Traversing hoists – Boom position lock
Reexamination Certificate
2006-04-25
2008-05-13
Brahan, Thomas J. (Department: 3654)
Traversing hoists
Boom position lock
C212S299000
Reexamination Certificate
active
07370769
ABSTRACT:
A hoist for retrieving, lifting and positioning a light load of up to about 1000 lbs, is described. The hoist comprises a boom support column having an attaching lower end and a boom support upper end. The boom support upper end has a boom assembly connector and a transverse support surface. The boom assembly has a connecting support wall and a lower projecting connector for rotational connection with the boom assembly connector for maintaining the boom at an upward angular position. A releasable locking mechanism locks the boom at the upward angular position. A boom actuating brake arrests rotational displacement between the connecting support wall and the transverse support surface when the boom is at a substantially horizontal load retrieving position. A pulley is rotatably secured to an axle secured at a free end of the boom. The pulley is adapted to guide a cable thereon through a cable guide linkage to align and maintain the cable on the pulley. The pulley is supported on an axle which is connected to a lateral pivot support.
REFERENCES:
patent: 2782940 (1957-02-01), Beseler
patent: 2841960 (1958-07-01), Holan et al.
patent: 3308611 (1967-03-01), Barber
patent: 3556226 (1971-01-01), Brewer et al.
patent: 3653193 (1972-04-01), Coughran, Jr.
patent: 3819059 (1974-06-01), Mantel
patent: 4141591 (1979-02-01), Spicer
patent: 4597498 (1986-07-01), Spinosa et al.
patent: 5445487 (1995-08-01), Koscinski, Jr.
patent: 5758785 (1998-06-01), Spinosa et al.
patent: 5853282 (1998-12-01), Bechler et al.
patent: 6071065 (2000-06-01), Zackovich
Couture Stéphane
Picard Richard
Brahan Thomas J.
Ogilvy Renault LLP
LandOfFree
Hoist for retrieving and lifting loads does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hoist for retrieving and lifting loads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hoist for retrieving and lifting loads will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3985325