The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 09, 2002

Filed:

Mar. 31, 2000
Applicant:
Inventors:

Franz Haas, Vienna, AT;

Johann Haas, Klosterneuburg, AT;

Gerhard Liebermann, Mannhartsbrunn, AT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D 5/00 ; B26D 7/00 ;
U.S. Cl.
CPC ...
B26D 5/00 ; B26D 7/00 ;
Abstract

An apparatus for cutting a wafer sandwich into a plurality of rectangular pieces has a support surface defining a transport path extending longitudinally through a longitudinal-cutting station and a transverse-cutting station. A plurality of stationary and transversely spaced longitudinal blades extend across the path in the longitudinal-cutting station. The surface is formed in the transverse-cutting station with a plurality of transversely extending and longitudinally spaced slots. An abutment is displaceable immediately downstream of the transverse-cutting station between a blocking position in the path and a retracted position clear of the path. A plurality of transverse blades are displaceable transversely in the slots of the transverse-cutting station across the path. A conveyor above the surface has pusher elements engageable with the wafer sandwich for pushing it longitudinally in a transport direction along the path through the longitudinal-cutting station, into the transverse-cutting station and against the abutment in the blocking position thereof, and out of the transverse-cutting station in the retracted position of the abutment.


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