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:
Mar. 23, 1993
Filed:
Apr. 19, 1991
Balzers Aktiengesellschaft, Furstentum, LI;
Abstract
An arrangement for holding and cooling bearing shell blanks (2) positioned one next to the other during a coating process in a vacuum chamber, has cooling body and work piece holding pairs (3) which are detachable from each other and which are connected to one another via a cooling surface (9) and a heat transmission surface (7). A work piece holding part (5) of the cooling body and the work piece holding pair (3) is implemented so that the bearing shell blanks (2) are placed in a concave bearing surface (32) of the holding part during the coating process and are kept, over their entire surface, at a temperature determined by the cooling surface temperature. A temperature gradient can be formed if teflon foil strips are placed on the bearing surface. These allow only a direct heat contact of the apex of the bearing shell blanks (2) with the bearing surface. At the apex then, a deposition of fine particles with a high surface hardness, and at the margins a deposition of coarse particles with a correspondingly lesser surface hardness, take place. During the coating, the work piece holding parts (5) can already be loaded whereby the pass in the production of bearing shells (2) can be considerably shortened.