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:
May. 05, 1992
Filed:
Dec. 04, 1989
Milo M Vaniglia, Southgate, KY (US);
Cincinnati Milacron Inc., Cincinnati, OH (US);
Abstract
A fiber placement head for a fiber placement machine of the type in which a number of individual resin-impregnated fiber tows or 'towpregs' are fed at independent rates from a creel assembly for application as a fiber band onto the surface of a mandrel includes cooling chutes for each fiber tow which reduces their temperature to reduce the tack of the tows. A cut, clamp and restart mechanism is provided wherein the cutting and clamping operations are performed by a unitary knife blade and clamping block, and the restart or rethreading of cut tows is obtained by the engagement of a pinch roller with a continuously rotating rethread shaft which are operative independently of the movement of the fiber placement head relative to the mandrel. The tows are pressed or compacted onto the mandrel by a compaction shoe, and feed and rewind rollers are provided to interpose a protective film between the compaction shoe and fiber band to avoid damage to the tows.