Remote drill bit loader

Patent · Wed Jan 01 04:00:00 EST 1997

OSTI ID:871290

Dokos, James A ^[1]

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1. Idaho Falls, ID

A drill bit loader for loading a tapered shank of a drill bit into a similarly tapered recess in the end of a drill spindle. The spindle has a transverse slot at the inner end of the recess. The end of the tapered shank of the drill bit has a transverse tang adapted to engage in the slot so that the drill bit will be rotated by the spindle. The loader is in the form of a cylinder adapted to receive the drill bit with the shank projecting out of the outer end of the cylinder. Retainer pins prevent rotation of the drill bit in the cylinder. The spindle is lowered to extend the shank of the drill bit into the recess in the spindle and the spindle is rotated to align the slot in the spindle with the tang on the shank. A spring unit in the cylinder is compressed by the drill bit during its entry into the recess of the spindle and resiliently drives the tang into the slot in the spindle when the tang and slot are aligned.

• Research Organization: WESTINGHOUSE ELECTRIC CORP
• DOE Contract Number: AC11-93PN38195
• Assignee: United States Department of Energy (Washington, DC)
• Patent Number(s): US 5702335
• OSTI ID: 871290
• Country of Publication: United States
• Language: English

Related Subjects

/483/
adapted
align
aligned
bit
bit loader
compressed
cylinder
drill
drill bit
drives
engage
entry
extend
form
inner
loader
loading
lowered
outer
pins
prevent
projecting
receive
recess
remote
resiliently
retainer
rotated
rotation
shank
similarly
slot
spindle
spring
tang
tapered
tapered shank
transverse
unit