Patents by Inventor Wen-Shan Ko

Wen-Shan Ko 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: 20130069406
    Abstract: A seat guiding apparatus for a chair includes a base, an elastic assembly mounted in the front end of the base and having a torsion spring and a moveable plate abutted against the torsion spring, and a seat assembly provided with a seat and a bracket connected with the seat. The bracket of the seat assembly has a front end connected with the moveable plate and a rear end movably mounted in curved guiding grooves of the base, such that the seat assembly is moveable along the curved guiding grooves relative to the base. As a result, when sitting on the seat, a sitter' back can be guided by the movement of the seat assembly to lean against a backrest of the chair for support.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 21, 2013
    Inventor: Wen-Shan KO
  • Publication number: 20130069414
    Abstract: A support cushion for use as a chair backrest or chair seat of a chair includes an outer frame, an inner strip inserted into an insertion groove of the outer frame and having a plurality of second hook portions engaged with a plurality of first hook portions of the outer frame respectively, and a mesh fabric sewed to the inner strip. By this way, the support cushion can be assembled quickly and have a smooth appearance after assembled.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 21, 2013
    Inventor: Wen-Shan KO
  • Publication number: 20120274112
    Abstract: A chair with a pre-pressing structure includes a chair body and a pre-pressing structure enabling the chair body to be provided with elastic restoring force. The chair is characterized in that the pre-pressing structure includes a pre-pressing member's fixed seat, a pre-pressing member, a pivoting seat, a pre-pressing positioning member and a pre-pressing angle.
    Type: Application
    Filed: July 11, 2012
    Publication date: November 1, 2012
    Inventor: Wen-Shan KO
  • Patent number: 8075061
    Abstract: The present invention provides a bearing mechanism with an integrated flexible bearing surface. The bearing mechanism includes a frame, which is folded to define an inner space; and an integrated flexible bearing surface, which has an elastic restoring force and is prefabricated onto the inner space of the frame. At least two sides of the integrated flexible bearing surface are mated integrally with the frame when the bearing mechanism is fabricated. The present invention enhances the structural strength, reduces greatly the fabrication cost and improves substantially the manufacturing efficiency with better applicability and industrial benefits.
    Type: Grant
    Filed: July 25, 2009
    Date of Patent: December 13, 2011
    Inventor: Wen-Shan Ko
  • Publication number: 20110291452
    Abstract: A chair adjustment structure includes a base member, a top cover pivotally connected to the base member, a spring member connected between the base member and the top cover, and a back bracket pivotally connected to the base member and the top cover. Therefore, when the user sits on the seat pad of the chair, the back bracket is forced to pivot the top cover to provide the user with sitting comfort.
    Type: Application
    Filed: September 7, 2010
    Publication date: December 1, 2011
    Inventor: Wen-Shan KO
  • Publication number: 20110017107
    Abstract: The present invention provides a folding table, including a main body with table panel and foot stand as well as a folding mechanism. The folding mechanism includes a fixed limiting seat, which is provided with assembly portion and first locating portion. A moveable limiting seat is provided with a second locating portion. A moveable control rod is, interconnected with the moveable limiting seat for simultaneous assembly and positioning. The folding mechanism allows the moveable control rod to shift transversely, so that the moveable limiting seat is activated simultaneously, enabling the second locating portion to move transversely for positioning together with the first locating portion, preventing the swinging of the table panel, or removing the limiting state of the second locating portion of the moveable limiting seat in reverse transversing. The table panel can move rotatably.
    Type: Application
    Filed: July 25, 2009
    Publication date: January 27, 2011
    Inventor: Wen-Shan KO
  • Publication number: 20110018322
    Abstract: The present invention provides a chair with a pre-pressing structure. The chair includes a main body and pre-pressing structure. The pre-pressing structure includes a permanent seat, pre-pressing member and pivoted seat. The permanent seat is arranged onto the assembly surface of the backing plate, and the pre-pressing member is assembled therein. The multi-segment directional groove of the pivoted seat is interlocked with the multi-segment directional bulge of the pre-pressing member, so that the circular elastic member of the pre-pressing member can obtain a torsional restoring force, allowing for pre-pressing and locating via the pre-pressing locator. The pivoted seat is fitted with an inserting portion for inserting into the support of the main body.
