Corrugated sheet member bending machine

Details Corrugated sheet member bending machine Corrugated sheet member bending machine

2008-01-01

2008-01-01

Crane, Daniel C (Department: 3725)

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

C072S379600

Reexamination Certificate

active

11291921

ABSTRACT:
A corrugated sheet member bending machine is disclosed to include a base frame, a housing pivotally supported on the base frame and turnable within 90-degrees to fit different workpiece insertion angles and different workpieces, a set of drive rollers mounted on a wheel shaft and rotatable by a motor, a set of driven rollers pivotally supported on a sliding plate movable relative to the drive rollers by a hydraulic cylinder, a bottom die fixedly mounted inside the housing at the bottom, and a movable upper die movable by a hydraulic cylinder for stamping on the inserted workpiece against the bottom die to curve the workpiece.

REFERENCES:
patent: 2350379 (1944-06-01), Weightman
patent: 2775284 (1956-12-01), Hermann
patent: 2944583 (1960-07-01), Welindt
patent: 3874214 (1975-04-01), Racicot
patent: 4580433 (1986-04-01), Aberg
patent: 4603572 (1986-08-01), Van Breukelen et al.
patent: 4660399 (1987-04-01), Suter et al.
patent: 4864837 (1989-09-01), Fielden, Jr.

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