Patents by Inventor Keith Eliason

Keith Eliason 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: 10076823
    Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 18, 2018
    Assignee: Graco Minnesota Inc.
    Inventors: Keith Eliason, Nicolas K. Studt
  • Publication number: 20180169835
    Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Applicant: Graco Minnesota Inc.
    Inventors: Keith Eliason, Nicolas K. Studt
  • Patent number: 9962810
    Abstract: A dual control shut off system, such as a dead man system for a blasting system, blasting equipment, or other equipment having both pneumatic and electric safety control circuits, may include an electric dead man's switch or a pneumatic dead man's switch. An embodiment of the dual control dead man system is for wet abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and/or other abrasive blasting operations. Embodiments of the dual control shut off system provide the ability to conveniently switch between an electric and pneumatic shut off system.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: May 8, 2018
    Assignee: Graco Minnesota Inc.
    Inventor: Keith Eliason
  • Patent number: 9925642
    Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: March 27, 2018
    Assignee: Graco Minnesota Inc.
    Inventor: Keith Eliason
  • Publication number: 20170274501
    Abstract: The invention is directed toward wet-abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and other abrasive blasting applications. The wet abrasive basting system has a blast pot that includes a venting system. The venting system may be a self-venting system that allows gases to be vented during charging and prevents gases from accumulating in the blast pot during operation. In wet abrasive blasting systems a slurry is conveyed via a piping system, hoses, etc. to a mixer connected to a source of pressurized gas where slurry and compressed air/gas are combined and directed through the blast hose and blast nozzle.
    Type: Application
    Filed: June 13, 2017
    Publication date: September 28, 2017
    Applicant: Graco Minnesota Inc.
    Inventor: Keith Eliason
  • Patent number: 9737974
    Abstract: The invention is directed toward wet-abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and other abrasive blasting applications. The wet abrasive basting system has a blast pot that includes a venting system. The venting system may be a self-venting system that allows gases to be vented during charging and prevents gases from accumulating in the blast pot during operation. In wet abrasive blasting systems a slurry is conveyed via a piping system, hoses, etc. to a mixer connected to a source of pressurized gas where slurry and compressed air/gas are combined and directed through the blast hose and blast nozzle.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: August 22, 2017
    Assignee: Graco Minnesota Inc.
    Inventor: Keith Eliason
  • Patent number: 9393672
    Abstract: A blasting system having a pressure control circuit that automatically sets and balances pressures in the system to provide a more efficient blasting process. The pressure control circuits provide the ability and enable an operator to more easily and efficiently set the operating pressures of a wet abrasive blasting system, for example, for various blasting processes and easily obtain a consistent blast stream flow. Embodiments of the invention provide an accurate, simple, and intuitive control of the pressure supply system. In specific embodiments, the pressure control circuit controls both the supply pressure to an air driven water pump and the pressurized air supply to slurry mixer by setting only one of these pressures. In certain other embodiments of the pressure control circuit, both pressures may be set through operation of a single, multi-port selector valve.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: July 19, 2016
    Assignee: GRACO MINNESOTA INC.
    Inventor: Keith Eliason
  • Publication number: 20150105001
    Abstract: A blasting system having a pressure control circuit that automatically sets and balances pressures in the system to provide a more efficient blasting process. The pressure control circuits provide the ability and enable an operator to more easily and efficiently set the operating pressures of a wet abrasive blasting system, for example, for various blasting processes and easily obtain a consistent blast stream flow. Embodiments of the invention provide an accurate, simple, and intuitive control of the pressure supply system. In specific embodiments, the pressure control circuit controls both the supply pressure to an air driven water pump and the pressurized air supply to slurry mixer by setting only one of these pressures. In certain other embodiments of the pressure control circuit, both pressures may be set through operation of a single, multi-port selector valve.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: Ecoquip, Inc.
