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:
Jan. 26, 1999
Filed:
Dec. 05, 1996
Applicant:
Inventors:
Klaus-Jurgen Pohl, Reinbek, DE;
Alfred Drenguis, Hamburg, DE;
Assignee:
Hauni Maschinenbau AG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24C / ;
U.S. Cl.
CPC ...
131 68 ; 131 69 ; 131 841 ; 219260 ; 219270 ;
Abstract
A sealer for the adhesive-containing seam of a tubular wrapper surrounding a running filler of tobacco or filter material for tobacco smoke has an at least partially ceramic heating device which contacts the moving seam and contains an electric conductor of ceramic material. The temperature of the heating device can be regulated to decrease, either stepwise or gradually, in the direction of movement of the seam. The heating device can consist of or contain silicon nitride and can be doped with titanium nitride to enhance its heat conductivity.