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. 17, 1992
Filed:
Apr. 17, 1991
Applicant:
Inventor:
Hubert Hergeth, 5100 Aachen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01G / ;
U.S. Cl.
CPC ...
19205 ;
Abstract
The fiber opening machine has an opening drum with adjacent trough, which receives fibers from a feeding device with feeding rollers. The fiber opening machine has a suction chamber for generating an air current to remove open fibers from the opening drum. The suction chamber is defined by the output side of the opening drum and an opposing suction chamber wall which is shaped to form a biconcave space through which a current of air is passed to remove the fibers from the opening drum so that fibers are removed from the drum without nep formation at rotational speeds which are higher than those attainable without the biconcave space.