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. 07, 1992
Filed:
Aug. 30, 1990
Applicant:
Inventor:
Werner Strudel, Friedrichshafen, DE;
Assignee:
Lindauer Dornier Gesellschaft m.b.H., Lindau, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06C / ;
U.S. Cl.
CPC ...
26 80 ;
Abstract
Tubular fabric that is being expanded radially outwardly by a so-called circular expander, has a tendency to develop a reduced pressure inside the volume of the tubular fabric, whereby the operation of the expander is hindered. To avoid the formation of reduced pressure, the expander is equipped with at least one air blower nozzle for introducing pressurized air into the space enclosed by the tubular fabric. The air blower nozzle is movable toward and away from the tubular fabric and preferably can stretch the fabric slightly to improve the passage of air through the fabric, which is sufficient permeable to pressurized air.