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. 17, 1996
Filed:
Jan. 20, 1995
Yoshiyuki Mizuno, Shizuoka, JP;
Kikuo Ogawa, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
A push button switch including a moving member movably disposed inside a housing, a movable contact provided on the moving member, a fixed contact disposed inside the housing, a main spring for urging the moving member toward the fixed contact, and a push button disposed in an opening in the housing so as to engage the moving member. When the push button is pushed toward the fixed contact, the moving member is moved by the main spring by a preset distance toward the fixed contact so that the movable contact contacts the fixed contact. An auxiliary spring urges the push button in a direction away from the fixed contact by a force that is larger than a force of the main spring. The auxiliary spring has a larger diameter than the main spring, is substantially coaxial with the main spring, and can overlap the main spring.