Adjustable pipe wrench, gear actuated, having two methods of...

Details Adjustable pipe wrench, gear actuated, having two methods of... Adjustable pipe wrench, gear actuated, having two methods of...

2000-08-29

2001-05-01

Smith, James G. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

C081S164000, C081S169000

Reexamination Certificate

active

06223632

ABSTRACT:

BACKGROUND
1. Field of Invention
This invention relates to a pipe wrench which can be adjusted from a rotatable handle and can be adjusted in the conventional way by turning the exposed gear.
2. Description of Prior Art
Typical wrenches comprise a tubular handle that is threadedly engaged with the outside thread of the movable jaw portion. This restricts the free play of the movable jaw portion and decreases the effectiveness of the wrench. Maintaining the standard characteristics of a pipe wrench with the addition of a rotatable handle is not achieved.
SUMMARY OF THE INVENTION
The objective of this wrench is to provide a wrench having a rotatable handle for easy adjustment. The exposed internally threaded gear allows adjustment in the conventional manner of a standard pipe wrench.


REFERENCES:
patent: 564513 (1896-07-01), Friede
patent: 1012036 (1911-12-01), Vinton
patent: 1030232 (1912-06-01), Cole
patent: 1465470 (1923-08-01), Gloor
patent: 1475755 (1923-11-01), Dies
patent: 1591823 (1926-07-01), Henslee
patent: 1727623 (1929-09-01), Thewes
patent: 1929258 (1933-10-01), Petersen et al.
patent: 1966773 (1934-07-01), Tilston
patent: 3015246 (1962-01-01), Buyer
patent: 3046821 (1962-07-01), Iegris
patent: 3093019 (1963-06-01), Bohnet

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