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:
Jan. 07, 1992
Filed:
Apr. 19, 1991
David B MacCulloch, Saugus, CA (US);
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Abstract
A fiber optic rotary joint provides for a comparatively large number, up to 500 or more, of optical fibers to cross a rotary-stationary interface. A large, but finite number of turns are allowed between the rotary and stationary parts of the joint structure, but communication of optical signals along the fibers may continue uninterrupted while relative rotation of the joint components is underway. The joint also provides for environmental sealing and a possible pressure differential between the rotary and stationary environments connected by optical fibers through the inventive joint. Means are provided to safeguard the joint against overwinding as would result from an excessive number of relative rotations between the components of the joint.