Portable bridge

Bridges – Transportable

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E01D 1512

Patent

active

040730255

ABSTRACT:
A portable bridge structure for carrying trucks and other large vehicles is described including two longitudinal bridge sections which are transported separately to the bridge site and are fastened together after installation by means of pivotable diaphragm members. The pivotable diaphragm members are pivotally attached to one bridge section and after pivoting into position, are bolted to bracing flanges on both sections to fixedly secure the sections together. Each bridge section includes at least one longitudinal support member and a plurality of cross members extending across the top of such support member to provide a support frame of a generally T-shaped cross section. The longitudinal support member may be either a hollow built-up beam member or it may be formed by two I-beams which are joined together by rigid interconnecting members. The portable bridge of the present invention is especially useful on logging roads, and can be releasably mounted for removal at the end of the logging operation.

REFERENCES:
patent: 498994 (1893-06-01), Strobel
patent: 854329 (1907-05-01), Charron
patent: 1252873 (1918-01-01), Adams
patent: 2546676 (1951-03-01), North
patent: 2744590 (1956-05-01), Butts
patent: 2977612 (1961-04-01), Frost
patent: 3021544 (1962-02-01), Gillois
patent: 3438663 (1969-04-01), Colson
patent: 3492683 (1970-02-01), Wagner
patent: 3754293 (1973-08-01), Wagner
patent: 3886613 (1975-06-01), Busch

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

Portable 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 Portable bridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable bridge will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-517874

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