Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 3,899,950
Bar shear
Patentee:
Jim Dvorak (exact or similar names) - Cosmos, MN

USPTO Classifications:
83/588, 83/599, 83/602, 83/642

Tool Categories:
metalworking machines : metal shearing machines

Assignees:
None

Manufacturer:
Uni-Hydro Inc. - Cosmos, MN
Dynamic Specialties - Cosmos, MN

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 06, 1974
Granted: Aug. 19, 1975

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Uni-Hydro Inc.
Description:
"A bar shear is provided including a pair of side plates and an intermediate moveable plate. The moveable plate includes a circular aperture accommodating a disc. A shaft means offset from the center of the disc causes movement of the moveable plate as the discs are rotated about the offset shaft means. Cooperable notches are provided in the side plates and moveable plate. Upon movement of the moveable plate, a bar or strip of metal or the like is sheared off by the moveable plate."

This shear was manufactured by the Dvorak family, which eventually organized as Dynamic Specialties, which became Uni-Hydro Inc.

Copyright © 2002-2024 - DATAMP