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:
Dec. 05, 1989
Filed:
Jun. 22, 1988
John J Stamp, Simpsonville, SC (US);
Abstract
A fibre opening device for use in apparatus for spinning fibres into yarns comprising a housing in which an opening roller is rotatably mounted, the housing having a trash separation zone and a fibre stripping zone and the roller having a cylindrical working surface from which combing elements project and being substantially hollow with holes extending through the wall defining the cylindrical working surface to permit a flow of air therethrough, wherein cleaning means are provided for the interior of the roller, the cleaning means consisting of a vacuum suction device and a compressed air jet device which remove trash, dust and short fibres from the interior of the roller. It is preferred that the air jet device is in front of the suction device relative to the rotation of the roller and on the side of the roller remote from where combing of fibres occurs.