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: 20090206616
    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: March 6, 2009
    Publication date: August 20, 2009
    Inventors: Luke Liang, David Chen, Tong Liang
  • Publication number: 20090158677
    Abstract: An improved muntin bar clip for ease of installing bars to the air space of a double-paned window in order to achieve the colonial style window appearance. The clip is configured for one end to be inserted into the frame which provides separation between the lights. The opposite end of the clip points toward the center of the window and provides a quick and easy means of mounting the bars.
    Type: Application
    Filed: December 24, 2007
    Publication date: June 25, 2009
    Inventors: Luke Liang, Toni Liang, David Chen
  • Patent number: 7530611
    Abstract: The present invention relates to a night stop that includes a housing, tumbler, spring, and a right arcuate nest, located on the inside bottom surface of the housing, used for maintaining the bottom rounded portion of the spring. The tumbler of the present invention has a top rear surface that is used as a button for activating the tumbler. In addition, the tumbler of the present invention has a concave rear bottom portion that contacts a stopping member when the tumbler is in an activated position. The spring of the present invention is partially housed inside of a bored cavity located on the tumbler. The bottom rounded portion of the spring is maintained in an arcuate nesting area when the tumbler is deactivated. When the tumbler is activated the bottom rounded spring portion traverses over and across a divide point into a right recession area.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 12, 2009
    Assignee: Vision Industry Group
    Inventors: Luke Liang, Toni Liang, David Chen
  • Publication number: 20090077897
    Abstract: A hinge for casement windows is disclosed. The said hinge includes a track and a shoe that is adapted to travel along the track. There is a sash arm that is pivotally connected and extending from the shoe and a support arm. The support arm has a first end and a second end. The first end is pivotally connected to the sash arm and said second end of the support arm is pivotally connected to the track. The support arm has an orifice for receiving a pin extending from the track. The support arm has a clip for securing the support arm to the track. The clip has a grip extending therefrom to assist in moving the clip from a first position to a second position.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20090044377
    Abstract: An improved shoe for a casement window hinge is disclosed. The hinge has a base with a front end and a rear end and two sides. The base has a ridge on the rear end for securing the base to a track and a tongue extending from one of the sides. The tongue has a plurality of teeth extending from a side of the tongue. A gear wheel is adapted to be rotatably secured to a track. The gear wheel has a plurality of teeth about its circumference which mesh with the teeth on the gear wheel. The rotation of the gear wheel causes the base of the hinge to move longitudinally in relation to the track.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 19, 2009
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20090014905
    Abstract: A sash lock having an extruded housing is disclosed. The housing has two open sidewalls. The housing receives a frame, the frame is securable to the underside of the housing. The frame has a sidewall member that forms the sidewall of the housing.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20080127568
    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: October 24, 2007
    Publication date: June 5, 2008
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20080115321
    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: Application
    Filed: November 17, 2006
    Publication date: May 22, 2008
    Inventors: David Chen, Tong Liang, Luke Liang
  • Publication number: 20080110097
    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: Application
    Filed: July 27, 2007
    Publication date: May 15, 2008
    Inventors: Luke Liang, Tong Liang
  • Publication number: 20080079268
    Abstract: The present invention relates to 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 a means for housing a resilient member. In addition, the tumbler of the present invention may have a tooth-like member 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: Application
    Filed: August 17, 2006
    Publication date: April 3, 2008
    Inventors: Luke Liang, Tong Liang, David Chen
  • Publication number: 20080012358
    Abstract: There is a sweep lock having a housing with a sweep connected to the bottom surface of the housing. The sweep has a handle portion and a tongue portion, and is adapted to move from a first position to a second position, whereby said tongue is in an extended position in one of said first and second positions. The housing has a spring means having first and second ends. The first end is secured to the housing, and the second end is secured to the sweep.
    Type: Application
    Filed: June 4, 2007
    Publication date: January 17, 2008
    Inventors: Luke Liang, David Cheng, Toni Liang
  • Publication number: 20080012357
    Abstract: An automatic sash lock is disclosed having a housing with a top surface and a bottom surface and one or more side surfaces extending from said top surface. The housing has a front face at least a portion of which is open to the interior of the housing. The housing has a tongue movably secured thereto. The tongue has a retracted position and an extended position wherein the tongue extends from the open area of the front face of the housing. The tongue moves from a retracted position to an extended position when a portion of said housing contacts a keeper.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 17, 2008
    Inventors: Luke Liang, David Chen, Tong Liang
  • Publication number: 20070290511
    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: Application
    Filed: June 6, 2006
    Publication date: December 20, 2007
    Inventors: Luke Liang, Toni Liang, David Chen
  • Patent number: 7296831
    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: Grant
    Filed: September 2, 2004
    Date of Patent: November 20, 2007
    Inventors: Paul Generowicz, Luke Liang
  • Publication number: 20070246953
    Abstract: The present invention relates to a night stop that includes a housing, tumbler, spring, and a right arcuate nest, located on the inside bottom surface of the housing, used for maintaining the bottom rounded portion of the spring. The tumbler of the present invention has a top rear surface that is used as a button for activating the tumbler. In addition, the tumbler of the present invention has a concave rear bottom portion that contacts a stopping member when the tumbler is in an activated position. The spring of the present invention is partially housed inside of a bored cavity located on the tumbler. The bottom rounded portion of the spring is maintained in an arcuate nesting area when the tumbler is deactivated. When the tumbler is activated the bottom rounded spring portion traverses over and across a divide point into a right recession area.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 25, 2007
    Inventors: Luke Liang, Toni Liang, David Chen
  • Patent number: D562109
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 19, 2008
    Inventor: Luke Liang
  • Patent number: D567067
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: April 22, 2008
    Inventor: Luke Liang
  • Patent number: D569225
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: May 20, 2008
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: D571635
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: June 24, 2008
    Inventors: Luke Liang, Tong Liang, David Chen
  • Patent number: D593841
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 9, 2009
    Inventors: Luke Liang, Toni Liang, David Chen