Patents Assigned to G. W. Lisk Company, Inc.
  • Patent number: 10060402
    Abstract: In some embodiments, the injector valves have additional flow holes in the seat face to reduce flow variation, decrease package size and allow for a fast response. In another embodiment, the injector valve has a seat with multiple flow channels leading to a venturi, allowing for a fast response and decreased package size.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 28, 2018
    Assignee: G.W. LISK COMPANY, INC.
    Inventor: Jeff Tyler
  • Patent number: 9951726
    Abstract: A valve assembly includes a butterfly valve rotatably moveable between a closed position and an open position, and a shaft extending from the butterfly valve and rotatable about a longitudinal axis to move the butterfly valve between the open position and the closed position. The valve assembly further includes an actuator having a body operable to maintain an end portion of the shaft, the actuator operable to cause the shaft to rotate about the longitudinal axis, a housing sized to retain a portion of the shaft, the housing operable to be in removeable contact with the body, a seal intermediate the body and the shaft, the seal having an outer sealing surface contacting the body and an inner sealing surface contacting the shaft, and an anti-rotation interface between the seal and the housing.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: April 24, 2018
    Assignee: G.W. Lisk Company, Inc.
    Inventors: Shawn Clapham, Jeffery Tyler
  • Patent number: 9206908
    Abstract: A pin release mechanism which includes a release pin, a bias spring, a spring guide, a moveable ball retainer and a solenoid assembly. The release pin is axially movable from a first to a second position. The bias spring is connected to the release pin and exerts a force biasing the release pin towards the second position. The spring guide receives the bias spring interacts with ball bearings. The moveable ball retainer is connected to the bias spring and has a locked position in which ball bearings radially interfere with the movement of the release pin and prevents movement of the release pin from the first to the second position by engaging the release pin, and an unlocked position in which the ball bearings may move radially, disengaging the release pin, and engaging the ball retainer, to allow the release pin to move from the first towards the second position.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 8, 2015
    Assignee: G.W. Lisk Company, Inc.
    Inventors: George F. Howard, Michael T. Levis
  • Patent number: 9146562
    Abstract: A doser valve with a seat comprising at least one axially located slot from an outer surface of the seat and at least one radial/tangential extending passage in fluid communication with the at least one axially located slot and an exit passage out of the seat.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 29, 2015
    Assignee: G.W. Lisk Company, Inc.
    Inventors: Gary Garcia, Jeff Tyler, Bill Crane, Rob Gardner
  • Patent number: 9038742
    Abstract: An exemplary suppressant actuator assembly includes a release member movable from a first position that restricts flow of a suppressant to a second position that permits flow of a suppressant. A biasing member moves from a more-biased position to a less-biased position to move the release member from the first position to the second position. A solenoid is activated to permit movement of the biasing member.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: May 26, 2015
    Assignees: KIDDE TECHNOLOGIES, INC., G.W. LISK COMPANY, INC.
    Inventors: John Wright Porterfield, Jr., Andrew W. Phillips, David Frasure, George F. Howard, Jr.
  • Publication number: 20140270928
    Abstract: A pin release mechanism which includes a release pin, a bias spring, a spring guide, a moveable ball retainer and a solenoid assembly. The release pin is axially movable from a first to a second position. The bias spring is connected to the release pin and exerts a force biasing the release pin towards the second position. The spring guide receives the bias spring interacts with ball bearings. The moveable ball retainer is connected to the bias spring and has a locked position in which ball bearings radially interfere with the movement of the release pin and prevents movement of the release pin from the first to the second position by engaging the release pin, and an unlocked position in which the ball bearings may move radially, disengaging the release pin, and engaging the ball retainer, to allow the release pin to move from the first towards the second position.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: G.W. Lisk Company, Inc.
    Inventors: George F. Howard, Michael T. Levis
  • Publication number: 20140166913
    Abstract: Pin release mechanism comprising: a release pin axially movable from a first position to a second position; a bias spring biasing the release pin towards the second position; a pull rod interacting with ball bearings, the pull rod having a locked position in which ball bearings radially interfere with movement of the release pin and prevent movement of the release pin from the first position to a second position, and an unlocked position in which the ball bearings may move radially relative to the pull rod to allow the release pin to move from the first position towards the second position; a solenoid, which when actuated moves the pull rod toward the unlocked position; and a bias pin coupled to the pull rod, biased by a spring pushing between the release pin and the bias pin, to bias the bias pin and the pull rod toward the second, unlocked direction.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 19, 2014
    Applicant: G.W. LISK COMPANY, INC.
