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:
Feb. 05, 2002
Filed:
Dec. 04, 1998
Applicant:
Inventors:
Jon E. Fleagle, Waynesboro, PA (US);
Dennis W. Eckstine, Waynesboro, PA (US);
William W. Banks, New Market, MD (US);
Francis R. Eyler, Hanover, PA (US);
Assignee:
Grove U.S. L.L.C., Shady Grove, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C 2/390 ; B66C 1/318 ; B66C 1/312 ;
U.S. Cl.
CPC ...
B66C 2/390 ; B66C 1/318 ; B66C 1/312 ;
Abstract
In the anti-two block device, a non-contact measuring device detects in one form or another the distance between a boom nose and a load-bearing member supported thereby. If the distance detected is less than a predetermined threshold value, the device triggers a warning or other operation to assist an operator in preventing anti-two blocking.