Commercial lifting device—automatic-slide-forward-bridge

Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C254S13300A, C254SDIG016

Reexamination Certificate

active

07413168

ABSTRACT:
The power unit includes a generally rectangular frame having a pair of parallel lift arms with forward ends extendable upward therefrom. The lift arms have leveling pads pivotally attached to the outer sides thereof, wherein each leveling pad includes a generally rectangular plate oriented vertically having a rearward edge and an upper edge with a longitudinal flange extending outward from the upper edge. The lift bridge slides along the upper surface of the lift arms and includes a rectangular plate having a bottom surface and a pair of sides. Each side has an inner longitudinal channel for engaging the outward flange of the leveling pad, and has a finger extending rearward with a flange extended downward for abutting the rearward edge of the leveling pad. The forward ends of the lift arms are elongated beyond the pivot connection of the leveling pads, and the bottom surface of the bridge includes recesses therein for receiving the elongated ends of the lift arms when in the elevated position, for locking the bridge onto the lift arms. The bridge includes a mechanism for automatically biasing the bridge toward the forward ends of the lift arms.

REFERENCES:
patent: 4289298 (1981-09-01), Kameda
patent: 4589630 (1986-05-01), Arzouman
patent: 4641813 (1987-02-01), Arzouman
patent: 4697788 (1987-10-01), Arzouman
patent: 4960264 (1990-10-01), Arzouman et al.
patent: 5110089 (1992-05-01), Slay
patent: 5183235 (1993-02-01), Arzouman et al.
patent: 2003/0218156 (2003-11-01), Arzouman
patent: 2003/0218157 (2003-11-01), Arzouman
patent: 2003/0218158 (2003-11-01), Arzouman
patent: 2003/0218159 (2003-11-01), Arzouman

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Commercial lifting device—automatic-slide-forward-bridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Commercial lifting device—automatic-slide-forward-bridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Commercial lifting device—automatic-slide-forward-bridge will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4002560

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.