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:
Aug. 03, 1993
Filed:
Feb. 06, 1992
Jaromir Cizek, Port Elizabeth, ZA;
Nicolaas J van Rensburg, Port Elizabeth, ZA;
CSIR, Pretoria, ZA;
Abstract
Method and apparatus for making tubes from flexible textile sheets by which a sheet is helically wound around two or more non-rotatable support bars. Feed rollers contacting two or more helical convolutions wind the sheet so that adjacent helical convolutions overlap and also maintain the tube upstream of the feed rollers in tension to progress the tube axially along the support bars. As the sheet is wound into helical form, successive helical convolutions are sewn together to form a continuous tube.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile