Dust guard cap for a hand-held drilling device

Details Dust guard cap for a hand-held drilling device Dust guard cap for a hand-held drilling device

1985-05-21

1987-05-12

Bilinsky, Z. R.

Chucks or sockets

With fluid-pressure actuator

Socket type

408 67, 408241G, 409134, 277212FB, B23B 3102

Patent

active

046643940

ABSTRACT:
A dust guard cap for the tool holder in a hand-held drilling device is formed of a casing secured on the tool holder and a cover member mounted on and extending across one end of the casing. The cover member forms an opening through which a tool can be inserted into the tool holder. Attached to the cover member and extending inwardly from the through opening is a resilient sleeve-like torus which forms a seal around the tool. An outwardly projecting bead is formed on the inner end of the torus and bears against the casing.

REFERENCES:
patent: 3817648 (1974-06-01), Miller
patent: 3881838 (1975-05-01), Derbyshire
patent: 3984192 (1976-10-01), Wanner et al.

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