Tube bending fixture

Details Tube bending fixture Tube bending fixture

2007-02-20

2007-02-20

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

C425S391000, C425S392000, C425S394000, C425S403000

Reexamination Certificate

active

10804649

ABSTRACT:
A tube bending fixture having a frame. An upper and lower tube support are both pivotally mounted to the frame between a first and second pivotal position. A bar is slidably mounted to the upper tube support and movable between an extended and a retracted position. At least one lower mandrel is mounted to the lower tube support and is dimensioned to fit within one end of a tube to be bent. At least one upper mandrel is mounted to the slidable bar, and the upper and lower mandrels are aligned with each other when the upper and lower tube supports are in their first pivotal position. The upper mandrel is dimensioned to fit within the second end of the tube to be bent when the bar is in its extended position. A former is secured to the frame and includes a channel which engages a midportion of the tube and conforms to the desired shape of the tube when the first and second tube supports are in their second pivotal position. A locking mechanism selectively retains the upper and lower tube supports in their second pivotal position.

REFERENCES:
patent: 5066212 (1991-11-01), Moran, Jr.
patent: 5290166 (1994-03-01), Heatherly
patent: 5424015 (1995-06-01), Matsuda et al.

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