    Inventors: Andrew Phillips, George F. Howard
  • Patent number: 8707996
    Abstract: A selector valve for independently controlling fluid between a first passage, a second passage, and a common passage, comprising: a valve housing comprising an inner chamber in communication with the outlet, having a first valve seat in communication with the first inlet and a second valve seat in communication with the second inlet, a shaft slidably extending through the housing between the first and second valve seats; first and second valve poppets slidably mounted upon the shaft within the inner chamber, each having valve faces for seating against the first and second valve seats; and a spring coaxially located around the shaft between the first and second valve poppets, pushing against the inner surfaces of the first and second valve poppets, biasing the first valve poppet and the second valve poppet away from each other and toward the first valve seat and the second valve seat.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: April 29, 2014
    Assignee: G. W. Lisk Company, Inc.
    Inventor: Jeff Tyler
  • Patent number: 8672291
    Abstract: An actuator control system including a servo-actuator comprising: at least one coil; a solenoid core within the at least one coil; a rod within the solenoid core having a first end, a second end, and a length extending between the first end and the second end, the first end coupled to a sensing core pin having a profile; a moveable member coupled to the second end of the rod; a moveable armature within the solenoid core surrounding a portion of the length of the rod and biased by a spring; and a noncontact sensor integral with servo-actuator and aligned with the first end of the rod coupled to the sensing core pin. A selected position of the servo-valve actuator may be set by the ECU by sensing the position of the sensing core pin using the non-contact sensor.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: March 18, 2014
    Assignee: G.W. Lisk Company, Inc.
    Inventor: Jeff Tyler
  • Patent number: 8671664
    Abstract: A system for purging a device for injecting fuel into an exhaust system of an engine comprising a device having an input and an output coupled to an exhaust system, at least one air valve and at least one fuel valve. The air valve has an input an input coupled to an air supply and an output coupled to the device through a check valve. The fuel valve has an input coupled to a fuel supply and an output coupled to the device through a check valve. When the air valve is open and the fuel valve is closed, air flows from the air supply to the device and is injected into the exhaust system of the engine. When the air valve is closed and the fuel valve is open, fuel flows from the fuel supply to the device and is injected into the exhaust system of the engine.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: March 18, 2014
    Assignee: G.W. Lisk Company, Inc.
    Inventors: Gary Garcia, Rob Gardner, Bill Crane, Jeff Tyler
  • Publication number: 20130312836
    Abstract: A doser valve with a seat comprising at least one axially located slot from an outer surface of the seat and at least one radial/tangential extending passage in fluid communication with the at least one axially located slot and an exit passage out of the seat.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 28, 2013
    Applicant: G.W. Lisk Company, Inc.
    Inventors: Gary Garcia, Jeff Tyler, Bill Crane, Rob Gardner
  • Publication number: 20120312402
    Abstract: A selector valve for independently controlling fluid between a first passage, a second passage, and a common passage, comprising: a valve housing comprising an inner chamber in communication with the outlet, having a first valve seat in communication with the first inlet and a second valve seat in communication with the second inlet, a shaft slidably extending through the housing between the first and second valve seats; first and second valve poppets slidably mounted upon the shaft within the inner chamber, each having valve faces for seating against the first and second valve seats; and a spring coaxially located around the shaft between the first and second valve poppets, pushing against the inner surfaces of the first and second valve poppets, biasing the first valve poppet and the second valve poppet away from each other and toward the first valve seat and the second valve seat.
    Type: Application
    Filed: January 12, 2011
    Publication date: December 13, 2012
    Applicant: G.W. LISK COMPANY, INC.
    Inventor: Jeff Tyler
  • Patent number: 8313082
    Abstract: A system for positioning a device such as a valve with a mechanical input using a fluid operated actuator, a mechanical position feedback member coupled to a feedback element of the fluid operated actuator and an activation fluid valve. The fluid operated actuator has an output coupled to the mechanical input of the valve, a feedback element for mechanically indicating a position of the valve, and inputs for actuating fluid, such that fluid at the inputs causes the fluid operated actuator to move in opposing directions. The activation fluid valve has outputs coupled to the inputs of the fluid operated actuator, a first opposing force input coupled to the mechanical position feedback member and a second opposing force input coupled to a control input force. The position of the activation fluid valve is controlled by a balance between the force from the mechanical feedback member and the control input force.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 20, 2012
    Assignee: G. W. Lisk Company, Inc.
    Inventors: Gary Garcia, Jeff Tyler
  • Publication number: 20110168271
    Abstract: A doser valve with a seat comprising at least one axially located slot from an outer surface of the seat and at least one radial/tangential extending passage in fluid communication with the at least one axially located slot and an exit passage out of the seat.
