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:
Nov. 16, 1999
Filed:
Sep. 04, 1998
Ferdinand Leifeld, Kempen, DE;
Trutzschler GmbH & Co. KG, Monchengladbach, DE;
Abstract
A fiber processing machine includes a sliver guiding device having first and second wall elements as well as first, second, third and fourth wall faces. The first and second wall faces which form part of the first and second wall elements, respectively, are oriented toward and spaced from one another to define a first gap. The third and fourth wall faces are oriented toward and spaced from one another to define a second gap. Some of the wall faces are convergent for densifying a sliver running through the first and second gaps. At least one of the first and second wall elements is stationary during operation. First and second cooperating withdrawing rolls immediately adjoin the first gap for pulling the sliver therethrough upon their rotation. The first and second withdrawing rolls define a bight into which the first and second wall faces extend. The first and second withdrawing rolls have respective first and second circumferential roll surface portions forming the bight. The first and second circumferential roll surface portions constitute, respectively, the third and fourth wall faces of the sliver guiding device.