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:
May. 14, 1991
Filed:
Dec. 04, 1989
Richard Brussel, Sulzfeld, DE;
Abstract
In order to ensure that the pressing force exerted during the production of molded objects acts exclusively on the molding compound (34), and is not absorbed by the lands (1a, 2a) the mold halves (1, 2), a distance determining apparatus employs a nozzle (3) bored into one of the lands. The mouth of the nozzle faces the land of the other mold half. The nozzle is connected by way of a hose (5) with a pressure source (9) for a compressible flow medium, such as compressed air. The hose serves as a reservoir for the flow medium. After attaining a starting state in which a predetermined overpressure is applied to the reservoir, the pressure source is switched off by a valve (7), and the time needed for the pressure in the reservoir to drop to a predetermined lower value is measured. This time period constitutes a measure of the distance (x) between the two lands (1a, 2a) of the mold halves.