# US 8,539,864 B1 · Dual-handled drive wrench

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- Number: US 8,539,864 B1
- Document ID: US8539864B1
- Status: Granted
- Kind: B1
- Application number: 13/206,625
- Filed: 2011-08-10
- Granted: 2013-09-24
- Earliest claimed: 2010-08-25
- Applicants: Justin A. Kennedy
- Inventors: Justin A. Kennedy
- Web page: https://patentgrep.com/patent/US8539864B1

## CPC

- B25B 13/461: {with concentric driving and driven member}
- B25B 23/0028: {Angular adjustment means between tool head and handle}
- B25G 1/005: {for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque}
- B25G 1/063: {for screwdrivers, wrenches or spanners}
- B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B)

## Abstract

A dual-handled ratcheting socket wrench having a drive head and a pair of handles pivotably attached at opposite ends of the drive head, and a manually-withdrawable, quick-release pin extending through each handle and the drive head to form a hinge. The quick-release pin can be withdrawn manually from the aligned holes without the use of a hand tool. The dual-handled ratcheting socket wrench can have a locking mechanism for independently securing the handles at a variable pivot position relative to the drive head. The dual-handled socket wrench allows a mechanic to apply substantially equal, co-rotational force to each handle.

## Claims

### Claim 1

A dual-handled drive wrench, comprising:
a) a drive head including a drive post extending along a drive axis, and opposed first and second shanks extending radially from the drive axis, the first and second shanks each having a hole through the shank along a handle pivot axis;
b) a first handle and a second handle, each including a clevis at a proximal end having aligned holes through the legs of the clevis, the holes of the legs of the clevis aligned with the hole of the shank to provide a hinge that pivots around the handle pivot axis; and
c) a manually-withdrawable, quick-release pin extending through the aligned holes of the clevis legs and shank, which can be withdrawn manually from the aligned holes without the use of a hand tool.

### Claim 2 (depends on 1)

The dual-handled drive wrench of claim 1, wherein the drive head includes a ratcheting mechanism for the drive post, and a drive-direction selection switch.

### Claim 3 (depends on 1)

The dual-handled drive wrench of claim 1, wherein the quick-release pin includes a spring-loaded ball detent mechanism at a distal end, and a grasping means at the proximal end for withdrawing the quick-release pin from the aligned holes of the clevis legs and shank by an axially applied pulling force.

### Claim 4 (depends on 1)

The dual-handled drive wrench of claim 1, wherein the grasping means is a ring through the proximal end, which has an opening through which a finger can be inserted.

### Claim 5 (depends on 4)

The dual-handled drive wrench of claim 4, wherein the drive head includes a ratcheting mechanism for the drive post, and a drive-direction selection switch.

### Claim 6 (depends on 1)

The dual-handled drive wrench of claim 1, further including a locking mechanism for independently securing at least one of the first handle and the second handle at a variable pivot position relative to the respective shank of the drive head.

### Claim 7 (depends on 6)

The dual-handled drive wrench of claim 6, wherein the drive head includes a ratcheting mechanism for the drive post, and a drive-direction selection switch.

### Claim 8 (depends on 6)

The dual-handled drive wrench of claim 6, wherein the shank includes a part-cylindrical surface with head teeth thereon, and a rod having rod teeth and disposed within and moveable axially within a bore of the handle between an engaged position wherein the rod teeth engage the head teeth for locking the handle in a selected pivot position relative to the drive head, and a non-engaged position wherein the rod teeth are disengaged from the head teeth to allow relative pivoting movement of the handle around the handle pivot axis.

### Claim 9 (depends on 8)

The dual-handled drive wrench of claim 8, wherein the drive head includes a ratcheting mechanism for the drive post, and a drive-direction selection switch.