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:
Dec. 29, 1987
Filed:
Mar. 25, 1987
Jurgen Ploppa, Pfullingen, DE;
Franz Schmid, Bodelshausen, DE;
H. Stoll GmbH & Co., , DE;
Abstract
A control magnet assembly (10) for a pattern apparatus in knitting machines, for electrically controlled needle selection, has selection magnets (29, 30), which are provided with permanent magnetic retaining pole zones and with control pole zones with which control coils (42, 43; 52, 53) that are triggerable in accordance with the pattern are associated, and against which armature elements (26) operatively connected with the needles (18) can be brought. In a control magnet assembly (10) of this kind, optimal magnetic conditions in the control pole zone are to be provided such that a uniform and reliable throwing off of the appropriate armature elements (26) is always attained. To this end, a measuring head (15, 25) is provided for detecting the magnitude of the magnetic field in the control pole zone, and a circuit layout is provided between the measuring head (15, 25) and the control coil (42, 43, 52, 53).