US Patent: 4,907,481 - Powered press with manual punch and die alignment capability


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US Patent: 4,907,481

Powered press with manual punch and die alignment capability

Patentees:

Charles J. Dvorak (exact or similar names) - Cosmos, MN

Jim Dvorak (exact or similar names) - Cosmos, MN

USPTO Classifications:

29/465, 83/571, 83/639.1, 83/699.31

Tool Categories:

metalworking machines : metal punching machines

metalworking tools : metal punches

Assignees:

None

Manufacturer:

Uni-Hydro Inc. - Cosmos, MN

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 02, 1987
Granted:	Mar. 13, 1990

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Uni-Hydro Inc.

Description:

This invention relates to a die alignment mechanism for the press portion of a combination press and shear, i.e., an ironworker. The shear mechanism is that of patent 4,054,075.