Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1996-11-15
1998-10-27
Michl, Paul R.
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
425 722, 4253822, B28B 500
Patent
active
058275827
ABSTRACT:
An object with a small orifice has a highly precise orifice diameter which is produced prior to the firing of the object. A ferrule having an orifice is placed inside of a bore in a casing, preferably a ceramic casing. The casing is then shrunk around the ferrule, preferably by sintering, with the cross-sectional areas of both the ferrule and its orifice remaining constant during the shrinking step. Consequently, the ferrule is securely fixed within the casing without any gaps between the two. In an alternative method, the ferrule is pre-shrunk and placed inside the bore, where it expands to fill the bore.
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Del Regno Gary E.
Quadir Tariq
Ceramic Engineering Corporation
CeramTec North America Innovative
Michl Paul R.
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