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. 02, 1993
Filed:
Jul. 29, 1991
David Pernick, Glendale, NY (US);
Monarch Knitting Machinery Corporation, Glendale, NY (US);
Abstract
A circular knitting machine with needles having operating butts of predetermined height includes a stitch cam unit for raising and lowering the needles by engaging the operating butts. The cam system includes a support body and a needle raising cam block having upper and lower cam members fixed to the support body and having corresponding upwardly inclined lower and upper butt engaging surfaces which are spaced from each other a distance substantially corresponding to the dimensions of the predetermined height of the needle butts. The upper cam member also includes a downwardly inclined lower butt engaging surface extending from the top portion of the upwardly inclined lower butt engaging surface for engagement with the needle butts. A stitch cam member has a downwardly inclined lower butt engaging surface cooperating with the downwardly inclined lower butt engaging surface of the needle raising cam. A lower landing cam member has an upper butt engaging surface spaced from the lower butt engaging surface a distance substantially corresponding to the dimensions of the predetermined height of the needle butts to define a closed track herebetween. The stitch cam member and lower landing cam member are movable along an inclined angle relative to the upper and lower cam members for obliquely moving together the upper stitch cam member and the lower landing cam member to the change the stitch forming level of the needles. The cooperating surfaces of the lower butt engaging surface ensure that the upper and lower butt engaging surfaces forming the downwardly inclined closed track remain substantially parallel when the stitch forming level is changed.