Traversing hoists – With motor control – Manual fluid valve actuator
Patent
1998-06-01
1999-12-14
Brahan, Thomas J.
Traversing hoists
With motor control
Manual fluid valve actuator
212258, B66C 2346
Patent
active
060005637
ABSTRACT:
An assembly is provided that enables the operation of all hydraulic sidebooms to be achieved while simultaneously inherently avoiding commonly recurring problems attributable to inadvertent contact between the hook block and the upper block or to an impending tipping condition. Application of joystick technology is provided to enable simultaneous manipulation of the boom and load, wherein a long-established, routinely-accepted combinatin of two to three controls is replaced by a single joystick control. A fail-safe thumb actuator is also provided for a single joystick control. An anti-contacting feature is provided that stops the upward travel of the hook block if it is about to come in contact with the sideboom's stationary upper block, and thus preventing consequent damage that wound result if contact took place. All hydraulically-operated sidebooms are inherently insulated from the occurrence of unsafe conditions attributable to exceeding machine capacities by an anti-tipping feature that monitors a combination of boom angle and weight of the line load.
REFERENCES:
patent: 3523614 (1970-08-01), Walker
patent: 5107997 (1992-04-01), Worsley
patent: 5805137 (1998-09-01), Yasutake
LandOfFree
Sideboom assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sideboom assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sideboom assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-855574