Patents by Inventor Jin Chen Chuang

Jin Chen Chuang 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: 20040142795
    Abstract: A stepping exerciser includes a base having a frame, a lever having a middle portion pivotally secured to the frame and having two ends, and two foot pedals rotatably attached to the ends of the lever to rotatably support users. The stepping exerciser includes a simplified and compact structure that is excellent for storing and transportation purposes, and includes rotatable foot pedals for comfortably supporting users.
    Type: Application
    Filed: January 17, 2003
    Publication date: July 22, 2004
    Inventor: Jin Chen Chuang
  • Publication number: 20040097337
    Abstract: An exerciser includes a handle and a support rotatably secured to a base, two foot pedals are rotatably secured to the support with spindles for allowing the users' feet to be rotated relative to the support and for preventing the users from being hurt or twisted while rotating relative to said base with the support. The support includes two blocks pivotally secured between two pivotal and parallel beams for supporting the foot pedals. A device may couple the the handle to the support for allowing the handle to be rotatably coupled to the support.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventor: Jin Chen Chuang
  • Publication number: 20040094925
    Abstract: A cambering vehicle includes a front column, left and a right trailing arms each having a front portion pivotally attached to either the front column or a bracket attached thereto by a pivot axle which is preferably inclined relative to the bracket or the front column. A detachable latching device may be used to detachably latch the bracket, if so provided, and thus the trailing arms to the front column at the working position. The bracket and thus the trailing arm may be rotated relative to the front column to the folding position when the detachably latching device releases the bracket relative to the front column. The cambering vehicle may also include a link connect the trailing arms independent of the front column, and a braking mechanism to inhibit forward movement of the cambering vehicle.
    Type: Application
    Filed: August 11, 2003
    Publication date: May 20, 2004
    Applicant: Unique Forces Company Limited
    Inventor: Jin Chen Chuang
  • Publication number: 20040097336
    Abstract: An exerciser includes a handle and a supporting device rotatably secured to a base, two foot pedals are rotatably secured to the support with spindles for allowing the users' feet to be rotated relative to the supporting device and for preventing the users from being hurt or twisted while rotating relative to said base with the supporting device. A device may couple the the handle to the supporting device for allowing the handle to be rotatably coupled to the supporting device. The handle may include a shank rotatably and foldably secured to a lower segment.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventor: Jin Chen Chuang
  • Patent number: 6709366
    Abstract: A stepping exerciser includes a post extended from a base, a pair of foot pedals pivotally secured to the post with a pivot axle and movable up and down relative to the base about the pivot axle, a shaft rotatably secured to the post and having an inner end disposed in the post and an outer end located outside the post, and a lever secured to the outer end of the shaft and having two ends disposed below and engaged with the bottom surfaces of the foot pedals. A counting device may be used for counting the rotational movement of the shaft relative to the post and the base.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: March 23, 2004
    Inventor: Jin Chen Chuang
  • Publication number: 20030216223
    Abstract: A stepping exerciser includes a pair of foot pedals each having a bent segment disposed on one end and bent relative to the foot pedals and pivotally secured to the base with a pivot shaft, for allowing the foot pedals to be moved up and down relative to the base. The foot pedals each includes a longitudinal axis offset from the pivot shaft, or an included angle is formed between the foot pedals and the bent segments, for increasing the lateral movement of the foot pedals when the foot pedals are moved up and down relative to the base.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Inventor: Jin Chen Chuang
  • Publication number: 20030216224
    Abstract: A stepping exerciser includes a post extended from a base, a pair of foot pedals pivotally secured to the post with a pivot axle and movable up and down relative to the base about the pivot axle, a shaft rotatably secured to the post and having an inner end disposed in the post and an outer end located outside the post, and a lever secured to the outer end of the shaft and having two ends disposed below and engaged with the bottom surfaces of the foot pedals. A counting device may be used for counting the rotational movement of the shaft relative to the post and the base.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Inventor: Jin Chen Chuang
  • Patent number: 6602171
    Abstract: An abdominal exerciser, comprising: a base frame; a seat having a seat pad which is secured on the base frame; an upper arm having a first end and a second end; a lower arm having a first end and a second end, the first end of the lower arm connecting on and laterally extending from the base frame, the second end of the lower arm pivotally connecting to the first end of the upper arm; a vertical bar being located behind the seat pad and connecting with the second end of the upper arm, the vertical bar having a first end and a second end; a handle pivotally connecting to the first end of the vertical bar; and a resilient mechanism interconnecting the base frame and the second end of the vertical bar.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: August 5, 2003
    Inventors: Samson Tsen, Jin-Chen Chuang
  • Publication number: 20030144118
    Abstract: An abdominal exerciser, comprising: a base frame; a seat having a seat pad which is secured on the base frame; an upper arm having a first end and a second end; a lower arm having a first end and a second end, the first end of the lower arm connecting on and laterally extending from the base frame, the second end of the lower arm pivotally connecting to the first end of the upper arm; a vertical bar being located behind the seat pad and connecting with the second end of the upper arm, the vertical bar having a first end and a second end; a handle pivotally connecting to the first end of the vertical bar; and a resilient mechanism interconnecting the base frame and the second end of the vertical bar.
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Inventors: Samson Tsen, Jin-Chen Chuang
  • Publication number: 20010017450
    Abstract: A scooter includes a handlebar having a lower portion slidably and pivotally secured to a board with a shaft. A rod is secured to the handlebar and biased to engage with either of two depressions of the board for securing the handlebar to the board at either an upright working position or a downward folding position. A lock device may selectively engage with the board and the handlebar to for lock the handlebar to the board at either the upright working position or the downward folding position, for preventing the handlebar from being folded relative to the board inadvertently.
    Type: Application
    Filed: December 29, 2000
    Publication date: August 30, 2001
    Inventor: Jin Chen Chuang
  • Patent number: 6196955
    Abstract: An exerciser has a rod engaged through a frame, and a wheel rotatably engaged on the rod and having one or more holes for threading a resilient belt which is received in the rod and which has two ends retained to the ends of the rod. The middle portion of the belt is engaged through either of the holes of the wheel and may be wound around the rod when the wheel is rotated relative to the rod. The frame has one or more wheels for facilitating moving of the frame and has one or more pulleys for winding the belt. Two pulleys are rotatably engaged on the rod for winding the belt.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: March 6, 2001
    Inventor: Jin Chen Chuang
  • Patent number: 5833583
    Abstract: An exerciser includes a base, two gears secured on the base, and two plates rotatably secured to the base at an axle. Two pinions are rotatably secured to the plates and engaged with the gears. Two foot supports are slidably secured to and movable radially relative to the plates and each has a foot pedal and each has one end secured to the pinions at an eccentric shaft, for allowing the foot pedals to be moved toward and away from the axle and for allowing the foot pedals to be moved along an elliptic moving path when the foot supports are moved radially relative to the plates.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: November 10, 1998
    Inventor: Jin Chen Chuang