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US 9,089,901 B2Granted
Flexible and extendible 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, solid core 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.
Claims17
An extension assembly configured to permit a user to drill a hole through inaccessible areas in a wall, comprising:
- (a) a flexible, solid core rod having first and second ends, the rod being configured to extend through a hole in a wall cavity and flex therein to position a tool bit at an inaccessible location in the wall cavity and permit a user to drill a hole through a substrate at the inaccessible location;
- and
- (b) a holding means secured to the second end of the rod for releasably holding a tool bit for rotation with the rod, the holding means including a sleeve adapted to slide axially along a body of the holding means between a secured position where a tool bit is securely held within the holding means and a release position where the tool bit is released from the holding means, wherein the sleeve includes a reduced-diameter chamfer disposed in abutting contact with a shoulder portion of the body, the chamfer created by deforming an end portion of the sleeve over the shoulder portion of the body to retain the sleeve axially along the body.
A drill bit assembly configured to permit a user to drill a hole through inaccessible substrates in a wall, consisting essentially of:
- (a) a flexible, solid core rod having first and second ends;
- and
- (b) a quick-release head secured to the second end of the rod for receiving and securing a drill bit therein, the head including a sleeve adapted to slide axially along a body of the head between a secured position where a drill bit is securely held within the head and a release position where the drill bit is released from the head, wherein the sleeve includes a reduced-diameter chamfer disposed in abutting contact with a shoulder portion of the body, the chamfer created by deforming an end portion of the sleeve over the shoulder portion of the body to retain the sleeve axially along the body.
Dependencies are inferred from the claim text.