Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Reexamination Certificate
2007-06-05
2007-06-05
Marcelo, Emmanuel M (Department: 3654)
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
C254S329000, C254S375000
Reexamination Certificate
active
11090332
ABSTRACT:
A load arrestor for use in conjunction with a primary lift, the load arrestor comprising a spool about which winds a safety line attached to a load supported at least in part by the primary lift, a lock mechanism comprising a lock plate connected to and rotatable with the spool, the plate defining a plurality of slots; and at least one cylinder having a locking pin for insertion into at least one of the plurality of slots to inhibit rotation of the lock plate and the spool; a sensor for sensing motion of the spool; and a controller which sends a signal to the at least one cylinder to activate the locking pin when the motion of the hoist drum exceeds a predetermined limit. Alternate aspects of the load arrestor are also provided.
REFERENCES:
patent: 4520998 (1985-06-01), Flaig
patent: 4834341 (1989-05-01), Baum
patent: 4846313 (1989-07-01), Sharp
patent: 5127631 (1992-07-01), Flaig
patent: 5458318 (1995-10-01), Jussila
patent: 5934408 (1999-08-01), Flux
patent: 6123280 (2000-09-01), Yuen et al.
patent: 6332439 (2001-12-01), Sekiya et al.
patent: 6386164 (2002-05-01), Mikame et al.
patent: 6431482 (2002-08-01), Ikuta
patent: 6483047 (2002-11-01), Zaharia et al.
patent: 6530454 (2003-03-01), Renton et al.
patent: 6550746 (2003-04-01), Drost
patent: 6684634 (2004-02-01), Sakamoto
A.R.M.S. Inc; 3-D ARM; one-page drawing of anti-drift brake having off-set locking cylinders; Jul. 11, 2001; A.R.M.S. Inc, Cedar Falls, IA; device presented in United States.
Bourget Anthony J.
Marcelo Emmanuel M
LandOfFree
Load arrestor, lifting system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load arrestor, lifting system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load arrestor, lifting system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3851811