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:
Jul. 27, 1976
Filed:
Jan. 19, 1970
Applicant:
Inventor:
Hans-Jurgen Block, Hamburg, DT;
Assignee:
Hauni-Werke Korber & Co., KG, Hamburg, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31F / ;
U.S. Cl.
CPC ...
156461 ; 93 / ; 156187 ; 156229 ; 156495 ; 156543 ; 425831 ;
Abstract
Apparatus for making filter plugs wherein the extent to which the tow is stretched or the rate of transport of a uniformly stretched tow to the wrapping mechanism is controlled by a testing unit which determines the resistance of filter plugs to axial flow of air therethrough. Alternatively, the speed of the garniture belt in the wrapping mechanism is regulated as a function of changes in resistance to flow of testing air transversely across successive increments of a uniformly stretched tow.