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:
Mar. 31, 1987
Filed:
Mar. 18, 1985
Applicant:
Inventor:
Aage Lang, Kolind, DK;
Assignee:
Clean-Tex A/S, Morke, DK;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26F / ;
U.S. Cl.
CPC ...
83 30 ; 83345 ; 83347 ; 83660 ;
Abstract
A machine and method to operate the machine to provide a plurality of valve-like perforations in the rubber-like backing of a nap mat or carpet by delivering the nap map or carpet to and under a spiked roll. The machine includes a back up roll with grooves therein which prevents grooving of the conveyor belt by the pins or spikes on the spiked roll.