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:
Nov. 17, 1992
Filed:
Mar. 05, 1992
Applicant:
Inventors:
Thomas Attinger, Stuttgart, DE;
Wolfgang Kleineberg, Calw, DE;
Assignee:
Mercedes-Benz AG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
16510432 ; 123 4154 ; 165917 ;
Abstract
A cooling water expansion tank having a level-fixing device which prevents cooling water from running out when the filling pipe is opened after driving operation and when filling the expansion tank. The level-fixing device has a positive pressure valve which is located in the vent conduit and is closed during filling. The filling pipe is provided with an overflow edge which is at least at the same height as the cooling water level at maximum expansion height.