    Inventor: Keith Eliason
  • Publication number: 20150087209
    Abstract: A dual control shut off system, such as a dead man system for a blasting system, blasting equipment, or other equipment having both pneumatic and electric safety control circuits, may include an electric dead man's switch or a pneumatic dead man's switch. An embodiment of the dual control dead man system is for wet abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and/or other abrasive blasting operations. Embodiments of the dual control shut off system provide the ability to conveniently switch between an electric and pneumatic shut off system.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Applicant: GRACO MINNESOTA INC.
    Inventor: Keith Eliason
  • Patent number: 8986074
    Abstract: Wet abrasive systems typically have a combination of equipment, controls, and piping systems that allow various fluid flows to be controlled in order to provide the various operations. A fluid control circuit is used to provide fluid to the correct locations for each operation. A fluid control circuit has a multiport selector valve. The selector valve allows selective fluid communication between the fluid inlet and either a first fluid outlet or a second fluid outlet. A first piping system is in fluid communication with the first fluid outlet and a second piping system is in fluid communication with the second fluid outlet. The fluid control circuit may also have jumper piping system between the first piping system and the second piping system. The combination of a multiport selector and the piping systems provide a convenient blast system to operate.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 24, 2015
    Assignee: GRACO Minnesota Inc.
    Inventor: Keith Eliason
  • Patent number: 8936042
    Abstract: A dual control shut off system, such as a dead man system for a blasting system, blasting equipment, or other equipment having both pneumatic and electric safety control circuits, may include an electric dead man's switch or a pneumatic dead man's switch. An embodiment of the dual control dead man system is for wet abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and/or other abrasive blasting operations. Embodiments of the dual control shut off system provide the ability to conveniently switch between an electric and pneumatic shut off system.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: January 20, 2015
    Assignee: Graco Minnesota Inc
    Inventor: Keith Eliason
  • Publication number: 20140084193
    Abstract: A dual control shut off system, such as a dead man system for a blasting system, blasting equipment, or other equipment having both pneumatic and electric safety control circuits, may include an electric dead man's switch or a pneumatic dead man's switch. An embodiment of the dual control dead man system is for wet abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and/or other abrasive blasting operations. Embodiments of the dual control shut off system provide the ability to conveniently switch between an electric and pneumatic shut off system.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 27, 2014
    Applicant: ECOQUIP, INC.
    Inventor: Keith Eliason
  • Publication number: 20130324016
    Abstract: Wet abrasive systems typically have a combination of equipment, controls, and piping systems that allow various fluid flows to be controlled in order to provide the various operations. A fluid control circuit is used to provide fluid to the correct locations for each operation. A fluid control circuit has a multiport selector valve. The selector valve allows selective fluid communication between the fluid inlet and either a first fluid outlet or a second fluid outlet. A first piping system is in fluid communication with the first fluid outlet and a second piping system is in fluid communication with the second fluid outlet. The fluid control circuit may also have jumper piping system between the first piping system and the second piping system. The combination of a multiport selector and the piping systems provide a convenient blast system to operate.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Applicant: Ecoquip, Inc.
    Inventor: Keith Eliason
  • Publication number: 20130072094
    Abstract: The invention is directed toward wet-abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and other abrasive blasting applications. The wet abrasive basting system has a blast pot that includes a venting system. The venting system may be a self-venting system that allows gases to be vented during charging and prevents gases from accumulating in the blast pot during operation. In wet abrasive blasting systems a slurry is conveyed via a piping system, hoses, etc. to a mixer connected to a source of pressurized gas where slurry and compressed air/gas are combined and directed through the blast hose and blast nozzle.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Inventor: Keith Eliason
  • Publication number: 20120015592
    Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.
    Type: Application
    Filed: April 6, 2011
    Publication date: January 19, 2012
    Inventor: Keith Eliason
  • Patent number: D659595
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 15, 2012
    Assignee: Ecoquip Inc.
    Inventor: Keith Eliason
  • Patent number: D669922
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: October 30, 2012
    Assignee: Ecoquip, Inc.
    Inventor: Keith Eliason
  • Patent number: D706317
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 3, 2014
    Inventor: Keith Eliason