Patents by Inventor Donald E. Sjolin

Donald E. Sjolin 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: 20220331633
    Abstract: The method of maintaining a first flow rate through a first valve in a fluid delivery system, the fluid delivery system including a and a plurality of fluid valves in fluid communication with the pump, and a controller controlling the pressure generated by the pump and the position of the plurality of valves. The method includes providing the first flow rate of a fluid pressurized by the pump through the first valve, receiving a request for a second flow rate of the fluid through a second valve, determining a predicted effect on the first flow rate based on the request, adjusting at least one of the position of the first valve and the pressure generated by the pump to maintain the first flow rate based on the predicted effect, and adjusting the position of the second valve to provide the second flow rate of the fluid through the second valve.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Inventors: Eric N. Combs, Donald E. Sjolin, Frederic J. Einstein, Kevin McGuire, Lee R. Jones, John E. McLoughlin, Neocles G. Athanasiades, Kiam Meng Toh, Kyle A. Stoops
  • Patent number: 11379090
    Abstract: A firefighting monitor that has a first section, a second section joined to the first section by a first pivot connection, and a plurality of ball bearings positioned in the first pivot connection between a pair of bearing seats. Wherein, the bearing seats define an arc of contact with each of the plurality of ball bearings, the center of the arc of contact defining a tangent angled with respect to a flow axis defined by the first pivot connection.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 5, 2022
    Assignee: Elkhart Brass Manufacturing Company, Inc.
    Inventors: Eric N. Combs, Donald E. Sjolin, Frederic Einstein, Kevin McGuire, Lee R. Jones, John E. McLoughlin, Neocles G. Athanasiades, Kiam Meng Toh, Kyle A. Stoops
  • Patent number: 9399151
    Abstract: A control system for a fire fighting device is provided. The control system may include a controller configured to operably connect over a network to a first valve controller controlling a status of a first valve in response to an input from the controller, a second valve controlling a status of a second valve in response to an input from the controller, and a governor operably controlling a power source in response to an input from the controller. The control system may further comprise a touchscreen display operably connected to the controller, the display configured to display the status of the first and second valves and configured to receive an input from a user, wherein controller generates a manipulatable icon displayed on the touchscreen display, a manipulation of the icon generating the input from the controller to the first valve controller.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 26, 2016
    Assignees: Elkhart Brass Manufacturing Company, Inc., Fire Research Corp.
    Inventors: Eric N. Combs, Donald E. Sjolin, Fred Einstein, Kevin McGuire, Lee R. Jones, John E. McLoughlin, Neocles G. Athanasiades, Kiam Meng Toh, Kyle A. Stoops
  • Patent number: 8820424
    Abstract: A fire fighting nozzle includes a nozzle body with an inlet, an outlet, and a passageway extending from the inlet to the outlet. A stem is located in the passageway about which fluid flows when fluid is flowing through the passageway. And, a projecting body projects outwardly from the nozzle body away from the stem, which at least partially fills the space beyond the nozzle outlet where water exits the nozzle assembly.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: September 2, 2014
    Assignee: Elkhart Brass Manufacturing Company, Inc.
    Inventors: Todd Brian Lozier, Donald E. Sjolin
  • Publication number: 20100319479
    Abstract: A rotary control for controlling an electromechanical device includes a body adapted to mount to a surface and an outer ring pivotally connected to the body. The outer ring has an outer perimeter with a generally undulating profile having peaks and valleys, and has an outer face with a plurality of protrusions extending from the outer face, with the protrusions substantially corresponding with the peaks. The rotary control also includes a sensor adapted to sense rotation of the outer ring and output a signal corresponding to the rotation, and a control adapted to receive the signal and control the electromechanical device in response to the rotation of the outer ring.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 23, 2010
    Applicant: ELKHART BRASS MANUFACTURING COMPANY, INC.
    Inventors: Donald E. Sjolin, Eric Nathaniel Combs, Todd Brian Lozier, John E. McLoughlin, Neocles G. Athanasiades, Toh K. Meng
  • Publication number: 20100243278
    Abstract: A vehicular peripheral device control system includes a peripheral device, an input device, and a hydraulic control apparatus. The input device is coupled to the hydraulic control apparatus and when actuated generates an input to the hydraulic control apparatus. The peripheral device is coupled to the hydraulic control apparatus, which actuates the peripheral device in response to the input device generating the input to the hydraulic control apparatus.
    Type: Application
    Filed: June 9, 2010
    Publication date: September 30, 2010
    Applicant: Elkhart Brass Manufacturing Company, Inc.
    Inventor: Donald E. Sjolin
  • Publication number: 20100032491
    Abstract: A fire fighting nozzle includes a nozzle body with an inlet, an outlet, and a passageway extending from the inlet to the outlet. A stem is located in the passageway about which fluid flows when fluid is flowing through the passageway. And, a projecting body projects outwardly from the nozzle body away from the stem, which at least partially fills the space beyond the nozzle outlet where water exits the nozzle assembly.
    Type: Application
    Filed: July 7, 2009
    Publication date: February 11, 2010
    Applicant: ELKHART BRASS MANUFACTURING COMPANY, INC.
    Inventors: Todd Brian Lozier, Donald E. Sjolin
  • Publication number: 20090321092
    Abstract: A method of forming a fire fighting monitor includes forming a core in the shape of a non-linear waterway of a monitor body, applying a composite material over the core, and then curing the composite material to thereby form the fire fighting monitor body.
    Type: Application
    Filed: June 19, 2009
    Publication date: December 31, 2009
    Applicant: Elkhart Brass Manufacturing Company, Inc.
    Inventors: Eric Nathaniel Combs, Donald E. Sjolin, Todd Brian Lozier