    Type: Application
    Filed: July 25, 2009
    Publication date: January 27, 2011
    Inventor: Wen-Shan KO
  • Publication number: 20110018328
    Abstract: The present invention provides a bearing mechanism with an integrated flexible bearing surface. The bearing mechanism includes a frame, which is folded to define an inner space; and an integrated flexible bearing surface, which has an elastic restoring force and is prefabricated onto the inner space of the frame. At least two sides of the integrated flexible bearing surface are mated integrally with the frame when the bearing mechanism is fabricated. The present invention enhances the structural strength, reduces greatly the fabrication cost and improves substantially the manufacturing efficiency with better applicability and industrial benefits.
    Type: Application
    Filed: July 25, 2009
    Publication date: January 27, 2011
    Inventor: Wen-Shan KO
  • Publication number: 20100282135
    Abstract: The present invention provides an assembled table carriage, including a vertical support and at least a grounding support. The grounding support is exposed transversely at the periphery of the vertical support, where a mating end and a protruding end are formed. An axial groove and axial rib are mated between the periphery of vertical support and the mating end of the grounding support, thus enabling the grounding support to be slid axially via the mated axial groove and axial rib and also positioned via a spacer. The shelving unit can be embedded into the vertical support for axial sliding, allowing to adjust the height of table with greater convenience and applicability.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Inventor: Wen-Shan KO
  • Patent number: 6726038
    Abstract: A shelf for a rack is adapted to be secured between two vertical supports and is composed of a plate (22) having multiple securing holes (221) and various storage devices detachably mounted on the plate (22). The storage devices have multiple feet to mount in the securing holes (211) and fasten to the plate to compact space between adjacent shelves.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: April 27, 2004
    Inventor: Wen-Shan Ko
  • Publication number: 20040040922
    Abstract: A shelf for a rack is adapted to be secured between two vertical supports and is composed of a plate (22) having multiple securing holes (221) and various storage devices detachably mounted on the plate (22). The storage devices have multiple feet to mount in the securing holes (211) and fasten to the plate by attachment devices to use space between adjacent shelves efficiently, whereby the rack has excellent flexibility for holding objects.
    Type: Application
    Filed: August 30, 2002
    Publication date: March 4, 2004
    Inventor: Wen-Shan Ko
  • Publication number: 20040035335
    Abstract: An adjustable rack is composed of two opposite vertical supports, multiple shelves and multiple securing members. The opposite ends of the shelves respectively are slidably mounted on the vertical supports. The securing members are detachably and selectively fastened in opposite vertical supports to support the corresponding shelves at the desired positions, whereby distances between adjacent shelves are adjustable.
    Type: Application
    Filed: August 26, 2002
    Publication date: February 26, 2004
    Inventor: Wen-Shan Ko
  • Patent number: 6135032
    Abstract: A computer desk comprises two support frames similar in construction to each other, an ascendible and descendible main desk top supported by the support frames, and an ascendible and descendible auxiliary desk top supported by the two support frames. The support frames are formed of a base tube, two support tubes, two movable support rods, a fitting member, a retaining member, an adjustment shaft, and an adjustment shaft, and an adjustment knob. The main desk top and the auxiliary desk top are mounted on the top ends of the movable support rods which can be raised or lowered by turning the adjustment knob clockwise or counterclockwise.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: October 24, 2000
    Inventor: Wen-Shan Ko
  • Patent number: D436268
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: January 16, 2001
    Inventor: Wen-Shan Ko
  • Patent number: D456169
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: April 30, 2002
    Inventor: Wen-Shan Ko
  • Patent number: D461072
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 6, 2002
    Inventor: Wen-Shan Ko
  • Patent number: D465941
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: November 26, 2002
    Inventor: Wen-Shan Ko
  • Patent number: D611265
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 9, 2010
    Inventor: Wen-Shan Ko
  • Patent number: D424827
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: May 16, 2000
    Inventor: Wen-Shan Ko
  • Patent number: D424828
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: May 16, 2000
    Inventor: Wen-Shan Ko