Prefabricated multi-purpose support block for use with I-joists

Details Prefabricated multi-purpose support block for use with I-joists Prefabricated multi-purpose support block for use with I-joists

2006-10-24

2006-10-24

Wood, Kimberly (Department: 3632)

Static structures (e.g., buildings)

Three-way corner construction

Floor supports walls

C052S069000, C052S611000

Reexamination Certificate

active

07124544

ABSTRACT:
A multi-purpose, shaped, prefabricated, structurally-enhancing support block conforms to the side profiles of conventional I-joists. The support block is preferably installed by fastening it to the I-joist web, rather than to the I-joist flanges, thus preserving the integrity of the I-joist flanges. Further, support blocks may be used in mid-span where additional point-load support is needed, or at joist ends for additional load bearing and/or enhanced rim board, attachment and nailing capabilities. The preferred support block includes a load-jack portion for bearing compressive load and a web and flange support portion reinforcing the thin web of an I-joist to help prevent buckling, rolling, or twisting of the I-joist under peak load conditions.

REFERENCES:
patent: 1377891 (1921-05-01), Knight
patent: 2332052 (1943-10-01), Brent
patent: 3960637 (1976-06-01), Ostrow
patent: 4070845 (1978-01-01), Cody
patent: 4336678 (1982-06-01), Peters
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patent: 4815243 (1989-03-01), Pardo
patent: 4947612 (1990-08-01), Taylor et al.
patent: 6209282 (2001-04-01), Lafrance
patent: 6497080 (2002-12-01), Malcolm
Trus Joist™ pamphlet showing building techniques with explanation by Applicant's Agent of ‘Web Stiffener Attachment’ (p. 7 of pamphlet), Jul. 2001.
Connector Selection Guide by Boise Cascade Timber and Wood Products Division, Jun. 2000.

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