Chung K Lee

US Patent:

49460188, Aug 7, 1990

Filed:

Oct 30, 1989

Appl. No.:

7/429076

Inventors:

Willard Binzen - Mars PA
Chung C. Lee - Coraopolis PA
David A. Gadsby - Coraopolis PA

Assignee:

Dravo Wellman, Inc. - Pittsburgh PA

International Classification:

B65G 1114

US Classification:

193 25C

Abstract:

The present invention is directed to a loading chute which includes a hoist frame adapted to be mounted on a conventional loader conveyor above a bulk material hold of a cargo vessel, for example. A plurality of chute segments are provided and are hingeably attached end-to-end in zigzag fashion such that a lower discharge end of a chute segment is attached to an upper receiving end of a subjacent chute segment. Each hinge attachment includes an outwardly extending pivot pin which is attached to a link plate. The link plates between adjacent spaced chutes are joined together by vertically extending semi-rigid support strands which bear the weight of the array of chutes. Hoisting ropes are attached to the lowermost chute segment and are reeled in and out by motor driven hoist reels or drums. Elastic ropes extend laterally from the link plate members at each chute segment hinge to an adjacent support strand. The elastic ropes apply a biasing force to the respective support strands to cause the support strands to be pulled inwardly toward the respective chute hinges to fold into a nested, stowed position when the chute segments are retracted.

US Patent:

20210016968, Jan 21, 2021

Filed:

Jul 16, 2019

Appl. No.:

16/512498

Inventors:

Chung Hsin Lee - , US
- Taipei City 110, TW
Chung Hsin Lee - Las Vegas NV, US

International Classification:

B65G 1/137

Abstract:

An automated transporting, storage and retrieval system is provided and includes a control center, and an automated guided mobile unit, a picking spot and a delivery spot in an area; the automated guided mobile unit is connected to the control center; plural storage and retrieval shelves deployed within the area with one of them located on the picking spot containing an inventory item; the control center is configured to: transmit a task command including the inventory item and the delivery spot to the automated guided mobile unit; the automated guided mobile unit is configured to: determine whether it is engaged with the shelf; if yes, the automated guided mobile unit receives the task command and approaches the shelf located on the picking spot to retrieve the inventory item to deliver it to the delivery spot; if no, the automated guided mobile unit approaches one of the shelves and engages therewith.

US Patent:

20210018926, Jan 21, 2021

Filed:

Jul 16, 2019

Appl. No.:

16/512483

Inventors:

Chung Hsin Lee - , US
- Taipei City, TW
Chung Hsin Lee - Las Vegas NV, US

International Classification:

G05D 1/02
G05D 1/00
G06K 9/00

Abstract:

A navigation method is provided and includes: deploying a plurality of stations about a geographic area; providing the automated guided vehicle in the geographic area; transforming a position of each of the stations into a coordinate in a map; receiving a task command by the automated guided vehicle that includes an end station from one of the plurality of stations to be reached; retrieving a path parameter; identifying a start station as the closest station to the automated guided vehicle; calculating a traveling route connecting the stations by the processor of the automated guided vehicle in an order from the start station to the end station; determining whether a physically marked line has been detected, if no, controlling the automated guided vehicle to travel along the traveling route and along the moving path from one of the stations to one another of the stations with reference to the path parameters.