Patents by Inventor Shi Pei Liu

Shi Pei Liu 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: 20040160023
    Abstract: An in-line skate having a pliable boot and a base frame capable of dispersing the stress thereof to further prevent breakage of members thereof such that the lifespan of the in-line skate is prolonged, includes a lower seat provided with two flanges below a shoe body thereof, a base frame for fitting the lower seat and provided with corresponding through holes for inserting the flanges below the lower seat, lugs formed by downwardly extending the front through holes at the base frame for fitting the flanges into a tracking system, the flanges fitted through rear through holes fitted into the two sides of the tracking system, and a lower protection seat. The shoe body, base frame and tracking system are combined into one flexible body using rivets or screws, thereby obtaining a practical product having enhanced effects.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Inventor: Shi-Pei Liu
  • Publication number: 20040160024
    Abstract: A wheel body and a bearing of in-line skate capable of positioning rollers of a bearing so that stress thereof is dispersed evenly for preventing the loss of grease, intrusions of alien objects, and deformation and locking between the two bearing, thereby increasing the lifespan thereof, includes a spacing next an axletree having a sealed end and an open end further provided with a cover for sealing the axletree, and a bearing provided at recesses at the two sides thereof and consisted of an outer shell having a lengthened central axis, a containment ring having concaves and an outer cover for holding the rollers, thereby achieving a mechanism with enhanced practical values.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Inventor: Shi-Pei Liu
  • Publication number: 20040160025
    Abstract: A semi-soft shoe mainly has a cuffing piece protruding from a bottom rim on the rear lateral side of a fixed frame of the shoe; an elastic piece connects with the cuffing piece and an insert opening at the upper aspect; wherein, the elastic piece is of a long shape with a center expanding circularly such that the upper and lower ends of the fixed piece are riveted firmly at the insert opening and the cuffing piece so as to reinforce the entire structural supporting strength and protect the ankle from damage; a removable cushion liner is disposed inside the shoe for easy cleansing and replacement thereby eliminating odor situation so as to achieve the objectives of cleansing, sanitation and replacing the damaged cushion liner.
    Type: Application
    Filed: February 14, 2003
    Publication date: August 19, 2004
    Inventor: Shi-Pei Liu
  • Publication number: 20030102641
    Abstract: An improved cuff hinging structure of an in-line roller skate includes a plurality of wheels set straight under a chassis, a base portion mounted on the chassis, and a cuff connected to the boot of the base portion through pivots on an ankle support cuff, providing excellent resilience for the cuff and thus enhancing the durability of the skate.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 5, 2003
    Inventor: Shi-Pei Liu
  • Patent number: 6450510
    Abstract: A roller skate includes a frame having a slot and a lateral orifice formed in a front portion and communicating with each other, and a number of cavities formed around the orifice of the frame. A heel portion is secured on the frame. A toe portion includes a rack slidably received in the frame, and two fasteners for limiting the sliding movement between the toe portion and the heel portion. A gear is rotatably disposed in the frame and engaged with the rack of the toe portion. A knob is keyed to the gear for rotating the gear to adjust the toe portion relative to the heel portion.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: September 17, 2002
    Assignee: European Sports Enterprise Co., Ltd.
    Inventor: Shi Pei Liu