Trailer-based support frame for use in vertically transferring p

Details Trailer-based support frame for use in vertically transferring p Trailer-based support frame for use in vertically transferring p

1995-02-13

1998-03-10

Melius, Terry Lee

Fire escape, ladder, or scaffold

Having transpositioning base and erecting means

182222, 182230, E04G 314, B66C 2318

Patent

active

057250707

ABSTRACT:
Disclosed herein is an apparatus for facilitating vertical entry into a confined entry space such as a manhole. The apparatus includes a trailer-type base, a support frame formed on the base for supporting a hoisting device, and stabilizing posts for stabilizing the support frame. The apparatus preferably also includes a barricade mounted on the base for preventing accidental entry into an area beneath the support frame, and can include a support arm for vertically transporting a weight over an edge. The apparatus provides for convenient entry into a manhole by a worker while preventing accidental entry by a pedestrian, and also can be used for raising and/or lowering persons and/or objects over the edge of a wall, cliff, or pit.

REFERENCES:
patent: 974381 (1910-11-01), Hogston
patent: 3093210 (1963-06-01), Picard
patent: 3825095 (1974-07-01), Clark
patent: 3871477 (1975-03-01), Kuest
patent: 3937301 (1976-02-01), Bertail
patent: 4239253 (1980-12-01), Golze
patent: 4274507 (1981-06-01), Williams
patent: 4276956 (1981-07-01), Mamula et al.
patent: 4293054 (1981-10-01), Pieri
patent: 4311208 (1982-01-01), Macrorie et al.
patent: 4397373 (1983-08-01), Ream et al.
patent: 4442919 (1984-04-01), Fulcher
patent: 4502725 (1985-03-01), Wiant
patent: 4588148 (1986-05-01), Krauchick
patent: 4589523 (1986-05-01), Olson et al.
patent: 4660679 (1987-04-01), Ostrobrod
patent: 4811803 (1989-03-01), Green
patent: 4838439 (1989-06-01), Baziuk
patent: 5022489 (1991-06-01), Sauber
patent: 5295557 (1994-03-01), Taylor
patent: 5484035 (1996-01-01), Wildner

Affiliated with

Also associated with

Rating

Trailer-based support frame for use in vertically transferring p does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trailer-based support frame for use in vertically transferring p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trailer-based support frame for use in vertically transferring p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132080