Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,000,724
Pipe Wrench
Patentee:
William H. Duffey - South Bethlehem, PA

USPTO Classifications:
81/90.9

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Bethlehem Wrench Company - Bethlehem, PA

Witnesses:
O. W. Torrens
R. C. Balinger
Ralph H. Helm
John R. Pershing

Patent Dates:
Applied: Sep. 08, 1910
Granted: Aug. 15, 1911

Patent Pictures: [ 1 | 2 ]
William H. Duffey patent August 15, 1911
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
Screw adjustment for size, with cam action for the final grip. The opening is pretty much in line with the handle, which should facilitate gripping pipe in tight quarters and against walls and other flat surfaces.

Copyright © 2002-2017 - DATAMP