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. 20, 1995
Filed:
Jul. 14, 1994
Ettore Lonati, Brescia, IT;
S.F.I.M. S.r.l., Brescia, IT;
Abstract
The needle selection device has multiple selectors arranged in axial grooves formed in the skirt of the needle cylinder, each selector arranged below a needle and oscillatable in a radial plane of the needle cylinder from an active position, in which a butt protrudes radially from its groove, for the engagement of the butt with cams for actuating the selectors arranged around the needle cylinder to move the selectors along their groove in the needle cylinder so as to activate the overlying needle, to an inactive position, in which the selector is positioned in its groove in the needle cylinder so that it does not interfere with the selector actuation cams. The device has selector extraction elements to transfer the selectors from the inactive position to the active position and selection elements to transfer the selectors from the active position to the inactive position or to keep them in the active position. Each selector is provided with a selection element protruding radially from the grooves of the needle cylinder and oscillatable in the plane of arrangement of its selector. The selection element is made of a material that can be magnetized, and an electromagnet is provided for magnetizing the selection element and magnetic elements interact with the selection element after magnetization to make it oscillate into an idle position, in which the selection element engages a selector sinker cam laterally facing the needle cylinder, or into an active position, in which the selection element does not interfere with the sinker cam.