Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 2,691,317
Locking Device For Pipe Wrenches
Patentee:
Ernest T. Olson - Oshkosh, NE

USPTO Classifications:
81/325, 81/362, 81/390

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Mid-America Products, Inc. - Omaha, NE

Witnesses:
none listed

Patent Dates:
Applied: Dec. 07, 1953
Granted: Oct. 12, 1954

Patent Pictures: [ 1 | 2 ]
Ernest T. Olson patent October 12, 1954
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The "over-center" lever handle attached to a link just ahead of the adjusting nut tightens the grip, and can lock on if properly adjusted.

The specifications reference previous patent numbers 884,422, 1,309,874, 1,503,662, 1,747,360, 1,811,452, 2,524,376, and 2,657,606.

Produced as the EAGLE GRIP pipe wrench.

Copyright © 2002-2017 - DATAMP