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. 06, 1997
Filed:
Apr. 18, 1995
Bruce B Figi, Davis, IL (US);
Thomas R Giuffre, Freeport, IL (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
An accelerometer is provided in which a magnet structure is encapsulated within a distal end of a cantilever beam that is formed as an integral part of a housing structure. The cantilever beam, the distal end and the housing structure are formed of a nonmagnetic material, such as plastic, during a single injection molding procedure. The magnetic structure within the distal end of the cantilever beam can comprise two magnets associated with a pole piece and disposed within an opening formed in a nonmagnetic bracket. Although many types of magnet structures are possible within the scope of the present invention, a particularly preferred magnet structure comprises two magnets that are arranged in opposite polarity with the opposite poles of the two magnets being located adjacent to each other on opposite sides of a centerline. The magnet structure can be held in place during the injection molding process by the magnetic attraction between the magnet structure and a ferromagnetic portion of the mold. The magnetically sensitive component, which is held in place within a wall of the housing structure, can be a Hall effect element.