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:
Sep. 26, 2000
Filed:
Aug. 17, 1994
Edward P Furlani, Lancaster, NY (US);
J Kelly Lee, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A magnetically biased electromagnetic shuttering device for controlling the shutter blades of a camera. The device includes a yoke having a core and a coil, the coil being capable of receiving current which produces a first magnetic field existing inside and outside the core. A movable magnet is coupled to the shutter blades, has a second magnetic field and is positioned adjacent to the core so that the second magnetic field interacts with the first magnetic field. A magnet, separate from the yoke, produces a third magnetic field and is positioned adjacent to the movable magnet in order to influence the motion of the movable magnet and to provide controllable detents for the movable magnet.