Road structure – process – or apparatus – Miscellaneous road structure
Patent
1998-10-13
2000-08-22
Lisehora, James A.
Road structure, process, or apparatus
Miscellaneous road structure
404 713, 404 771, E01D 100, B65G 6924
Patent
active
061061913
ABSTRACT:
A loading dock leveler is mounted in a dock slab by pre-casting and placing a four sided monolithic concrete box insert defining a bottom, two lateral side walls, a rear wall and an open front above the bottom and between the side walls, to provide a dock leveler pit. The remainder of the dock slab is poured around the precast box insert. Before or after placing and embedding the precast box insert, a leveler platform, base and extension mechanism are installed. An angle iron or other internal fixture can be embedded in the box insert during casting to provide a welding point for affixing one or both of a hinge leaf for the platform and a base of the leveler mechanism. The box insert also is provided with external protrusions such as a tenon-like bead protruding outwardly from the side and rear walls. When the slab is poured around the box insert, the tenon like protrusion engages mechanically in the slab as the pour cures.
REFERENCES:
patent: 3327335 (1967-06-01), Beckwith et al.
patent: 3335442 (1967-08-01), Kumpolt
patent: 4110860 (1978-09-01), Neff et al.
patent: 4118817 (1978-10-01), Burnham
patent: 4570277 (1986-02-01), Hahn et al.
patent: 4928340 (1990-05-01), Alexander
patent: 5442825 (1995-08-01), Hahn et al.
LandOfFree
Loading dock leveler with precast base box insert does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Loading dock leveler with precast base box insert, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loading dock leveler with precast base box insert will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-573140