Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 6,591,719
Adjustable Pliers Wrench
Self-Locking, Adjustable Pliers Wrench
Daniel L. Poole - Phoenix, AZ
Robert N. Poole - Phoenix, AZ

USPTO Classifications:
81/370, 81/374

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Newell Rubbermaid, Inc. - Rockford, IL

C. H. Hanson Company - Naperville, IL


Patent Dates:
Applied: Jul. 19, 2001
Granted: Jul. 15, 2003

Patent Pictures: [ 1 | 2 | 3 ]
Daniel L. and Robert N. Poole patent July 15, 2003
USPTO pdf tiff
Google Patents
Report data errors or omissions
Lock Jaw Pliers web site (Aug. 2009)
Release lever on the swinging handle; gripping-tension adjusting screw in the intermediate link; base of intermediate link in the solid handle slides on a rod, against a compression spring. Arrangement intended to facilitate one-handed operation with no need to adjust for different size objects. The specifications describe alternate arrangements for some of the features.

In addition to: [Alfred Schulz and Lucile Schulz, Antique and unusual wrenches : Malcolm, NE, 1992], the specifications cite an extensive list of patents as relevant prior art, beginning with 936,980 and including:

HOSTETTER - 2,751,801, 3,116,656, RE26,280

MANSPEAKER - 2,5322,285

MEAD - 2,523,385, 2,543,922, 2,669,145

ROMMEL, et al. - 3,195,382

Copyright © 2002-2019 - DATAMP