Back to results
US 3,992,964 AGranted
Torquing or speeding lug wrench
OwnerM. Wayne Osmondinventor
Life of this patent
Estimating the term…
Abstract
A lug wrench having a gear housing with a fixed gear ratio with drive shafts protruding from either side fixedly connected to separate driving gears. The drive shafts have means on the outside ends whereby the handle and the wrench socket can be used interchangeably thereby providing a wrench with the torquing movement in one position and a speeding movement in the opposite position. The gear housing contains an extension rod at substantially right angles to the drive shafts adapted to brace against stationary surface preventing rotation of the gear box as the wrench handle is being turned.
Claims1
A wrench comprising
- a housing;
- a bracing rod fixed to and extending from said housing;
- a gear assembly in said housing, said gear assembly including
- a first gear mounted to rotate with respect to said housing,
- a second gear coaxially arranged with respect to said first gear and mounted to rotate within the said housing, said second gear being of different diameter than said first gear, and intermediate gears interconnecting said first and second gears whereby rotation of either of said first or second gears will rotate the other of said first or second gears at a different speed;
- a first drive shaft fixed to and rotatable with said first gear, said first drive shaft being mounted against axial movement and journaled through said housing, and having a magnetized socket on the end thereof projecting from the housing;
- a second drive shaft fixed to and rotatable with said second gear said second drive shaft being mounted against axial movement, journaled through the housing and having a magnetized socket on the end projecting from the housing, said first and second drive shafts being axially aligned and projecting oppositely to one another and each extending from the housing such that the housing is spaced from a vehicle tire when a wrench socket coupled to the magnetized socket of either drive shaft is in engagement with a wheel lug nut of the vehicle;
- a wrench socket including means adapted to be coupled to the magnetized socket of either drive shaft;
- and
- a handle having a gripping portion adapted to extend transversely to the first and second drive shafts and a coupling portion intermediate the length of said transversely extending portion whereby the handle is coupled to the magnetized socket of each drive shaft, the length of each part of the gripping portion extending from the coupling portion being shorter than the length of the bracing rod.
7 more elements
Dependencies are inferred from the claim text.