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:
Jun. 23, 1987
Filed:
Jun. 15, 1984
Luciano Luchi, Tavernuzze Impruneta, IT;
Officine Savio SpA, Pordenone, IT;
Abstract
A process for operating and controlling compound needles that have reciprocal travel of the needle and slider restricted by abutment surfaces where the needle is lifted high enough to engage yarn but less than the travel of the needle and slider and the descent of the needle. Before the needle descends, the needle is lifted selectively to bring the upper end of the slider above the plane of knock-over of the sinkers through the action of abutment between the needle and slider. Needle descent takes place along at least two successive slopes in a track with different descent inclinations, the second slope being the steeper. Slider recall by the needle begins before the needle is brought down again by the second slope. Improved stitch-forming cams to permit compound needles to operate in accordance with the foregoing process are disclosed also.