Patents by Inventor Timothy Hand

Timothy Hand 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).

  • Publication number: 20190100888
    Abstract: A hand operated painting cart apparatus is disclosed. The hand operated painting cart apparatus includes a wheeled base comprising a frame, a front pair of wheels connected by a front axle, and a rear pair of wheels connected by a rear axle. The wheeled base including at least one basket. A spray-holster is configured to retain a paint gun to the frame. A fifth-wheel assembly attached to the frame. The fifth-wheel assembly includes a wheel that is configured to engage, and alternatively, disengage with the ground. A handle connected to the wheeled base includes a first-hand trigger and a second-hand trigger. The first-hand trigger is configured to disengage the wheel of the fifth-wheel assembly from the ground. The second-hand trigger is configured to operate a paint gun. The hand operated painting cart apparatus may be useful for painting straight and curved lines on a surface.
    Type: Application
    Filed: June 29, 2018
    Publication date: April 4, 2019
    Inventors: Timothy Hand, Jeanette Hand, Daniel Hand, Stephanie Hand
  • Patent number: 9404573
    Abstract: A hydraulic apparatus and a method of controlling the hydraulic apparatus are disclosed. The hydraulic apparatus includes a first pump having a first fixed displacement, a second pump having a second fixed displacement, and a diverter. The diverter includes a first diverter inlet port fluidly coupled to a discharge of the second pump, a first diverter outlet port fluidly coupled to a discharge of the first pump, and a second diverter outlet port fluidly coupled to a low pressure system, the low pressure system having a fluid pressure lower than a fluid pressure of the discharge of the first pump. The diverter is operable to selectively vary fluid communication between the first diverter inlet port and either the first diverter outlet port or the second diverter outlet port based on a reference pressure.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: Timothy Hand, Ryan Harken, Robert Jackson, David Guetschow, Jeffrey Jones
  • Patent number: 9127437
    Abstract: A hydraulic circuit capable of both a regeneration mode of operation and a full force mode of operation includes a poppet valve controlled by a control valve operating in conjunction with a shuttle valve. The opening of the poppet valve enables the regeneration mode of operation, and the closing of the poppet valve enables the full force mode of operation.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 8, 2015
    Assignee: Caterpillar Inc.
    Inventors: Timothy Hand, Kevin Bacon, Victor Wen
  • Publication number: 20140325971
    Abstract: A hydraulic apparatus and a method of controlling the hydraulic apparatus are disclosed. The hydraulic apparatus includes a first pump having a first fixed displacement, a second pump having a second fixed displacement, and a diverter. The diverter includes a first diverter inlet port fluidly coupled to a discharge of the second pump, a first diverter outlet port fluidly coupled to a discharge of the first pump, and a second diverter outlet port fluidly coupled to a low pressure system, the low pressure system having a fluid pressure lower than a fluid pressure of the discharge of the first pump. The diverter is operable to selectively vary fluid communication between the first diverter inlet port and either the first diverter outlet port or the second diverter outlet port based on a reference pressure.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 6, 2014
    Applicant: Caterpillar Inc.
    Inventors: Timothy Hand, Ryan Harken, Robert Jackson, David Guetschow, Jeffrey Jones
  • Publication number: 20120152107
    Abstract: A hydraulic circuit capable of both a regeneration mode of operation and a full force mode of operation includes a poppet valve controlled by a control valve operating in conjunction with a shuttle valve. The opening of the poppet valve enables the regeneration mode of operation, and the closing of the poppet valve enables the full force mode of operation.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 21, 2012
    Applicant: Caterpillar Inc.
    Inventors: Timothy Hand, Kevin Bacon, Victor Wen