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:
May. 14, 1996
Filed:
Jul. 28, 1994
Yoshiaki Tanabe, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
An electromagnetic device for cameras includes a yoke that has a contact surface and is attached to a base plate. An armature having a contact surface faces and is movable into contact with the contact surface of the yoke. An armature shaft has one end attached perpendicularly to the contact surface of the armature, and has a catch at its opposite end. An armature lever is freely movable on the shaft between the catch and the armature. A biasing member, such as a spring, biases the armature away from the yoke. A coil is provided on the yoke, and when in an excited state, causes the contact surface of the armature to come into contact with the contact surface of the yoke to magnetically adhere the armature to the yoke, and when in an unexcited state, disengages the armature from the yoke. The armature lever includes one or more openings, such as a circular hole and/or an elongated slot, that are used to apply an elastic adhesive between the armature lever and the armature.