Trimmable truss apparatus

Details Trimmable truss apparatus Trimmable truss apparatus

Filed on

1997-09-23

Date issued

1999-02-09

Examiner

Friedman, Carl D.

Patent Class

Static structures (e.g., buildings)

SubClass

Machine or implement

Other Related Categories

52690, 52693, 527301, 527307, E04C 312

Type

Patent

Status

active

Patent number

058679634

Description

ABSTRACT:
An improved trimmable truss apparatus and method are disclosed, the truss having upper and lower plates centrally interconnected by diagonal web members, and each respective end providing a trimmable section comprising extended upper and lower chords creating an opening into which a separate trimmable insert section is inserted, such inserts made either as a separate wooden I-beam section, or as a glued laminated beam section. The associated nailing plates placed adjacent the last vertical member extend outwardly, ie. overlap, a substantial minimum distance onto the trimmable end section, whereby the truss end sections cannot be trimmed too closely to the last vertical member. The final diagonal web member at each respective end is placed in an upwardly-aligned positioned so as to be in tension.
An alternative embodiment is disclosed in which the separate trimmable insert sections are formed from a glued laminated beam. The upper and lower chords for the present improved trimmable truss can be formed as either composite members or as wood components.

REFERENCES:
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patent: 4207719 (1980-06-01), Knowles
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patent: 4435929 (1984-03-01), Bussell
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patent: 4893961 (1990-01-01), O'Sullivan et al.
patent: 5560177 (1996-10-01), Brightwall
patent: 5592800 (1997-01-01), Koo et al.
patent: 5649403 (1997-07-01), Haisch
patent: 5653080 (1997-08-01), Bergeron

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