Patents by Inventor David Serdynski

David Serdynski 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: 20140263707
    Abstract: A nozzle assembly and method of forming an adjustable spray pattern nozzle assembly that is usable with pressure washing systems includes a first body and a second body that are positionally secured relative to one another. The first body includes a fixed shaped orifice that defines the exit of a fluid spray from the nozzle assembly. The second body is disposed upstream of the first body and includes a pressure dependent variable shape orifice. The second body is formed of a resilient material that allows flexure of the second body in response to pressure of the fluid flow. Flexure of the second body manipulates the shape of the variable shape orifice and thereby allows the nozzle assembly to provide various spray patterns without user manipulation of the nozzle assembly.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Generac Power Systems, Inc.
    Inventors: Blake Zernicke, Mir Khan, Greg Wischstadt, David Serdynski
  • Publication number: 20140251390
    Abstract: A pressure washing system that includes a pump configured to generate a pressurized fluid stream and a wand that is connectable to the pressurized discharge of the pump. The wand includes a trigger and a nozzle that are exposed to the pressurized fluid path. The wand includes a treatment fluid path that is isolated from the pump pressurized fluid path. A reservoir configured to receive a treatment agent is disposed in the treatment fluid path and is connected between the water source and an outlet proximate the nozzle. A control is connected to the wand proximate the trigger to allow selective introduction of treatment agent contained in the reservoir to be introduced into the pressurized fluid flow downstream of the nozzle.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Applicant: Generac Power Systems, Inc.
    Inventors: Mir Khan, Greg Wischstadt, David Serdynski
  • Publication number: 20070182158
    Abstract: A generator set. In one embodiment, the generator set includes an internal combustion engine, a DC generator, one or more battery cells, and an inverter. The DC generator is coupled to the engine and produces direct current (“DC”) electricity. The battery cells discharge stored DC electricity and can be recharged using DC electricity from the DC generator. The inverter is electrically connected to the DC generator and to the battery cells. The inverter converts DC electricity produced by the DC generator and DC electricity discharged from the one or more battery cells to alternating current (“AC”) electricity. The AC electricity is available for use by a load.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 9, 2007
    Inventors: Dennis Cerney, David Serdynski, John Marx, Jonathan Zick, Andrew Gongola
  • Publication number: 20070074407
    Abstract: The invention relates to a reciprocating saw that includes a reciprocatable spindle for supporting a saw blade for reciprocating sawing movement. A body houses a motor and a drive mechanism driven by the motor. The drive mechanism selectively drives the spindle and the body supports the spindle. A grip extends outwardly from the body adjacent a center of gravity of the saw so as to allow an operator to operate the reciprocating saw with a first hand and support a workpiece being cut with a second hand.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 5, 2007
    Inventors: David Serdynski, David Griep, Troy Thorson
  • Publication number: 20060117580
    Abstract: In some embodiments, the invention provides a reciprocating saw including a reciprocatable spindle for supporting a saw blade for reciprocating sawing movement and a body housing a motor and a drive mechanism driven by the motor, the drive mechanism selectively driving the spindle, the body having a forward end supporting the spindle, and a battery connectable to the body and having a forward-most point and a lower surface spaced rearwardly from the forward-most point.
    Type: Application
    Filed: October 14, 2005
    Publication date: June 8, 2006
    Inventors: David Serdynski, Boyd Miller, Scott Bublitz, Troy Thorson, Thomas Bednar, David Griep
  • Publication number: 20060119318
    Abstract: A battery pack for powering a cordless power tool. The battery pack includes at least one battery cell operable to supply a discharge current, a switch operable to control the discharge current and a protection device to protect the switch. The protection device is positioned such that the device absorbs a current traveling in a direction opposite to that of the discharge current supplied from the battery cell.
    Type: Application
    Filed: November 4, 2005
    Publication date: June 8, 2006
    Inventors: David Serdynski, Boyd Miller, Scott Bublitz, Troy Thorson, Thomas Bednar, David Griep, Nancy Uehlein-Proctor, Dennis Grzybowski, Jeffrey Holly, Jeffrey Hessenberger, Mark Kubale, Todd Johnson, Jonathan Lobert, Jay Rosenbecker
  • Publication number: 20060112570
    Abstract: A power tool including a body housing a motor and a drive mechanism driven by the motor, the drive mechanism being operable to drive a tool element, the body including a support portion, a battery electrically connectable with the motor such that the battery selectively supplies power to the motor, the battery including an adapter support portion connectable to the body support portion along an adapter attachment axis, one of the support portion of the body and the adapter support portion of the battery including a track and a ramp positioned along the track and angled with respect to the attachment axis, and an other of the support portion of the body and the adapter support portion of the battery including a protrusion engageable with the track to connect the battery to the body and engageable with the ramp.
    Type: Application
    Filed: November 4, 2005
    Publication date: June 1, 2006
    Inventors: David Serdynski, Boyd Miller, Scott Bublitz, Troy Thorson, Thomas Bednar, David Griep, Nancy Uehlein-Proctor, Dennis Grzybowski, Jeffrey Holly, Jeffrey Hessenberger, Mark Kubale, Todd Johnson, Jonathan Lobert, Jay Rosenbecker
  • Publication number: 20050016001
    Abstract: A drive mechanism for a power tool, a power tool and a reciprocating saw. The power tool includes a housing, a motor supported by the housing and including a drive shaft, an output member supported by the housing and adapted to support a tool element, and a drive mechanism. The drive mechanism includes a drive assembly driven by the drive shaft for rotation about an axis, the drive assembly including a gear, a hub selectively driven by the gear for rotation about the axis, and structure positioned between the gear and the hub, the structure selectively transmitting drive force between the gear and the hub and selectively allows relative movement between the gear and the hub. The drive mechanism may also include a drive arm drivingly connected between the drive assembly and the output member of a tool, and the drive arm may be configured to absorb an impact.
    Type: Application
    Filed: June 23, 2004
    Publication date: January 27, 2005
    Applicant: Milwaukee Electric Tool Corporation
    Inventors: David Griep, Richard Jungmann, Roger Neitzell, Thomas James, Thomas Bednar, Troy Thorson, David Serdynski