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.
Patent No.:
Date of Patent:
Jun. 28, 1994
Filed:
Sep. 09, 1992
Friedrich Stummer, Fellbach, DE;
Maschinenfabrik Mueller-Weingarten AG, Weingarten, DE;
Abstract
A computer implemented method of determining unacceptable deviations from process parameters associated with manufactured parts, for use with die-casting machines. The method includes entering in a data base empirically determined parameter values for the manufacture of good parts, constantly acquiring during a preproduction phase actual manufacturing parameter values as a set of parameters for each of a predetermined number of manufactured parts, testing the quality of the predetermined number of parts produced during the preproduction phase, classifying the acquired sets of parameters for each preproduction phase manufactured part as good or reject based on the testing, and storing the classified acquired sets of parameters for each preproduction phase manufactured part. Reject parts arising in a subsequent production phase are determined without quality inspection thereof by constantly acquiring during the production phase actual manufacturing parameter values as a set of parameters for each production phase manufactured part, and comparing acquired sets of parameters for each production phase manufactured part with the classified acquired sets of parameters for each preproduction phase manufactured part.