Patents by Inventor Luke Liang

Luke Liang 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: 20110138589
    Abstract: A clip assembly may safely secure sliding sashes of a window or door during transportation, and, in one embodiment, be comprised of a strap member and a pawl member. The strap member may be comprised of a bumper portion, and a strap portion extending therefrom, where the strap portion may have a plurality of teeth formed within the thickness of the strap. The pawl member may have a pair of sidewalls supported by a top wall and an intermediate wall. The top wall may have a protrusion which includes a plurality of pawl teeth formed to complement the strap teeth, and be located proximate to the intermediate wall. The strap may be introduced through the gap between the top rail of an upper sash and bottom rail of the second sash, to then be inserted into the pawl, and thereby be retained by the respective teeth to secure the sashes.
    Type: Application
    Filed: January 25, 2010
    Publication date: June 16, 2011
    Inventors: Luke Liang, John St. Clair, Joseph Blackwell, David Chen
  • Patent number: 7941898
    Abstract: A window operator handle securable to a casement window operating drive shaft is described. The handle is movable between an operating position to a folded position The handle has a body housing that has a cavity which includes an operating mechanism. The operating mechanism has an assembly body secured to the housing, a pivotal member positioned in a first section of the assembly body and a sliding member positioned in at least a second portion of the assembly body. The pivotal member is adapted to pivot from a first position to a second position as the handle is moved from a first position to a second position. The pivotal member is held in one position and the other position by the sliding member. The sliding member is retained in contact with the pivotal member by a spring means in said assembly body.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: May 17, 2011
    Inventors: Luke Liang, Tong Liang
  • Publication number: 20110062727
    Abstract: A vent stop is installed into a window/door to limit travel therein of a sash member, and being particularly adapted to permit ease of its installation, especially into a wooden door/window. The stop incorporates multiple retention means to inhibit the stop's removal, once properly installed. The retention means includes a wedge-shaped protrusion located at a distal end of the stop housing, which engages the wood of the window opening when pivotally installed therein, to secure a first end of the stop. The opposite end of the stop may be redundantly secured. A first means of securing the opposite end may comprise one or more arcuate flanges on housing side walls, flanges being adapted to unidirectional movement so as to permit its movement relative to the window opening during installation, but thereafter deterring counter-pivotal motion that would allow removal of the vent stop. A second means comprises a deformable spring clip.
    Type: Application
    Filed: July 30, 2010
    Publication date: March 17, 2011
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7905521
    Abstract: A multi-point door latch adapted to fit in the stile of a door. The multi-point door latch includes a pair of hooks that are allowed to rotably pivot around a pair of eccentric cams. The eccentric cams are allowed to rotate inside of apertures located through the hubs of the hooks. The eccentric cams are geometrically centered inside the hubs of the hooks, and are kept in position via pins that are eccentrically orientated through cams. The multi-point door latch also includes an opening for receiving a turning mechanism. In addition, the turning mechanism is connected to a pair of toothed gear wheels that mesh with a toothed bar. The toothed bar is connected to a synchronizing link which simultaneously rotates the hooks to either an engaged or disengaged position. The multi-point door latch also includes stopping members, which prevent the hooks from rotating passed a certain point when the door latch is not engaged.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: March 15, 2011
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7900400
    Abstract: The present invention corrects sash sag in casement windows by implementing an adjustable hinge. The adjustable hinge includes a sash arm, a support arm, a retaining clip and an adjustment mechanism. The adjustment mechanism serves a twofold purpose. First, it allows one to adjust the hinge for sash sag, and it also secures the support arm to the track of the adjustment hinge. The adjustment mechanism includes a threaded support post and a threaded member. The threaded support post has a circumferential groove which is used to receive the arms of a retaining clip. The sash arm is mounted to the track of the adjustable hinge via a shoe block. The sash arm has a protrusion located on its bottom surface. The protrusion serves as a movement restrictor.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: March 8, 2011
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20100313488
