Patents Represented by Attorney, Agent or Law Firm Schroeder & Siegfried P.A.
  • Patent number: 8264360
    Abstract: A highly sensitive low loss and low flow fluid flow switch is coupled with an automatic timer and/or optional transmitter to indicate the flow of gas to an appliance and to automatically start a reminder timer to turn the appliance off. After a preset time limit has expired, the timer either sounds an alarm or wirelessly triggers an alarm in a remote location. The receiver portion of the wireless timer may be mounted directly to the appliance (grill handle), so that the timer automatically resets when activity (cover opening or closing) is detected, indicating the appliance is still in use. An alarm can also be configured to sound when the grill is attempted to be ignited with the cover closed, thereby avoiding a potential explosion. A biasing attraction magnet is incorporated in the fluid flow switch to offset either the force of gravity or a return spring in order to extend performance to low pressure and low flow applications.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 11, 2012
    Assignee: Waterstrike Incorporated
    Inventor: David A. Struyk
  • Patent number: 8264361
    Abstract: A highly sensitive low loss and low flow fluid flow switch is coupled with an automatic timer and/or optional transmitter to indicate the flow of gas to an appliance and to automatically start a reminder timer to turn the appliance off. After a preset time limit has expired, the timer either sounds an alarm or wirelessly triggers an alarm in a remote location. The receiver portion of the wireless timer may be mounted directly to the appliance (grill handle), so that the timer automatically resets when activity (cover opening or closing) is detected, indicating the appliance is still in use. An alarm can also be configured to sound when the grill is attempted to be ignited with the cover closed, thereby avoiding a potential explosion. A biasing attraction magnet is incorporated in the fluid flow switch to offset either the force of gravity or a return spring in order to extend performance to low pressure and low flow applications.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 11, 2012
    Assignee: Waterstrike Incorporated
    Inventor: David A. Struyk
  • Patent number: 8172276
    Abstract: A fitting connectable to an end portion of a pipe generally includes a housing configured for receiving at least part of the end portion of the pipe into the housing, and an insert member disposed at least partly within the housing. The insert member is configured to be received at least partly within the end portion of the pipe when at least part of the end portion of the pipe is received into the housing. A retention member is movable relative to the housing for selectively connecting the fitting to the end portion of the pipe. The retention member is movable to press at least part of the end portion of the pipe against at least part of the insert member to help secure the fitting to the end portion of the pipe when the end portion of the pipe is received into the housing.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: May 8, 2012
    Assignee: Blazing Products, Inc.
    Inventors: Thomas A. King, Duane K. Smith, Douglas L. Kirk
  • Patent number: 8079781
    Abstract: A structural support device in the form of a push pier capable of use in high load-bearing capacity applications involving significant lateral load conditions, the push pier having a lead section with a ground penetrating friction collar, and one or more extension members that are machine fabricated with an integrally formed hardened alloy steel coupling section that is adapted to mate with the push pier lead section or another similarly constructed extension shaft. The hardened coupling section is formed of heat-treated and hardened alloy steel which is quenched and tempered to a yield and tensile strength substantially exceeding that of the main tubular shaft section to which it is connected, and inertia friction welded thereto.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: December 20, 2011
    Assignee: World Transload & Logistics, LLC.
