Patents by Inventor Kwong Dong Chil

Kwong Dong Chil 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).

  • Patent number: 7581337
    Abstract: An expandable shoe includes an outer shell and an adjustable inner assembly within the outer shell. The inner assembly includes a first sole portion, a second sole portion, and a screw drive. The screw drive has a screw passing through a screw insert mounted to one of the first and second sole portions and a screw-receiving portion attached to the other of the first and second sole portions, so that turning the screw causes the sole portions to move relative to one another, thereby adjusting a dimension of the shoe. The shoe includes a manually operable control to turn the screw without the need for tools. The control is operable between a first position in which the control resists movement around an axis defined by the screw and a second position in which the control can be used to turn the screw to adjust a dimension of the footwear.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: September 1, 2009
    Assignee: Inchworm, Inc.
    Inventors: Harry Miller, Byong M. Shin, Kwong Dong Chil
  • Patent number: 7287294
    Abstract: A method of making an expandable shoe is disclosed. An intermediate footwear structure is provided having an expandable upper portion. A stabilizing material is provided to the intermediate structure to resist expansion of the upper portion, and a last is inserted into the intermediate structure. A subsequent manufacturing operation is performed to the intermediate structure, and the stabilizing material is acted upon to permit longitudinal movement of the upper portion. The size of the last is selected from among the sizes within the intended range of shoe sizes for the expandable shoe, depending on the characteristics of the upper portion of the shoe, and the desired shoe size range.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: October 30, 2007
    Assignee: Harry Miller Co., Inc.
    Inventors: Harry Miller, Byong M. Shin, Kwong Dong Chil
  • Patent number: 7137212
    Abstract: An improved expandable shoe and inner assembly are disclosed. The expandable shoe includes an outer shell and an adjustable inner assembly is disposed within the outer shell. The inner assembly has a first board portion and a second board portion in overlapping engagement with each other and a control to adjust the position of the first board portion relative to the second board portion. One of the board portions has a longitudinal projection which extends into a corresponding cavity in the sole of the shoe.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: November 21, 2006
    Assignee: Inchworm, Inc.
    Inventors: Harry Miller, Byong M. Shin, Kwong Dong Chil
  • Patent number: 7080468
    Abstract: An improved expandable shoe and inner assembly are disclosed. The expandable shoe includes an outer shell and an adjustable inner assembly is disposed within the outer shell. The inner assembly has a first board portion and a second board portion in overlapping engagement with each other and a control to adjust the position of the first board portion relative to the second board portion. A lighted visualization window provides a visualization window to the inner assembly. The inner assembly may include size markings through the visualization window so that a size of the adjusted shoe may be determined as shoe size is adjusted.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: July 25, 2006
    Assignee: Inchworm, Inc.
    Inventors: Harry Miller, Byong M. Shin, Kwong Dong Chil
  • Publication number: 20050115114
    Abstract: An improved expandable footwear and inner assembly are disclosed. The footwear has a foot dressing, an adjustable inner assembly disposed within the foot dressing and a stiff member. The adjustable inner assembly has two outwardly extending members, and the stiff member has a channel to nestle the two outwardly extending members to resist undesirable rotation of the inner assembly. The inner assembly has a control for controlling the dimension of the footwear which includes a concave-shaped urging member, that when depressed, allows the footwear to expand or contract, and when not depressed, prohibits such movement.
    Type: Application
    Filed: October 25, 2004
    Publication date: June 2, 2005
    Inventors: Harry Miller, Byong Shin, Kwong Dong Chil
  • Publication number: 20050066548
    Abstract: An expandable shoe includes an outer shell and an adjustable inner assembly disposed within the outer shell. The inner assembly has a control to adjust a dimension of the inner assembly and thereby a corresponding dimension of the shoe. The inner assembly includes a first sole portion, a second sole portion, and a manually urgable member. The manually urgable member has at least a portion of the member accessible from the outer shell, and in engageable and releasable communication with an engagement member, fixed to one of the first and second sole portions. When the urgable member is released from the fixed engagement member the first and second sole portions may be moved to adjust the dimension of the shoe and when the urgable member is in engagement with the fixed engagement member the first and second portions resist slidable movement relative to one another.
    Type: Application
    Filed: November 15, 2004
    Publication date: March 31, 2005
    Inventors: Kwong Dong Chil, Harry Miller