    Abstract: An adjustable stop is adapted to limit travel of a sliding sash window/door, and can be installed upon the window/door master frame during initial manufacturing of the product, or may be an after-market option added at some time after manufacturing was completed. The stop may even be installed upon sash windows/doors currently in service in a building. The stop is intended to limit sash travel between a closed position and a safe position, where the safe position is a position significantly less than a full-open position. The safety stop may be comprised of a housing and a tumbler being pivotally mounted within a cavity in the housing, with a spring to bias the tumbler out of an opening in the housing. Mounting is by a flange extending from the housing, with spacers of varying thickness that are capable of removably attaching thereon to accommodate sash to master frame height differences.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 16, 2010
    Inventors: Luke Liang, David Chen
  • Publication number: 20100300000
    Abstract: A window vent stop for use in a sash window assembly or a door assembly. The vent stop has a housing to be disposed in a recess in the non-movable sash member. This housing includes a cavity with a bottom plate. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between a fully extended position, a halfway extended position. Also within the housing is a spring for biasing the tumbler. The spring maintains the tumbler in a fully retracted position when the sash is in contact with the tumbler, but automatically resets the tumbler to a full extended position when the sash is removed from the tumbler.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 2, 2010
    Inventors: Luke Liang, David Chen
  • Publication number: 20100281780
    Abstract: A window vent stop for use in a sliding sash window assembly or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in the non-movable sash member. This housing includes a cavity with a bottom plate therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of the sliding member and a retracted position, to allow movement of the sliding member. Also within the housing is a spring for biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in a window sash when a portion of the window sash is positioned between the underside of a lip on said housing and the flexible member.
    Type: Application
    Filed: February 9, 2010
    Publication date: November 11, 2010
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20100269292
    Abstract: Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes an improved pulley system that provides smoother, quieter operation. In another embodiment there are stronger channels for protecting the mechanism.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 28, 2010
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7775563
    Abstract: The two-point mortise latch of the present invention includes, a central actuator having teeth that are meshed with the teeth of a gear wheel, wherein the gear wheel and the central actuator are pivotally connected to at least one hook, via the hook arm. Wherein the top and bottom surfaces of the hooks have guide protrusions that are set in a guide their respective guide areas. The hooks are designed to contact the bottom interior surface of the keeper housing when latched. The central actuator and gear are meshed together via teeth. In addition, the central actuator and gear wheel are biased with springs so as to facilitate opening and closing of the door latch. The components of the present invention are retained inside of the housing, which is set inside the lock stile of a door.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: August 17, 2010
    Assignee: Vision Industries Group
    Inventors: Luke Liang, Toni Liang, David Chen
  • Publication number: 20100192643
    Abstract: An improved window sash latch which has a locking mechanism and a keeper is provided with a handle that rotates from a “locked” to an “unlocked” position. An inner cavity of the handle has a spring assembly having a sliding part that can be forced into a detent as the handle slides around a cylindrical extension of an outer surface of the latch. The detents correspond to a “locked” and an “unlocked” position of the latch. The latch also provides two cams where both cams revolve relative to each other; one cam is activated by the handle through the handle's shaft, the other cam engages the keeper, and both cams engage each other.
    Type: Application
    Filed: October 6, 2009
    Publication date: August 5, 2010
    Applicant: Vision Industries Group, Inc.
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7699365
    Abstract: A sash lock for a sash window assembly where the sash window assembly includes an upper sash window and a lower sash window, each of the sash windows being mounted within opposed guide rails on a master frame wherein at least one of the sash windows is slidable within the frame relative to the other sash window. The sash lock has a housing for mounting on a stile of one of the sash windows and a keeper for mounting on a stile of a second sash of the window. The housing has a locking assembly comprising an actuator and a catch. The actuator is adapted to move the catch. The catch is adapted to engage and disengage a keeper as the actuator is moved from a first position to a second position. The movement of the catch from a first position to a second position causes an indicator in the housing to signal whether the locking assembly of the sash lock is in locking position.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: April 20, 2010
    Assignee: Vision Industries Group, Inc.
