Patent US3713381A successfully refreshed from Google Patents.
US3713381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof truss machine
Assignee: INTER LOCK STEEL CO Inc
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Filing: 1970-12-08
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Granted: 1973-01-30
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Expires: 1990-12-08
Abstract
Abstract A machine for assembling wood frames such as roof trusses made of wood members abutted together and secured by spiked truss connector plates consists of a hydraulically actuated C-shaped clamping press having upper and lower press plates and being movably mounted for horizontal motion on a supporting frame. Movable support means is provided for the wood members to position the same in spaced relation to the upper and lower press plates of the C-shaped clamping press to permit quick and easy placement of the spiked truss connecting plates. A hydraulic actuating system including an accumulator is provided to actuate the C-shaped clamping press in a hammer like blow driving the spiked truss connector plates into the wooden members.
Inventors
- 👤 R Mort
- 👤 G Creaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:39
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/15; B27F7/155; B27F7/02; Y; Y10; Y10S; Y10S100/00; Y10S100/913
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
190 words
A roof truss machine consisting of a frame having an elevated upper portion, track ways on said frame below said upper portion, a sub-frame assembly movably positioned on said track ways for movement therealong, a first clamping press plate on said subframe assembly, a C-shaped member positioned for vertical movement on and with respect to said sub-frame assembly and extending above and below said upper portion of said frame, a second clamping press plate on said C-shaped member and a hydraulic piston and cylinder assembly interconnecting said subframe assembly and said C-shaped member for moving said C-shaped member relative to said sub-frame assembly, said clamping preSs plates being in vertical alignment, a support frame yieldingly positioned on the upper portion of said frame, said sub-frame assembly and said C-shaped member being movable horizontally and vertically respectively within the area of said support frame, and wherein said clamping press plates are positioned one above and one below said support frame, said support frame arranged to support roof truss members in said roof truss machine, a fluid power system in said roof truss machine for actuating said hydraulic piston and cylinder assembly.
Claim 2
Dependent Claim
190 words
A roof truss machine consisting of a frame having an elevated upper portion, track ways on said frame below said upper portion, a sub-frame assembly movably positioned on said track ways for movement therealong, a first clamping press plate on said subframe assembly, a C-shaped member positioned for vertical movement on and with respect to said sub-frame assembly and extending above and below said upper portion of said frame, a second clamping press plate on said C-shaped member and a hydraulic piston and cylinder assembly interconnecting said subframe assembly and said C-shaped member for moving said C-shaped member relative to said sub-frame assembly, said clamping preSs plates being in vertical alignment, a support frame yieldingly positioned on the upper portion of said frame, said sub-frame assembly and said C-shaped member being movable horizontally and vertically respectively within the area of said support frame, and wherein said clamping press plates are positioned one above and one below said support frame, said support frame arranged to support roof truss members in said roof truss machine, a fluid power system in said roof truss machine for actuating said hydraulic piston and cylinder assembly.
Claim 3
Dependent Claim
190 words
A roof truss machine consisting of a frame having an elevated upper portion, track ways on said frame below said upper portion, a sub-frame assembly movably positioned on said track ways for movement therealong, a first clamping press plate on said sub-frame assembly, a C-shaped member positioned for vertical movement on and with respect to said sub-frame assembly and extending above and below said upper portion of said frame, a second clamping press plate on said C-shaped member and a hydraulic piston and cylinder assembly interconnecting said sub-frame assembly and said C-shaped member for moving said C-shaped member relative to said sub-frame assembly, said clamping preSs plates being in vertical alignment, a support frame yieldingly positioned on the upper portion of said frame, said sub-frame assembly and said C-shaped member being movable horizontally and vertically respectively within the area of said support frame, and wherein said clamping press plates are positioned one above and one below said support frame, said support frame arranged to support roof truss members in said roof truss machine, a fluid power system in said roof truss machine for actuating said hydraulic piston and cylinder assembly.
Claim 4
Dependent Claim
190 words
A roof truss machine consisting of a frame having an elevated upper portion, track ways on said frame below said upper portion, a sub-frame assembly movably positioned on said track ways for movement therealong, a first clamping press plate on said sub-frame assembly, a C-shaped member positioned for vertical movement on and with respect to said sub-frame assembly and extending above and below said upper portion of said frame, a second clamping press plate on said C-shaped member and a hydraulic piston and cylinder assembly interconnecting said sub-frame assembly and said C-shaped member for moving said C-shaped member relative to said sub-frame assembly, said clamping preSs plates being in vertical alignment, a support frame yieldingly positioned on the upper portion of said frame, said sub-frame assembly and said C-shaped member being movable horizontally and vertically respectively within the area of said support frame, and wherein said clamping press plates are positioned one above and one below said support frame, said support frame arranged to support roof truss members in said roof truss machine, a fluid power system in said roof truss machine for actuating said hydraulic piston and cylinder assembly.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |