Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2001-12-27
2009-10-27
Hong, John C (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S897312
Reexamination Certificate
active
07607210
ABSTRACT:
According to the method, the transversal wire or rebar to be formed (1) and the longitudinal wires or rebars or other material of prismatic cross section (2), (3) are fed to the main forming and welding machine subsystem, in a stepwise manner, at the appropriate distance each time, through a driving mechanism (22-30). At this location, the transversal wire (1) is cut and then formed upon the action of a press (36). Welding of the formed transversal frame with one of the two longitudinal wires is performed while the formed transversal wire is still restrained by the action of the press (38) at the formation location. Welding with the second longitudinal wire is performed at the next production step, simultaneously with the welding of the next transversal frame with the first longitudinal wire, at the formation location. After the welding action, the transversal frame is released by the press and the forming tools (37-39), and the next production step is initiated. The product is made in a continuous shape and is cut at the proper lengths, by a cutter (45).
REFERENCES:
patent: 4291732 (1981-09-01), Artzer
patent: 4500763 (1985-02-01), Schmidt et al.
patent: 4526025 (1985-07-01), Ritter et al.
patent: 5446254 (1995-08-01), Ritter et al.
patent: 0355776 (1995-05-01), None
patent: 2246327 (1975-05-01), None
patent: 2397895 (1979-02-01), None
patent: 05-076974 (1993-03-01), None
Hong John C
Kapsalas George
Patentbuero Paul Rosenich AG
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