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. 06, 1990
Filed:
Oct. 06, 1988
Raymond G Buchko, Appleton, WI (US);
John A Halgren, Neenah, WI (US);
Curwood, Inc., Appleton, WI (US);
Abstract
A continuous motion packaging machine which forms packages from overlying webs advanced along a path at a constant speed. A tooling carriage traverses a repetitive path which includes an 'on-line' increment during which the tooling carriage matches web movement and package operations are performed. The tooling carriage is driven by linkage including a power input shaft operated at varying speeds throughout each cycle to maintain carriage position relative to the webs. Two brushless servo motors are used. One drives the webs, the other drives the tooling carriage. A computer program compares relative motor positions at points throughout each cycle to a pre-established position pattern and adjusts motor controller output to maintain one motor position relative to the sensed position of the other motor.