Tube crimping/bending apparatus

Details Tube crimping/bending apparatus Tube crimping/bending apparatus

2005-02-15

2005-02-15

Crane, Daniel C. (Department: 3725)

Metal deforming

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

Plural or complex apparatus

C072S370040

Reexamination Certificate

active

06854313

ABSTRACT:
Tube bending/crimping apparatus has a frame, a toggle assembly and a carriage assembly. The toggle assembly has overlapping male dies with tapering working tips that form a self-centering wedge. The carriage assembly has a shaft with a pinion that engages a rack on the frame to move the carriage assembly. A handle on the shaft is linked to the shaft by a cam clutch and a plunger, so that when the plunger is engaged, pushing the handle moves the carriage assembly forward. When the plunger is disengaged, the carriage assembly is easily moved back to the starting position. Mechanical stops for the handle assure consistent advancement. A receiving element on the carriage assembly has grooves for several sizes and orientations of tube.

REFERENCES:
patent: 1020028 (1912-03-01), Dymond
patent: 1875186 (1932-08-01), Tilp
patent: 3670553 (1972-06-01), Nothum et al.
patent: 3861184 (1975-01-01), Knudson
patent: 4198842 (1980-04-01), Pawlaczyk
patent: 5836194 (1998-11-01), Micouleau et al.

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