Patent ID: 8172488

Claim:
A drill guide assembly for providing a bore in a tire comprising: a first slide rail for lying on the tire when the tire lies on a side; a second slide rail for lying on the tire when the tire lies on a side, the second slide rail being disposed parallel to the first slide rail; a first engagement block slidingly secured to the first slide rail and the second slide rail, the first engagement block engaging a first shoulder portion of a tread portion of the tire; a second engagement block slidingly secured to the first slide rail and the second slide rail, the second engagement block engaging a second shoulder portion of the tread portion of the tire, the second shoulder portion being diametrically opposed to the first shoulder portion; and a drill mount for positioning a drill relative to the tire, the drill mount including a toroidal base, a first upright guide member secured to the toroidal base, a second upright guide member secured to the toroidal base, and a slide member for slidingly engaging the first and second guide members, the slide member having two outer cylindrical tubes for sliding along the first and second guide members and a central cylindrical tube for slidingly engaging a drill, the slide member of the drill mount being slidingly secured to the slide rails by bolts and corresponding threaded slide caps.