Bolt and plasma processing apparatus provided with same

Details Bolt and plasma processing apparatus provided with same Bolt and plasma processing apparatus provided with same

2011-03-08

2011-03-08

Gramaglia, Maureen (Department: 1716)

Coating apparatus

Gas or vapor deposition

C118S7230ER, C156S345430

Reexamination Certificate

active

07901510

ABSTRACT:
A bolt which is driven into a female screw portion disposed in a brittle member in a wear environment includes a head formed of a wear resistant material, a body which is formed of a resin having elasticity or plasticity and has a first male screw portion, and a placed member disposed between the head and the body and formed of a wear resistant resin having elasticity or plasticity. The body further includes a second male screw portion disposed along a central axis of the body and the head includes a female screw portion which the second male screw portion is driven into. The placed member is of a plate shape and has a through hole in its central portion, and a diameter of the through hole is smaller than or equal to a nominal diameter of the first male screw portion and larger than or equal to a nominal diameter of the second male screw portion.

REFERENCES:
patent: 5332443 (1994-07-01), Chew et al.
patent: 6008130 (1999-12-01), Henderson et al.
patent: 2003/0196755 (2003-10-01), Antolik
patent: 2579389 (1998-06-01), None

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