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:
Feb. 10, 2009
Filed:
Jul. 26, 2005
Amotz Weinberg, Tel Aviv, IL;
Yair Eilam, Tel Mond 40600, IL;
Amotz Weinberg, Tel Aviv, IL;
Yair Eilam, Tel Mond 40600, IL;
Shenkar College of Engineering and Design, Ramat Gan, IL;
Other;
Abstract
The invention relates to the joining of fabrics made of advanced fibers for making pre-forms for composite materials. The invention provides a sewing machine needle which can be used to join fabrics by stitching with a brittle thread. The needle, according to the invention, for stitching a brittle fiber thread through at least one layer of fibrous fabric, being characterized by the head (point) thereof having an (open eye) slit proximate to the needle point for receipt and release of the brittle thread, the slit of the needle having an arc shape with a radius of curvature of not less than 1 mm, to prevent sharp bending of the brittle thread when the thread is in contact with the slit.