Traversing hoists – Having horizontally swinging boom or bridge – And means to swing boom horizontally
Patent
1987-04-13
1988-09-06
Peters, Jr., Joseph F.
Traversing hoists
Having horizontally swinging boom or bridge
And means to swing boom horizontally
212248, B66C 2386
Patent
active
047686626
ABSTRACT:
A hydraulic pivot device for pivotally connecting a support housing to a boom of the type secured to a vehicle. The hydraulic pivot device comprises a main housing having a gear-engaging piston which is axially displaceable in a piston cylinder provided therein. The piston has opposed piston heads and is sealingly displaced placed in the piston cylinder by fluid pressure applied at a selected one of opposed ends of the piston cylinder. The piston is also positively interlocked by the use of lock valves which are port-mounted at each end of the piston cylinder. A drive shaft having a drivable pinion gear is supported within the housing with a drivable pinion gear being in toothed engagement with a toothed section of the piston so that axial displacement of the piston wall impact axial rotation to the drive shaft. The drive shaft has a connection section exteriorly of the housing which is in engagement with a connector element which is secured to the support housing for imparting controlled displacement thereof.
REFERENCES:
patent: 2796998 (1957-06-01), Sundin
patent: 3032207 (1962-05-01), McIntyre
patent: 4041889 (1977-08-01), Blanchard
patent: 4111316 (1978-09-01), Wappler
patent: 4479400 (1984-10-01), Rieger
Leduc Sylvain
Poudrier Bertrand
Thibault Francois
Avila Stephen P.
Peters Jr. Joseph F.
Posi-Plus Technologies Inc.
LandOfFree
Self-locking hydraulic pivot device for interconnecting a suppor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-locking hydraulic pivot device for interconnecting a suppor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-locking hydraulic pivot device for interconnecting a suppor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1601930