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Title: Metal-to-ceramic attachment device

Abstract

A metal-to-ceramic fastening device is disclosed for securing a metal member to a ceramic member with respective confronting surfaces thereon clamped together, comprising a threaded bolt adapted to extend through a bolt hole in the metal member and into an aligned opening in the ceramic member, a rod nut threadedly receiving the bolt and adapted to span the opening in the ceramic member, and a pressure limiting member received on the bolt between the nut and the confronting surface of the metal member for limiting the movement of the nut toward the metal member when the bolt is tightened, so as to limit the pressure applied by the nut to the ceramic member to avoid damage thereto. The fastening device also prevents damage to the ceramic member due to thermal stresses. The pressure limiting member may have a shallow dish-shaped depression facing the rod nut to assist in accommodating thermal stresses.

Inventors:
 [1];  [1];  [1]
  1. Bartlesville, OK
Issue Date:
Research Org.:
BETC
OSTI Identifier:
865584
Patent Number(s):
4540304
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
metal-to-ceramic; attachment; device; fastening; disclosed; securing; metal; ceramic; respective; confronting; surfaces; thereon; clamped; comprising; threaded; bolt; adapted; extend; aligned; rod; nut; threadedly; receiving; span; pressure; limiting; received; surface; movement; tightened; limit; applied; avoid; damage; thereto; prevents; due; thermal; stresses; shallow; dish-shaped; depression; facing; assist; accommodating; avoid damage; attachment device; thermal stress; pressure applied; thermal stresses; threaded bolt; fastening device; confronting surfaces; /403/

Citation Formats

Pavelka, Edwin A, Grindstaff, Quirinus G, and Scheppele, Stuart E. Metal-to-ceramic attachment device. United States: N. p., 1985. Web.
Pavelka, Edwin A, Grindstaff, Quirinus G, & Scheppele, Stuart E. Metal-to-ceramic attachment device. United States.
Pavelka, Edwin A, Grindstaff, Quirinus G, and Scheppele, Stuart E. Tue . "Metal-to-ceramic attachment device". United States. https://www.osti.gov/servlets/purl/865584.
@article{osti_865584,
title = {Metal-to-ceramic attachment device},
author = {Pavelka, Edwin A and Grindstaff, Quirinus G and Scheppele, Stuart E},
abstractNote = {A metal-to-ceramic fastening device is disclosed for securing a metal member to a ceramic member with respective confronting surfaces thereon clamped together, comprising a threaded bolt adapted to extend through a bolt hole in the metal member and into an aligned opening in the ceramic member, a rod nut threadedly receiving the bolt and adapted to span the opening in the ceramic member, and a pressure limiting member received on the bolt between the nut and the confronting surface of the metal member for limiting the movement of the nut toward the metal member when the bolt is tightened, so as to limit the pressure applied by the nut to the ceramic member to avoid damage thereto. The fastening device also prevents damage to the ceramic member due to thermal stresses. The pressure limiting member may have a shallow dish-shaped depression facing the rod nut to assist in accommodating thermal stresses.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

Patent:

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