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US 11,458,601 B2Granted
One-handed pipe wrench
AssigneeJS Products, Inc.
InventorChungeng Chen
Life of this patent
Estimating the term…
Abstract
A truly one-handed operable pipe wrench is provided which includes a handle having a first end and a second end, a fixed jaw disposed at the second end of the handle, and a rotatable jaw pivotally attached to the second end of the handle. The rotatable jaw includes a first engaging end and a second driven end. A lever arm is pivotally attached to the handle. The lever arm includes a handle portion and an actuating portion. When the lever arm rotates relative to the handle, the actuating portion is in contact with the second driven end of the rotatable jaw causing the rotatable jaw to rotate relative to the second end of the handle.
Claims18
A pipe wrench comprising:
- a handle comprising a first end and a second end, the second end comprising a first side extension and a second side extension forming a slot therebetween;
- a fixed jaw disposed at the second end of the handle, the fixed jaw comprising an attachment projection configured to be inserted into the slot between the first and second side extensions;
- a rotatable jaw pivotally attached to the second end of the handle between the first and second side extensions via a first pinned connection, the first pinned connection defining a first pivot point, the rotatable jaw comprising a first engaging end on a first side of the first pivot point and a second driven end on a second side of the first pivot point;
- a lever arm pivotally attached to the handle via a second pinned connection, the second pinned connection defining a second pivot point, the lever arm comprising a handle portion extending from the second pivot point toward the first end of the handle and an actuating portion extending through the slot of the handle and contacting an external surface of the second driven end of the rotatable jaw;
- and
- a spring configured to bias the rotatable jaw towards the fixed jaw and into a closed position, wherein the spring is a torsion spring.
3 more elements
A pipe wrench comprising:
- a handle comprising a first end and a second end, the second end comprising a first side extension and a second side extension forming a slot therebetween;
- a fixed jaw disposed at the second end of the handle, the fixed jaw comprising an attachment projection configured to be inserted into the slot between the first and second side extensions;
- a rotatable jaw pivotally attached to the second end of the handle between the first and second side extensions via a first pinned connection, the first pinned connection defining a first pivot point, the rotatable jaw comprising a first engaging end on a first side of the first pivot point and a second driven end on a second side of the first pivot point;
- and
- a lever arm pivotally attached to the handle via a second pinned connection, the second pinned connection defining a second pivot point, the lever arm comprising a handle portion extending from the second pivot point toward the first end of the handle and an actuating portion extending through the slot of the handle and contacting an external surface of the second driven end of the rotatable jaw, and
- a torsion spring disposed at the second end of the handle, the torsion spring having a first arm connected to the attachment projection of the fixed jaw, the first arm abutting against a straight portion of a raised profile disposed on an inside surface of each of the first and second side extensions, and the torsion spring having a second arm that interfaces with an internal surface of the second driven end of the rotatable jaw, wherein the torsion spring biases the second driven end of the rotatable jaw to move the rotatable jaw about the first pivot point such that the first engaging end of the rotatable jaw moves towards the fixed jaw.
3 more elements
A pipe wrench comprising:
- a handle comprising a first end and a second end;
- a fixed jaw disposed at the second end of the handle;
- a rotatable jaw pivotally attached to the second end of the handle, rotatable jaw comprising a first engaging end and a second driven end;
- a lever arm pivotally attached to and extending through the handle, the lever arm comprising a handle portion and an actuating portion wherein when the lever arm rotates relative to the handle, the actuating portion is in contact with the second driven end of the rotatable jaw causing the rotatable jaw to rotate relative to the second end of the handle;
- and
- a spring configured to bias the rotatable jaw towards the fixed jaw and into a closed position, wherein the spring is a torsion spring.
3 more elements
Dependencies are inferred from the claim text.