Back to results
US 7,435,042 B2Granted
Flexible and extendable drill bit assembly
OwnerChristopher L. White, Richard M. Davidianinventors
Life of this patent
Estimating the term…
Abstract
A flexible, extendable extension assembly used to create extended length holes and holes through inaccessible areas in walls and framing. The extension assembly including a flexible rod having first and second ends; and a holding means secured to the first end of the rod for releasably holding a tool bit for rotation with the rod.
Claims8
A quick-release head, comprising:
- (a) a body having a first bore and a second polygonal bore with an open end for receiving a tool bit having a mating shank;
- (b) a locking mechanism cooperating with the second bore and moveable between an unlocked position in which the locking mechanism allows the insertion or removal of a tool bit in the second bore and a locked position in which the locking mechanism prevents the insertion or removal of the tool bit in the second bore;
- and
- (c) a forward biased sleeve positioned around the body adjacent to the second bore having a reduced-diameter chamfer disposed in abutting contact with a shoulder portion of the body to retain the sleeve axially along the body, the chamfer created by deforming an end portion of the sleeve over the shoulder portion of the body, the sleeve being operably connected to the locking mechanism and adapted for movement axially along the body between the forward position where the locking mechanism is moved to the locked position and a rearward position where the locking mechanism is moved to the unlocked position.
1 more element
Dependencies are inferred from the claim text.