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US3853162A
Expired / Lapsed
US
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Method of prefabricating a truss
Assignee: TROY STEEL CORP
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Filing: 1973-03-02
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Granted: 1974-12-10
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Expires: 1993-03-02
Abstract
Abstract A wooden floor or roof structure comprises a plurality of floor or roof panels supported in a common plane by a series of spaced parallel prefabricated wooden trusses. Each truss comprises an elongated horizontal wooden upper chord having its end spanning a pair of walls and a wooden lower chord having a length less than the distance between the supporting points of the upper chord. The chords are joined by a plurality of wooden web members with established axes of equal lengths, the ends of said webs cut with a first cut made at a predetermined reference pitch and a plurality of said ends cut with second cuts which do not pass through the established axes.
Inventors
- 👤 D Menge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:40
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/02; E04B5/14; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/17; F; F16; F16B; F16B15/00; F16B15/0023; F16B15/003; F16B15/0046; F16B15/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
177 words
In the method wherein an upper wooden chord and a lower wooden chord are joined by primary and secondary wooden web members to form a truss, and wherein saw cuts are made to form ends of said members to abut against surfaces of said chords and said members; the improvement which comprises the steps of: A. cutting a primary web member such that an end thereof is cut at a predetermined reference pitch; B. cutting a plurality of secondary web members with a first cut at each end thereof such that an end of each said secondary web member is made with a cut at said reference pitch and such that said secondary web members, following said first cuts at each end thereof, have established axes of the same axial length; and C. making second cuts in a plurality of said ends of said secondary web members to form in each latter end a surface of a pitch which is different from the pitch of said first cut therein, said second cuts passing outside of said axes.
Claim 2
Dependent Claim
177 words
In the method wherein an upper wooden chord and a lower wooden chord are joined by primary and secondary wooden web members to form a truss, and wherein saw cuts are made to form ends of said members to abut against surfaces of said chords and said members; the improvement which comprises the steps of: A. cutting a primary web member such that an end thereof is cut at a predetermined reference pitch; B. cutting a plurality of secondary web members with a first cut at each end thereof such that an end of each said secondary web member is made with a cut at said reference pitch and such that said secondary web members, following said first cuts at each end thereof, have established axes of the same axial length; and C. making second cuts in a plurality of said ends of said secondary web members to form in each latter end a surface of a pitch which is different from the pitch of said first cut therein, said second cuts passing outside of said axes.
Claim 3
Dependent Claim
27 words
The method according to claim 1 wherein said first cut at both ends of a plurality of secondary web members is made at said predetermined reference pitch.
Claim 4
Dependent Claim
179 words
In the method wherein an upper wooden chord and a lower wooden chord are joined by at least one primary and by secondary wooden web members to form a truss the improvement which comprises the steps of: A. cutting said primary web member such that an end thereof is cut at a predetermined reference pitch; B. cutting said secondary web members with a first cut at each end thereof to form surfaces adapted to abut against the juxtaposed surfaces of a chord, at least one end of each said member being cut at said reference pitch; and said secondary webs, following said first cut, having established axes of the same axial length; and C. making second cuts in a plurality of said ends of said secondary web members to form second surfaces in each latter end, said second surfaces adapted to abut against juxtaposed surfaces of other web members; each said second cut in an end having a pitch which is different from the pitch of the first cut therein; and each said second cut passing outside said axes.
Claim 5
Dependent Claim
179 words
In the method wherein an upper wooden chord and a lower wooden chord are joined by at least one primary and by secondary wooden web members to form a truss the improvement which comprises the steps of: A. cutting said primary web member such that an end thereof is cut at a predetermined reference pitch; B. cutting said secondary web members with a first cut at each end thereof to form surfaces adapted to abut against the juxtaposed surfaces of a chord, at least one end of each said member being cut at said reference pitch; and said secondary webs, following said first cut, having established axes of the same axial length; and C. making second cuts in a plurality of said ends of said secondary web members to form second surfaces in each latter end, said second surfaces adapted to abut against juxtaposed surfaces of other web members; each said second cut in an end having a pitch which is different from the pitch of the first cut therein; and each said second cut passing outside said axes.
Claim 6
Dependent Claim
27 words
The method according to claim 3 wherein said first cut at both ends of a plurality of secondary web members is made at said predetermined reference pitch.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |