Patents by Inventor Edward Zheng

Edward Zheng 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: 6802393
    Abstract: A foldable ladder includes a back supporting frame and a front supporting frame, a plurality of foot supporters provided on the front supporting frame in a pivotally foldable manner, a plurality of coupling arrangements for coupling the foot supporters with the front supporting frame, and a foot supporters folding control mechanism for folding or unfolding all the foot supporters in a simultaneous manner. The foot supporters are adapted of folding between a folded position and an unfolded position, wherein in the folded position the first and the second step member are pivotally and upwardly folded toward the first and the second front side legs respectively, and wherein in the unfolded position, the first and the second step member are pivotally and downwardly unfolded from each other to an extent that the step surface of the first step member is well-aligned with the step surface of the second step member, while the step surfaces are kept horizontal.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: October 12, 2004
    Inventor: Edward Zheng
  • Publication number: 20040154867
    Abstract: A ladder includes a standing frame comprising two parallel standing side legs, a plurality of step platforms transversely extended between the standing side legs of the standing frame, and a side support enhancement including two side ground supports each having a ground end and a pivot end pivotally connected to the respective standing side leg, two reinforcing arms pivotally connected to the side ground supports respectively; and two sliding joints for slidably connecting the reinforcing arms with bottom ends of the standing side legs respectively. Therefore, the reinforcing arms are slid inwardly to pivotally pull the side ground supports to align with the standing side legs respectively to form a compact unit and are slid outwardly to pivotally push the side ground supports away from the standing side legs respectively so that the side ground supports are inclindedly and outwardly extended from the standing side legs respectively.
    Type: Application
    Filed: February 11, 2003
    Publication date: August 12, 2004
    Inventor: Edward Zheng
  • Publication number: 20040135405
    Abstract: A collapsible chair (100) with solid armrests (160) has a front leg (110), a rear leg (120), a seat support rod (130), and a back support rod (140) coupled together such that the back support rod reclines independently of the seat support rod, and that the chair collapses in a single movement in which the front legs approximate each other when the front legs pivot towards the rear legs.
    Type: Application
    Filed: February 9, 2004
    Publication date: July 15, 2004
    Inventor: Edward Zheng
  • Publication number: 20040130190
    Abstract: A quad chair (100) with solid armrests (130) collapses in a single movement in which (a) the front legs (110) approximate each other when the front legs and the rear legs (120) pivot towards each other, and (b) the armrest slidingly moves along the front leg, rear leg, or cross brace (150).
    Type: Application
    Filed: February 9, 2004
    Publication date: July 8, 2004
    Inventor: Edward Zheng
  • Patent number: 6755462
    Abstract: The cushioned seat and back support, which is adapted for mounting on a chair frame of a collapsible chair, includes a support layer, a cover layer overlapped with the support layer, and a cushion layer sandwiched between the support layer and the cover layer, wherein the back support portion of the support layer is mounted to back frame legs of the foldable chair frame and the seat support portion of the support layer is supported by two front upper frame joints of the foldable chair frame, so as to substantially mount the cushioned seat and back support on the foldable chair frame.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: June 29, 2004
    Inventor: Edward Zheng
  • Publication number: 20040112263
    Abstract: A foldable panel supporter includes a supporting leg frame and a supporter joint, wherein the supporting leg frame includes a lower supporting frame and an upper connecting frame which includes a pair of L-shaped resilient connecting arms adapted for being inwardly and slightly pressed. The supporter joint has a folding channel provided thereon to receive the two connecting arms of the upper connecting frame, wherein the folding channel has two holding portions at two ends thereof and a retaining portion extending between the two holding portions. The retaining portion has a width narrower than the two holding portions, wherein each of the holding portions is shaped and sized to receive the connecting arms therein, wherein by slightly and inwardly pressing the resilient connecting arms to an extent that a distance between the resilient connecting arms is equal to the width of the retaining portion, the upper supporting frame is capable of sliding form one of the holding portion to another the holding portion.
