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US 5,251,518 AGranted
Pipe wrench
OwnerYoung S. Wooinventor
Life of this patent
Estimating the term…
Abstract
A pipe wrench capable of turning pipes or rods in a convenient manner is disclosed. The wrench includes a handle portion and a pivotable portion, and these two portions are connected through a hinge portion. The pivotable portion pivotally closes and opens the mouth of the pipe wrench, and a pipe to be turned is secured to a rectangular corner of the pivotable portion, so that pipes and rods can be turned in a convenient manner.
Claims1
A pipe wrench, comprising:
- a handle including an upper portion having a plurality of teeth and a disc shaped plate having a central bore;
- a pivotable member including a surface having a plurality of teeth and a right-angled corner;
- a ratchet gear integrally formed on the pivotable member, the rachet gear including a central bore;
- means, disposed within the central bore of the rachet gear and the central bore of the handle, for joining the pivotable member to the upper portion of the handle so that the plurality of teeth on the pivotable member are opposed to the plurality of teeth on the upper portion of the handle;
- an engaging member having two ends, one end having an inclined surface which engages the rachet gear, and the second end including a handle;
- a housing supporting the engaging member on the upper portion of the handle;
- and
- a spring disposed within the housing, the spring urging the inclined surface of the engaging member into contact with the rachet gear.
5 more elements
Dependencies are inferred from the claim text.