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. 29, 1982
Filed:
Mar. 24, 1980
Applicant:
Inventors:
Max Hartmannsgruber, Kirchheim, DE;
Horst Wolf, Albershausen, DE;
Assignee:
Zinser Textilmaschinen GmbH, Ebersbach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01H / ; D01H / ; D01H / ;
U.S. Cl.
CPC ...
57 93 ; 57 94 ; 57 95 ; 57100 ;
Abstract
An assembly of motors designed to drive a ring rail, a bank of spindles and a plurality of draw or delivery rollers in a ring spinning or twisting machine is supplied with three-phase current of a frequency determined by the settings of digitally adjustable frequency selectors independently controlling respective solid state frequency-inverters assigned to the several motors or groups of motors. The selectors include frequency dividers in the output of a common and preferably also adjustable source of timing signals which may be a free-running oscillator or a pulse generator driven by one of the motors acting as a master.