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:
Dec. 22, 1992
Filed:
Jul. 25, 1991
Jude A Sangregory, Spencerport, NY (US);
Robert L Kuhn, Jr, Rush, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A device for connecting a shutter blade to a electromagnetic camera shuttering system that utilizes an armature for producing a first magnetic field, and a stop to control the movement of a shutter blade. The device comprises: a shutter blade that moves across the aperture of the camera and bounces off a stop to control the amount of light that is allowed to enter the camera; and a moveable magnet that produces a second magnetic field, the second magnetic field is coupled to the first magnetic field and a portion of the magnet is sized and shaped to fit the magnet to an orifice in the blade, so that when a portion of the magnet is placed in the orifice the blade will be directly connected to the magnet, and the presence or absence of the first magnetic field will cause the magnet and the blade to move to different orientations. Thus, the blade and the magnet will have a low rotational inertia to increase the speed of the blade and the friction between the blade and the magnet will be controlled to regulate the inertia of the blade and the magnet to prevent the blade from exposing the aperture of the camera when the blade bounces off the stop.