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. 12, 1990
Filed:
Jul. 06, 1989
Kunio Etuya, Amagasaki, JP;
Naofumi Kobayashi, Amagasaki, JP;
Takeshi Yoshikawa, Sanda, JP;
Noboru Ishibashi, Amagasaki, JP;
Kanai Juyo Kogyo Company Limited, Hyogo, JP;
Abstract
Disclosed is a rotary ring for spinning machinery, such as ring spinning machines and ring twisting macines, which provides stabilized rotation of a ring-shaped rotator and involves no end breakage of yarn during spinning. This is accomplished by specifying the coefficient of friction .mu. between the ring-shaped rotator and the ring-shaped supporter, the relation between the weight W of the ring-shaped rotator and the outside diameter D.sub.1 and ring-shaped top flange inside diameter D.sub.2, and the relation between the width A along the radial direction and the height H along the axial directio between the sliding surfaces of the ring-shaped rotator and the ring-shaped supporter. This rotary ring makes it possible to realize higher spindle speed and higher productivity of yarn.