US 5,670,187 AGranted

Apparatus for in situ green sheet slitting

AssigneeInternational Business Machines Corporation

InventorsLorenzo Scalia, Barry Donald Sewing

Life of this patent

Estimating the term…

Abstract

The present invention relates generally to a new apparatus and method for in-situ green sheet slitting. More particularly, the invention encompasses an apparatus and method that uses a modified green sheet slitting machine so that it can provide an in-situ slitting of green sheets that result in a plurality of separate green sheets rolls or strips.

Claims18

Dependent claims

An apparatus for slitting ceramic green sheets comprising,

(a) a slitting mechanism having at least one slitting wheel,
(b) moving means for bringing at least one layer of ceramic green sheet underneath said at least one slitting wheel, wherein at least a portion of said at least one layer of ceramic green sheet is slit by said at least one slitting wheel,
(c) wherein said apparatus has at least one back-up roller which provides a counter-pressure to said at least one layer of said ceramic green sheet when said at least one layer of said ceramic green sheet is slit by said at least one slitting wheel, and
(d) wherein said slitting mechanism is inside an oven and secured thereto.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 08/636,253Filed 23 Apr 1996 · continuation
Priority: 29 Aug 1994
Granted: 23 Sep 1997
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

B28B 5/027
The shaped articles being of indefinite length: the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
B28B 5/028
The shaped articles being of indefinite length: the moulding surfaces being of definite length, e.g. succession of moving pallets, and being…
B28B 11/0863
For reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads: for profiling, e.g. making grooves
B28B 11/12
Apparatus or processes for treating or working the shaped or preshaped articles: for removing parts of the articles by cutting

Family

Serial298,480Parent of this division · filed 29 Aug 1994
Serial462,349Parent of this continuation · filed 5 Jun 1995
US 5,533,889 AParent of this continuation · filed 9 Jul 1996
US 5,670,187 AThis patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

Facts

Application

08/636,253Filed 23 Apr 1996 · continuation

Priority

29 Aug 1994

Granted

23 Sep 1997

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

B28B 5/027
The shaped articles being of indefinite length: the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
B28B 5/028
The shaped articles being of indefinite length: the moulding surfaces being of definite length, e.g. succession of moving pallets, and being…
B28B 11/0863
For reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads: for profiling, e.g. making grooves
B28B 11/12
Apparatus or processes for treating or working the shaped or preshaped articles: for removing parts of the articles by cutting