Patents by Inventor Lien-Ching Lu

Lien-Ching Lu 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: 5781965
    Abstract: An extensible handle device has a pair of outer pipes, a pair of inner pipes disposed in the corresponding outer pipes respectively, a pair of cylinder blocks disposed in the corresponding inner pipes respectively, and a pair of push blocks disposed in the corresponding cylinder blocks respectively. A handle bar has a crossbar and a press bar inserted in the crossbar. The crossbar has two through holes to receive two inner pipes and at least two hollow posts disposed in the crossbar. Each of the push blocks has a slide groove to receive a slide block and a helical spring. Two cushions are inserted in two upper ends of the inner pipes. Each cushion receives a compression spring and a connecting rod. Each post receives a coiled spring and a respective protruded rod. Each outer pipe has a plurality of oblong holes.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: July 21, 1998
    Assignee: Ting Cheng Co., Ltd.
    Inventor: Lien-Ching Lu
  • Patent number: 5730264
    Abstract: A luggage structure to which an additional luggage case can be freely added. The luggage structure includes a luggage pull rod and a pair of adjustable latch boards. The luggage pull rod includes a pair of inner tubes, a handle, an engaging board and a base seat. The adjustable latch boards includes an upper pressing board and a base board. The upper pressing board is a reverse L-shaped board body having a vertical section disposed with two latch clips on two sides. Each latch clip is disposed with a through hole for the outer tube to pass thereinto and for a bolt to tighten the outer tube. A horizontal section of the pressing board is formed with several through holes for riveting pin members therein so as to secure the additional luggage case. The base board is an L-shaped board body having a vertical section disposed with two latch clips on two sides. Each latch clip is disposed with a through hole for the outer tube to pass thereinto and for a bolt to tighten the outer tube.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: March 24, 1998
    Assignee: Ting Cheng Co., Ltd.
    Inventor: Lien-Ching Lu
  • Patent number: 5727898
    Abstract: A locating structure for luggage pull rod including a handle, a transmission assembly, a linking lever, an inner tube, a hollow inner engaging tube secured at the bottom end and an outer tube. A lateral side of the inner engaging tube is formed with a through hole. The upper and lower edges of the through hole are respectively disposed with two restricting blocks. The other lateral side is open and engaged with an engaging cover. A slide seat is fitted in the inner engaging tube and formed with an inner cavity. The slide seat is up and down movably fitted with the restricting blocks. Two inclined channels are formed near the belly of the cavity, so that the guide posts of the locating block are inserted in the inclined channels of the slide seat, The locating block has a locating button at the front end. The locating button is passed and engaged in the through hole of the inner engaging tube.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: March 17, 1998
    Inventor: Lien-Ching Lu
  • Patent number: 5709398
    Abstract: A telescopic pull lever structure for a luggage case, which can be adjusted up and down according to the size of the luggage case so as to snugly receive the luggage case. The pull lever structure includes a pull lever receiving board having a pair of handle pull levers and a pair of telescopic pull levers and a base seat. Any specific luggage case can be snugly received between the upper locking end of the receiving board and the base seat.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: January 20, 1998
    Inventor: Lien-Ching Lu