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:
May. 05, 1992
Filed:
Mar. 14, 1991
Donald G Cawelti, Tucson, AZ (US);
Bryan F Berlin, Tucson, AZ (US);
John T Kenna, Thousand Oaks, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A laser beam (12) scans a filament (8) being wound onto a bobbin (42) sensing the winding angle of attack .beta. and on determining a variance of the angle from a predetermined desired angle generating a signal in a filament position monitor and control (38) for energizing a bobbin carriage drive (40) to correct the winding angle .beta.. Additionally, the laser beam (12) can scan filament (18) before it becomes the last winding on the bobbin (42) and on a climb-back or gap occurring the filament position monitor and control (38) reverses the spindle drive (41) to remove the climb-back or gap and then reassumes normal carriage drive (40) and spindle drive (41).