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:
May. 06, 1980
Filed:
Nov. 02, 1978
Applicant:
Inventors:
Eberhard Kamfe, Wiehl, DE;
Willi Schmidt, Numbrecht-Elsenroth, DE;
Assignee:
Firma Erwin Kampf GmbH & Co. Machinenfabrik, Muhlen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; D06C / ;
U.S. Cl.
CPC ...
26 73 ; 2642902 ;
Abstract
A biaxial web stretching machine has diverging tong conveying screws and the screws are provided with double or triple threads to provide relatively high speed tong movement with a relatively low speed of screw rotation.