The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2007
Filed:
Apr. 24, 2000
Applicant:
Chin Thong Lee, Singapore, SG;
Inventor:
Chin Thong Lee, Singapore, SG;
Assignee:
NSL Engineering Pte Ltd, Singapore, SG;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C 1/00 (2006.01); B66C 13/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spreader () for lifting a freight container () comprises a frame () and two pairs of pickup elements (). Each pair of pickup elements () are mounted at opposite ends of the frame () and the frame () is adjustable to adjust the separation of the two pairs of pickup elements (). A detector () is movably mounted on the frame () for movement between a first position in which the detector () is closer to one pair of pickup elements () and a second position in which the detector () is closer to the other pair of pickup elements (). The detector is adapted to detect a discontinuity in an object () located below the spreader ().