    Type: Application
    Filed: December 16, 2002
    Publication date: June 17, 2004
    Inventor: Edward Zheng
  • Publication number: 20040094997
    Abstract: A chair with rigid armrest collapses in a single movement in which the front legs of the chair approximate each other as the front legs and the rear legs pivot towards each other, and in which the armrest slidingly moves relative to the front leg.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 20, 2004
    Inventor: Edward Zheng
  • Publication number: 20040094996
    Abstract: A collapsible chair has a front leg, a rear leg, a cross brace, a seat support rod, and a back rest, coupled together such that the chair collapses in a single movement. In especially preferred aspects, a collapsible chair comprises a connector that is slidably coupled to a leg and that further includes a first rotatable coupling to one end of a cross brace and a second rotatable coupling to one end of a seat support rod.
    Type: Application
    Filed: November 20, 2002
    Publication date: May 20, 2004
    Inventor: Edward Zheng
  • Publication number: 20040081510
    Abstract: A folding joint arrangement, which is adapted for incorporating with a foldable furniture constructed by a plurality of first and second frame tubes, includes an angle joint body, a pivot arm integrally extended from the angle joint body to define a first axis, wherein the pivot arm is adapted for pivotally connecting with one of the first frame tube such that the first frame tube is capable of rotating about the first axis of the pivot arm, and a connector arm integrally extended from the angle joint body to define a second axis perpendicularly to the first axis wherein the connector arm is adapted for pivotally connecting with one of the second frame tube such that the second frame tube is capable of rotating about the second axis of the connector arm, so as to pivotally connect the first and second frame tubes in a two-plane directional movement.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventor: Edward Zheng
  • Patent number: 6715824
    Abstract: An apparatus for supporting a furniture application with a framework having a cross frame structure, the cross frame structure including a horizontal support clement that is pivotally attached to one cross support element and is removably latched onto another cross support element.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 6, 2004
    Inventor: Edward Zheng
  • Patent number: 6708630
    Abstract: A foldable furniture incorporates with a foldable side support arrangement which includes a pair of side supporting units pivotally connected to two side frame of a foldable frame of the foldable furniture and a pair of retaining units coupling with the side supporting units respectively to reinforce the side supporting units pivotally extended to retain the first and second side frame legs of the side frame in position when the foldable frame is unfolded to stretch out wherein two side edge portions of a tension fabric are substantially supported by the two side supporting units respectively. Therefore, the foldable side supporting arrangement is capable of substantially increasing the supporting area of tension fabric to more evenly distribute and support the downward force and stress applied on the tension fabric.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 23, 2004
    Inventor: Edward Zheng
  • Patent number: 6702371
    Abstract: A foldable chair includes a foldable chair frame, a seat frame, and a detachable seat arrangement. The seat frame includes a fabric supporting frame and a seat fabric supported thereon. The fabric supporting frame includes a pair of semi-circular seat supporting bars pivotally and foldably connected together to form a complete fabric supporting frame. The detachable seat arrangement includes a pair of fabric frame holders securely mounted on the upper attaching portions of the rear supporting legs respectively, and a pair of securing members provided at the seat portion of the seat fabric for detachably mounting the fabric supporting frame onto the front supporting frame. Moreover, each of the fabric frame holders has an engaging slot formed on an upper portion thereof for engaging with the frame connecting portions of the fabric supporting frame.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 9, 2004
    Inventor: Edward Zheng
  • Patent number: 6682135
    Abstract: A tensional support arrangement includes a pair of guiding holders rotatably connected to back supporting frame legs respectively and a pair of side supporting arms, which are positioned at two outer sides of a chair frame, each has a support portion pivotally connected to the respective front joint at a front end thereof and a guiding portion slidably connected to the respective guiding holder, wherein two side edge portions of a seat fabric are substantially supported by the support portions of the side supporting arms respectively. Therefore, the tensional support arrangement is capable of substantially increasing the supporting area of the fabric seat to more evenly distribute and support the downward pulling force and stress applied by the user's weight.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: January 27, 2004
    Inventor: Edward Zheng
  • Publication number: 20030234140
