Collet assembly and manufacturing process

Details Collet assembly and manufacturing process Collet assembly and manufacturing process

1998-06-25

2000-11-21

Pitts, Andrea L.

Chucks or sockets

Socket type

Spring biased jaws

279 43, 279 431, 279 461, 279 50, 279 51, 279 58, 279102, 279103, B23B 2904, B23B 2914, B23B 3120

Patent

active

061491659

ABSTRACT:
An Improved Collet Assembly and Manufacturing Process is disclosed. Also disclosed is an improved collet that includes a spindle, a center portion comprising several tabs and a collar. The disclosed collet is manufactured from a single piece of stock, and as such, the tabs are formed from this unitary piece. The disclosed collet is inserted into a collet housing that is further defined by a bore at its center. The preferred collet housing bore is further defined by a sloped portion that cooperates with the tabs formed on the collet to restrain a burr shaft from rotational or axial movement. The collet assembly of the present invention provides improved balance and therefore wear properties over previous collet assemblies. In particular, the disclosed collet assembly is well-suited for application inside a canister assembly of an air-powered dental tool handpiece.

REFERENCES:
patent: 2346706 (1944-04-01), Stoner
patent: 2363889 (1944-11-01), Martin
patent: 3035845 (1962-05-01), Benjamin
patent: 3599998 (1971-08-01), Kiwalle et al.
patent: 5947485 (1999-09-01), Nguyen

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