Patents by Inventor Chuen-Jong Tseng

Chuen-Jong Tseng 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: 6112757
    Abstract: A leg assembly for a canopy includes upright leg members, tubular sleeves sleeved slidably and respectively on the leg members, and connecting units extending between the leg members. Each of the connecting units includes at least two linking units and a pivot unit. Each of the linking units includes a first linking rod and a second linking rod. The first linking rod includes a lower segment, an upper segment and an intermediate segment that is formed with a slot. The slot and the upper and lower segments of the first linking rod are disposed on a common vertical plane. The lower segment has a lower end mounted pivotally on an adjacent tubular sleeve. The second linking rod has an upper end mounted pivotally on the upper end of an adjacent leg member, a lower end, and an intermediate portion extending through the slot of the first linking rod, and is pivoted to the intermediate segment about a horizontal pivot axis.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: September 5, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 6112756
    Abstract: A covering frame for supporting a canopy above a ground surface includes a plurality of legs adapted to extend uprightly from the ground surface, and a canopy support frame mounted on top of the legs. The canopy support frame includes at least one pair of parallel support rods having lower ends mounted on the legs and upper ends, an upper horizontal bar interconnecting the upper ends of the support rods, a lower horizontal bar parallel to the upper horizontal bar and interconnecting the lower ends of the support rods, and a supplementary canopy support member extending transversely between the support rods. The supplementary canopy support member includes a seat having two opposite mounting ends, and a pair of connecting wires having outer ends connected respectively to the support rods and inner ends mounted adjustably and respectively on the mounting ends of the seat.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: September 5, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 6056354
    Abstract: A foldable chair frame includes a seat frame formed with an elongated groove which extends from a front end portion to a rear end portion of the seat frame, a first leg frame pivoted to the seat frame, and a second leg frame pivoted to the first leg frame and formed with a slide member that extends slidably into the elongated groove. When in an unfolded state, the slide member extends along the elongated groove to the front end portion of the seat frame. When in a folded state, the slide member extends along the elongated groove to the rear end portion of the seat frame. A locking unit includes a stop member disposed below the seat frame and mounted pivotally to the front end portion of the seat frame about a horizontal pivot axis. The stop member is formed with an upwardly extending stop protrusion.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: May 2, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 6036605
    Abstract: A swing assembly includes a support frame, a pair of linking units, a seat unit, and a pair of pivot connecting units. The support frame has upright left and right frame portions adapted to be supported on a ground surface, and a horizontal bar interconnecting the left and right frame portions. The linking units are disposed between the left and right frame portions. Each of the linking units has an upper end connected pivotally to the horizontal bar, and a lower end. The seat unit is disposed between the linking units, and has two lateral arms proximate to the linking units. The pivot connecting units connect the lateral arms of the seat unit to the linking units, respectively.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: March 14, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 6033026
    Abstract: A chair frame assembly includes first and second lateral frames formed with aligned first and second mounting holes, and linking units extending between the lateral frames. Each of the linking units includes a tubular positioning sleeve, a connecting rod, a linking rod, and first and second screw bolts. The positioning sleeve is mounted securely on the first lateral frame, and has an axis aligned with a respective one of the first mounting holes. The connecting rod is mounted non-rotatably on the positioning sleeve, and has a first section formed with an internally threaded fastening hole, and an externally threaded second section. The first screw bolt extends through the respective one of the first mounting holes, and engages threadedly the fastening hole. The linking rod has a first end which is formed with an internally threaded first engaging hole that engages threadedly the second section of the connecting rod, and a second end formed with an internally threaded second engaging hole.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: March 7, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: 6030032
    Abstract: An armrest for a chair includes an armrest frame formed with an elongated channel with a bottom opening, a hollow mounting seat disposed in the channel, and a shaft extending slidably through the mounting seat along an axis parallel to the armrest frame and having opposite ends secured to the armrest frame. The mounting seat has inner surfaces formed with retaining grooves that are registered with one another. Each of the retaining grooves is defined by a front vertical shoulder and a rear inclined shoulder. The inclined shoulder inclines downwardly and forwardly relative to the vertical shoulder. A locking plate is disposed in the mounting seat, and extends into the retaining grooves. The locking plate is formed with a locking hole between upper and lower sections thereof. The locking hole is slightly larger than cross-section of the shaft to permit extension of the shaft therethrough.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: February 29, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D419792
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: February 1, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D420830
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: February 22, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D422425
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: April 11, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D423802
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 2, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D423806
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: May 2, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D423827
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 2, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D425717
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 30, 2000
    Assignee: Shin Eyn Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D426081
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: June 6, 2000
    Assignee: Shin Yen Enterprise Co. Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D426394
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: June 13, 2000
    Assignee: Shin Yen Enterprise Co. Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D426730
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: June 20, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D426971
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: June 27, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D427446
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: July 4, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D431399
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: October 3, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng
  • Patent number: D431918
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: October 17, 2000
    Assignee: Shin Yen Enterprise Co., Ltd.
    Inventor: Chuen-Jong Tseng