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:
Jun. 08, 1993
Filed:
Sep. 12, 1989
Applicant:
Inventors:
Sven Heyland, Weiningen, CH;
Karl Rolli, Winterthur, CH;
David Roschli, Pfungen, CH;
Jaak J Sihver, Gutenswil, CH;
Assignee:
Nestec S.A., Vevey, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47J / ;
U.S. Cl.
CPC ...
99348 ; 99353 ; 99355 ; 99472 ; 99483 ; 4251311 ; 425205 ; 425209 ; 4253781 ;
Abstract
An apparatus for mixing, plasticizing, reacting and extruding ingredients combines a mixing unit for mixing powder-form ingredients and liquid ingredients into a paste-like mixture, a kneading and heating unit for plasticizing the mixture, a heating tube for reacting the plasticized mixture, and an extrusion die opening into a chamber which is maintained under reduced pressure by a pump. Pressure for propelling the plasticized mixture may be provided by a positive pump or by closely spaced flights of a screw extruder positioned before the heating tube.