    Type: Application
    Filed: October 28, 2009
    Publication date: July 14, 2011
    Applicant: G.W. LISK COMPANY, INC.
    Inventors: Gary Garcia, Jeff Tyler, Bill Crane, Rob Gardner
  • Publication number: 20110043308
    Abstract: An actuator control system including a servo-actuator comprising: at least one coil; a solenoid core within the at least one coil; a rod within the solenoid core having a first end, a second end, and a length extending between the first end and the second end, the first end coupled to a sensing core pin having a profile; a moveable member coupled to the second end of the rod; a moveable armature within the solenoid core surrounding a portion of the length of the rod and biased by a spring; and a noncontact sensor integral with servo-actuator and aligned with the first end of the rod coupled to the sensing core pin. A selected position of the servo-valve actuator may be set by the ECU by sensing the position of the sensing core pin using the non-contact sensor.
    Type: Application
    Filed: May 13, 2009
    Publication date: February 24, 2011
    Applicant: G. W. LISK COMPANY, INC.
    Inventor: Jeff Tyler
  • Publication number: 20110030334
    Abstract: A system for purging a device for injecting fuel into an exhaust system of an engine comprising a device having an input and an output coupled to an exhaust system, at least one air valve and at least one fuel valve. The air valve has an input an input coupled to an air supply and an output coupled to the device through a check valve. The fuel valve has an input coupled to a fuel supply and an output coupled to the device through a check valve. When the air valve is open and the fuel valve is closed, air flows from the air supply to the device and is injected into the exhaust system of the engine. When the air valve is closed and the fuel valve is open, fuel flows from the fuel supply to the device and is injected into the exhaust system of the engine.
    Type: Application
    Filed: February 25, 2009
    Publication date: February 10, 2011
    Applicant: G. W. LISK COMPANY, INC.
    Inventors: Gary Garcia, Rob Gardner, Bill Crane, Jeff Tyler
  • Publication number: 20110031426
    Abstract: A system for operating a valve comprising a motor shaft driven by a motor; a first cam with a profile mounted to the motor shaft, a second cam with a profile mounted to the motor shaft; a non-contact sensor proximate to the first cam; and a valve actuator. The valve actuator follows the profile of the second cam. A selected position of the valve actuator may be set by activating the motor to a position determined by sensing the first cam profile by the non-contact sensor.
    Type: Application
    Filed: April 7, 2009
    Publication date: February 10, 2011
    Applicant: G. W. LISK COMPANY, INC.
    Inventor: Jeff Tyler
  • Publication number: 20110031425
    Abstract: A system for operating a valve including a motor shaft driven by a motor, a cam, a non-contact sensor, and a butterfly valve plate mounted on a butterfly valve shaft. The cam has an exterior profile and is mounted to the motor shaft. The non-contact sensor is proximate to the cam's exterior profile. The butterfly shaft is coupled to the motor shaft. A selected position of the butterfly valve plate may be set by activating the motor to a position determined by sensing the cam profile by the non-contact sensor.
    Type: Application
    Filed: April 7, 2009
    Publication date: February 10, 2011
    Applicant: G. W. LISK COMPANY, INC.
    Inventor: Jeff Tyler
  • Publication number: 20100313981
    Abstract: A system for positioning a device such as a valve with a mechanical input using a fluid operated actuator, a mechanical position feedback member coupled to a feedback element of the fluid operated actuator and an activation fluid valve. The fluid operated actuator has an output coupled to the mechanical input of the valve, a feedback element for mechanically indicating a position of the valve, and inputs for actuating fluid, such that fluid at the inputs causes the fluid operated actuator to move in opposing directions. The activation fluid valve has outputs coupled to the inputs of the fluid operated actuator, a first opposing force input coupled to the mechanical position feedback member and a second opposing force input coupled to a control input force. The position of the activation fluid valve is controlled by a balance between the force from the mechanical feedback member and the control input force.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 16, 2010
    Applicant: G. W. LISK COMPANY, INC.
    Inventors: Gary Garcia, Jeff Tyler
  • Patent number: 7581302
    Abstract: A magnetic gap in a solenoid core is formed by a non-magnetic brazing material bonded into a groove encircling the core in the region of the magnetic gap. A bore through a single piece core and valve cartridge is dimensioned to intersect the brazing material and remove magnetic material bridging the gap without severing the core into separate pieces. This allows the solenoid core and the valve cartridge to be machined in a single piece with a uniform diameter bore receiving a single piece solenoid plunger and valve spool. This ensures accurate concentricity of the plunger and spool within the bore, which improves magnetic performance while reducing manufacturing costs.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: September 1, 2009
    Assignee: G. W. Lisk Company, Inc.
    Inventor: Jeffery A. Tyler