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:
Apr. 10, 2001
Filed:
Jul. 15, 1999
Applicant:
Inventor:
John Phillip Rahn, West Hills, CA (US);
Assignee:
Litton Systems, Inc., Woodland Hills, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 ;
U.S. Cl.
CPC ...
G02B 6/02 ;
Abstract
A bifilar FOG coil winding method employs two identical parallel fibers, each one-half the length of the final FOG coil wound between first and second payout spools so that the respective midpoint of each fiber is located between the two spools. Both parallel fibers are then wound to form a FOG coil using Frigo's quadrupole or dipole winding technique. Prior to winding, one of the payout spools is rotated 180° (degrees) about its fiber pair.