    Abstract: A foldable ladder includes a back supporting frame and a front supporting frame, a plurality of foot supporters provided on the front supporting frame in a pivotally foldable manner, a plurality of coupling arrangements for coupling the foot supporters with the front supporting frame, and a foot supporters folding control mechanism for folding or unfolding all the foot supporters in a simultaneous manner. The foot supporters are adapted of folding between a folded position and an unfolded position, wherein in the folded position the first and the second step member are pivotally and upwardly folded toward the first and the second front side legs respectively, and wherein in the unfolded position, the first and the second step member are pivotally and downwardly unfolded from each other to an extent that the step surface of the first step member is well-aligned with the step surface of the second step member, while the step surfaces are kept horizontal.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventor: Edward Zheng
  • Publication number: 20030233966
    Abstract: A foldable furniture incorporates with a foldable side support arrangement which includes a pair of side supporting units pivotally connected to two side frame of a foldable frame of the foldable furniture and a pair of retaining units coupling with the side supporting units respectively to reinforce the side supporting units pivotally extended to retain the first and second side frame legs of the side frame in position when the foldable frame is unfolded to stretch out wherein two side edge portions of a tension fabric are substantially supported by the two side supporting units respectively. Therefore, the foldable side supporting arrangement is capable of substantially increasing the supporting area of tension fabric to more evenly distribute and support the downward force and stress applied on the tension fabric.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventor: Edward Zheng
  • Publication number: 20030234561
    Abstract: A foldable chair includes a foldable chair frame, a seat frame, and a detachable seat arrangement. The seat frame includes a fabric supporting frame and a seat fabric supported thereon. The fabric supporting frame includes a pair of semi-circular seat supporting bars pivotally and foldably connected together to form a complete fabric supporting frame. The detachable seat arrangement includes a pair of fabric frame holders securely mounted on the upper attaching portions of the rear supporting legs respectively, and a pair of securing members provided at the seat portion of the seat fabric for detachably mounting the fabric supporting frame onto the front supporting frame. Moreover, each of the fabric frame holders has an engaging slot formed on an upper portion thereof for engaging with the frame connecting portions of the fabric supporting frame.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventor: Edward Zheng
  • Patent number: 6637811
    Abstract: A collapsible chair has a pair of front legs, a pair of rear legs, a pair of back support rods, a seat, and a cross brace that slidably couples one of the back support rods to one end of the cross brace and one of the front legs. The legs, support rods and cross brace are coupled such that the chair collapses in a single movement in which the front legs approximate each other when the seat pivots towards the back support rods.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 28, 2003
    Inventor: Edward Zheng
  • Patent number: 6634609
    Abstract: A universal accessory adapter, which is adapted for attaching to a collapsible outdoor furniture, includes a supporting device for rigidly supporting an accessory item, at least a connector for detachably attaching the supporting device to a frame leg of the collapsible outdoor furniture, and a foldable frame arranged for selectively folding the supporting device from a folded position to an unfolded position. In which, in the folded position, the supporting device is moved to a position close to the frame leg of the collapsible outdoor furniture, and in the unfolded position, the supporting device is moved away from the frame leg of the collapsible outdoor furniture, so as to spacedly mount the supporting device with respect to the frame leg of the collapsible outdoor furniture. Therefore, the universal accessory is substantially supported by the collapsible outdoor furniture, so as to rigidly support the accessory item on the universal accessory adapter.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: October 21, 2003
    Inventor: Edward Zheng
  • Patent number: 6634705
    Abstract: An armrest arrangement, which is incorporated with a chair frame, includes two arm rests pivotally connected to two back supporting arms of a chair frame respectively and two arm supports, which are pivotally connected to two seat side supports of the chair frame respectively, each having an upper end slidably connected to the respective arm rest for supporting the arm rest at an unfolded position of the chair frame. At a folded position, the arm rests are pivotally and upwardly folded towards the back supporting arms respectively so as to fold up the chair frame correspondingly, and at the unfolded position, the arm rests are pivotally folded to transversely extended from the back supporting arms so as to provide two arm resting surfaces respectively for substantially supporting user's arms thereon.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: October 21, 2003
    Inventor: Edward Zheng
  • Patent number: 6607240
    Abstract: A collapsible chair front and rear leg, seat and back support rods, first and second pairs of cross braces, and solid arm rest, all of which are coupled such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods. The seat in preferred chairs is a tensioned seat and continuous with the backrest.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 19, 2003
    Inventor: Edward Zheng