    Inventor: Thomas M. Ronnkvist
  • Patent number: 7791686
    Abstract: A display apparatus having a pair of polarizers with an optical rotator therebetween, one of the polarizers being a variable polarizer which is independently operated to alternate between substantially orthogonal states of polarization and cause the display to rapidly alternate between a normal positive and inverted negative image, creating a combined neutral image that in indecipherable to the naked eye. Shutter eyewear synchronized with the variable polarizer is used to extract the positive image for viewing by an intended viewer. In another embodiment, both polarizers of the display apparatus are independently variable, which allows for viewing of the desired image using passive polarized eyewear or eyewear incorporating synchronized variable polarizing rotators. Faster independent operation of the variable polarizers provide for flicker-free viewing of the desired image and convenient switching between normal and secure modes of operation, without physical alteration of the display.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: September 7, 2010
    Assignee: WaterStrike Incorporated
    Inventor: David A Struyk
  • Patent number: 7510350
    Abstract: A helical anchor capable of use in high load-bearing capacity applications involving extreme drive torque conditions, the anchor having a main drive shaft machine fabricated with an integrally formed hardened alloy steel coupling section that is adapted to mate with a similarly hardened and integrally formed corresponding coupling section of an extension shaft. The coupling sections are formed of seamless high-carbon heat-treated alloy steel which is quenched and tempered to a yield and tensile strength approximating 135,000 psi, and inertia friction welded to the hot-finished seamless alloy steel tubing utilized in the formation of the remainder of the drive and extension shafts.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: March 31, 2009
    Inventor: Thomas Ronnkvist
  • Patent number: 7434850
    Abstract: A bell and spigot coupling system is provided for joining corrugated plastic pipe which improves the coupling's sealing capability with increasing hydrostatic pressure, and causes a substantial component of the force generated therefrom to be absorbed axially through the coupled sections of adjoining pipe. The spigot end of one pipe which is received within a bell coupler for an adjoining pipe terminates in a small annular bed-forming rib which forms a gasket bed that holds a gasket compressed against a radially extending gasket sealing surface of the bell coupler. Inward protruding latches formed in the bell coupler engage the adjoining section of corrugated pipe to resist axial separation and hold the gasket compressed against the sealing surface of the bell coupler. The sealing surface of the bell coupler contours the spigot end of the adjoining pipe and forms radially constricting pathways at opposite sides of the gasket.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 14, 2008
    Assignee: Prinsco, Inc.
    Inventors: Jeremy N. Duininck, Michael L. Pluimer
  • Patent number: 7319755
    Abstract: An image altering apparatus which provides confidential viewing of a video display by means of time multiplexing the fundamental display image with a color-inverted image thereof on a pixel-by-pixel basis. Electronic circuitry and/or software are utilized to modify the fundamental image signal by time multiplexing its color data components with corresponding inverse color data components to generate a compound image signal which is representative of a substantially featureless image. Different multiplexing sequences of color data components and inverse color data components may be utilized at varying duty cycles to generate a compound image which is highly confidential and secure from unauthorized viewing.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 15, 2008
    Assignee: Waterstrike Incorporated
    Inventor: David A Struyk
  • Patent number: D563611
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: March 4, 2008
    Assignee: Quadion Corporation
    Inventors: Ted Eric Ahrenholtz, Justin Paul Boortz
  • Patent number: D573912
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: July 29, 2008
    Inventor: Merril Buckhorn
  • Patent number: D589762
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: April 7, 2009
    Inventor: Dwight Tangren
  • Patent number: D602672
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: October 20, 2009
    Inventor: Drew Stillwell
  • Patent number: D616631
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: June 1, 2010
    Inventor: Diane Dandron
  • Patent number: D639011
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 31, 2011
    Inventors: Ted E. Ahrenholtz, Justin P. Boortz, Kevin J. Hansen
  • Patent number: D639012
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 31, 2011
    Inventor: Ted E. Ahrenholtz
  • Patent number: D639013
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 31, 2011
    Inventor: Ted E. Ahrenholtz
  • Patent number: D644306
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: August 30, 2011
    Assignee: Prinsco, Inc.
    Inventor: Carl R. Douglass, III
  • Patent number: D650053
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: December 6, 2011
    Assignee: Prinsco, Inc.
    Inventor: Carl R. Douglass, III
  • Patent number: D653834
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 7, 2012
    Assignee: Bluerock Technologies, Inc.
    Inventors: Ted E. Ahrenholtz, Kevin J. Hansen
  • Patent number: D666254
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: August 28, 2012
    Inventor: Andre Madison Pleasant