    Inventors: George D. Chandley, Curtis A. Harrison, Qi Zhao
  • Patent number: 5839888
    Abstract: A pump system has first and second pumps. Each pump has a housing, which housing has an inboard end and an outboard end. The pumps are arranged so that the inboard ends are adjacent to each other. The inboard ends each have a crankshaft, while the outboard ends each have an output manifold. Each crankshaft is connected to a plunger by way of a connecting rod and a crosshead. The crosshead reciprocates inside of a cylinder. The crosshead has an axis that is coplanar with a rotational axis of the crankshaft. The connecting rod is connected to the crosshead by way of a wrist pin. The wrist pin is offset from the cylinder axis in order to allow the respective pump to be compact in length. The first and second pumps are on a trailer. In the first pump, the wrist pin is offset on one side of the respective cylinder axis, while in the second pump, the wrist pin is offset on the opposite side of the respective cylinder axis.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: November 24, 1998
    Assignee: Geological Equipment Corp.
    Inventor: Curtis Harrison