    Inventors: Luke Liang, Toni Liang, David Chen
  • Publication number: 20100038918
    Abstract: A latch is provided for use on a pivotable sash window of a single-hung or double-hung sash window assembly to releasably secure the window to the master frame. The latch comprises a latch-bolt slidably mounted within, and biased relative to a housing. The housing is adapted to be installed into the top rail of the sash window through an opening in the stile and top rail, which has a periphery contoured to match the housing end profile. The latch bolt, while maintaining an aesthetically appealing external appearance, is configured to incorporate a cantilevered member which only becomes visible when biased to an angled position where it maintains engagement of the latch housing with the edge of the top wall of the rail during window deformation resulting from high wind loading. The cantilevered member ensures integrity of the latch installation under high wind load conditions typically experienced during extreme weather phenomena.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 18, 2010
    Inventors: Luke Liang, Toni Liang, Toug Liang, David Chen
  • Publication number: 20100037524
    Abstract: A latch is provided for use principally on a pivotal sash window of a double-hung sash window assembly. The latch comprises a latch-bolt slidably mounted within and biased relative to a housing, where the housing is mounted to the top rail of the sash window. The latch bolt is connected to a button for manual actuation of the latch bolt. The latch bolt, while maintaining the convenience and utility of a standard short throw latch, is contoured and designed to maintain engagement with the jam after the window has been deformed under high sustained wind loading typically experienced during extreme weather phenomena such as hurricanes and tornados. The engagement is assured in spite of twisting of the latch bolt within the corresponding opening in the jam.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 18, 2010
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20100019513
    Abstract: An improved sash lock and keeper for a sash window assembly is disclosed. The sash window includes an upper sash window and a lower sash window. Each of the sashes is mounted within opposed guide rails which permit at least one of the sashes to travel slidably therein. The sash lock includes an actuator for engaging a keeper. The keeper is mounted on a style of one of the sash windows. The actuator has an actuator arm and a cam. The cam has a cam surface for engaging a keeper surface. When the cam surface engages the keeper surface thereby locking the two sashes, a flag extends from the keeper to signal that the actuator is in locking engagement with the keeper.
    Type: Application
    Filed: November 13, 2007
    Publication date: January 28, 2010
    Inventors: Paul Generowicz, Luke Liang
  • Publication number: 20100011669
    Abstract: A balance assembly for a sliding sash window, where a spring-loaded pulley arrangement is interconnected between the window frame and the window, to counter the weight of the window, and permit ease of opening and closing the window. The spring-loaded pulley arrangement is located within a housing, which also facilitates attachment of the shoe. The shoe of this balance assembly being rotatable between a first and a second position to permit fitting the assembly into the side of the window frame, when the shoe is in the first position, and to permit final installation of the assembly when the shoe in the second position. The shoe is retained in the first and second positions by detents. This rotatable shoe feature permitting installation, of the Balance Assembly of this invention, into a window frame at later stages of the window assembly sequence.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7637544
    Abstract: A night latch, in particular a night latch that includes a housing, tumbler, button, and a resilient members. The housing of the present invention maintains the tumbler, button, and resilient members. The housing also may have at least one protrusion located on its sidewall. The tumbler of the present invention has a pivoting member along with an aperture for housing a resilient member. In addition, the tumbler of the present invention may have a protrusion located on its front face, which interacts with a protrusion located on the rear end of lower portion of the button. The lower portion of the button also has a resilient member located on the front end. This resilient member exerts a force that maintains the tumbler in a retracted position.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: December 29, 2009
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: 7600796
    Abstract: The present invention relates to a night latch in particular a night latch that includes a housing, tumbler, button, and a two resilient members. The housing of the present invention maintains the tumbler, button, and two resilient members. The housing also may have at least one protrusion located on its sidewall. The tumbler of the present invention has a pivoting member along with a means for housing a resilient member. In addition the tumbler of the present invention may have recess located on its front face. The tumbler also has at least one groove that co-acts with the protrusion on the sidewall. A first resilient member is used force the tumbler into an exposed position, and a second resilient member is used to keep the tumbler in a retracted position, via the co-action of the recess in the tumbler and a protrusion on the bottom portion of the button.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: October 13, 2009
    Assignee: Vision Industries Group
    Inventors: Luke Liang, Tong Liang, Chen Chen
  • Patent number: D626815
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: November 9, 2010
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: D634175
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: March 15, 2011
    Inventors: Luke Liang, David Chen, Tong Liang