Tools – Wrench – screwdriver – or driver therefor – Plural pivoted jaws and handle-lever
Patent
1976-12-08
1978-07-04
Simpson, Othell M.
Tools
Wrench, screwdriver, or driver therefor
Plural pivoted jaws and handle-lever
279 1K, B23B 3106
Patent
active
040981525
ABSTRACT:
A chuck key has a key shaft with an key head having four lateral engagement surfaces. A series of bevels are formed in the axial edges of the engagement surfaces adjacent the juncture of the key head and shaft and also each engagement surface continues into a tapered polyhedron surface defining the tip of the key head, so that the key will be thrown out of a chuck if the chuck begins to rotate.
REFERENCES:
patent: 1428566 (1922-09-01), Timmerman
Bilinsky Z. R.
Simpson Othell M.
LandOfFree
Chuck key does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chuck key, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chuck key will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-272334