Expandable beam structure

Details Expandable beam structure Expandable beam structure

1977-11-17

1978-11-28

Perham, Alfred C.

Static structures (e.g., buildings)

Lazy tong extension unit

74521, 182 69, 182141, E04H 1218

Patent

active

041269748

ABSTRACT:
The invention relates to an expandable beam structure comprising a plural-sided structure, each side formed of consecutive pairs of scissor links pivotally connected end-to-end to form a side. The plural-sided figure is connected by intermediate sides and the main sides are interconnected through pivot members which pivot the ends of the links and interconnect the sides. The pivot members combined to form a locking device to maintain the beam in an erected position and further support a tensioning means whenever it is desired to tension the beam.

REFERENCES:
patent: 217439 (1879-07-01), Zimmerman
patent: 430935 (1890-06-01), Edwards
patent: 1095391 (1914-05-01), Fogle
patent: 1511679 (1924-10-01), Schwarz
patent: 2625443 (1953-01-01), Sensenbaugh
patent: 2697845 (1954-12-01), Broner
patent: 3053351 (1962-09-01), Fulcher

Affiliated with

Also associated with

Rating

Expandable beam structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable beam structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable beam structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-972764