Punching tool

Details Punching tool Punching tool

1988-10-11

1990-05-08

Watts, Douglas D.

Cutlery

Perforating or indenting implements

With portion positioned in work aperture

30361, 30362, 30363, B21D 2824, B26F 100

Patent

active

049226150

ABSTRACT:
The punching tool of the subject invention has a handle and a hand grip which can be rotated to any position convenient for use, so that the punching operation can be performed easily, irrespective of the shape of the object being treated. The manual hydraulic pump of the tool is connected for rotation to one end of a tubular connector, while the other end of this tubular connector is connected to a hydraulic cylinder in such a manner that the tubular connector can be turned about an axis perpendicular to the axis of the hydraulic cylinder.

REFERENCES:
patent: 2359699 (1944-10-01), Valentine
patent: 3344519 (1967-10-01), Goodman
patent: 4006784 (1977-02-01), Dudek
patent: 4057897 (1977-11-01), Seymour
patent: 4495699 (1985-01-01), Oakes
patent: 4602532 (1986-07-01), Unger

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