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:
Oct. 03, 1978
Filed:
Oct. 20, 1976
Applicant:
Inventors:
Hans Gruner, Duisburg, DE;
Klaus Terjung, Duisburg, DE;
Wolfgang Sachse, Dusseldorf, DE;
Heinrich-Wilhelm Romerswinkel, Mulheim-Saarn, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
266275 ; 220318 ; 220326 ;
Abstract
A cover device suitable for casting vessels or the like is constructed to have an annular edge portion connected to the vessel by spring means. The cover has also a central portion corresponding to opening of the edge portion and a locking means is provided for locking the central portion with said edge portion.