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:
Jul. 19, 1977
Filed:
Jan. 07, 1976
John Lorenz Evans, Oakland, NJ (US);
Bart Joseph Zoltan, Old Tappan, NJ (US);
The Singer Company, Little Falls, NJ (US);
Abstract
A torquer system for a gyro device that has a spherically shaped rotor divided into upper and lower hemispheres. The rotor of the gyro is mounted on a gas bearing over a spherically shaped stator and supports an optical assembly positioned parallel to the spin axis of the gyro. The torquer is positioned on the base of the gyro beneath the lower hemisphere of the rotor so as to permit the maximum angular freedom of the rotor and optical assembly. The torquer comprises four pole pieces separated 90.degree. from each other. Each torquer has two pole faces and coils located between pole faces. The coils contain separate windings for bias and control of the torquer. A current flow through the windings of the torquers causes magnetic flux lines emanating from the pole faces to pass through magnetically permeable material affixed to the lower hemisphere of the gyro rotor closing the magnetic circuit. The rotor will be attracted towards the pole face and the magnitude of the force of attraction is indicative of the current passing through the torquer windings.