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:
Oct. 27, 1992
Filed:
Dec. 19, 1991
Gary L Ingram, Ooltewah, TN (US);
Tapistron International, Inc., Ringgold, GA (US);
Abstract
Tufting apparatus for producing textile goods includes a plurality of hollow needles which are reciprocated vertically to penetrate a backing. Yarn is fed pneumatically through the needles and implanted into the backing, the backing being shifted transversely by an amount corresponding to the space between adjacent needles so as to implant a transverse row across the backing. A knife blade is associated with each needle and positioned on the opposite side of the backing from a presser foot. The knife blade engages a point forming flat angled surface of the needle, the angled surface being formed with an upwardly and inwardly extending slot which serves to capture and center yarn exiting the needle and provides a sharp edge which cooperates with the knife blade for cutting the yarn. The presser foot includes a conduit disposed for blowing air under pressure toward the needle penetration opening to blow the limb of yarn severed from the needle down into the backing so that not only is the backing prevented from lifting when the needle is withdrawn, but the air acts to prevent the backstitch from standing up above the backing by reducing excess yarn as a result of the slot in the needle.