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.

Date of Patent:
Apr. 28, 1992

Filed:

Feb. 28, 1991
Applicant:
Inventors:

Julius Peter, 3000 Hannover 71, DE;

Gunter Weckerle, Northeim, DE;

Assignees:

Continental Aktiengesellschaft, Hanover, DE;

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B / ; B29B / ;
U.S. Cl.
CPC ...
366 91 ; 264 28 ; 264349 ; 264 39 ; 425204 ; 425205 ; 425209 ; 4253823 ; 4253781 ; 366149 ; 523351 ;
Abstract

A method for producing a rubber mixture. In a first stage, in a ram kneader, a master batch is produced, and in a second stage, in a batch-type process, a final mixture is produced in a ram-less kneader, without the need for intermediate storage. To improve the cooling in the ram-less kneader, the interior of this kneader is supplied with air that has such a degree of dryness that a condensation deposit is precluded. To achieve this, an essentially air tight channel is provided between the two kneaders, with a place being provided in the channel for the bottom closure of the ram kneader in a swung-out position of this closure.


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