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. 24, 1988
Filed:
Sep. 28, 1987
Leonard P Tetrault, Northport, NY (US);
James R Miller, Center Moriches, NY (US);
Aerodyne Controls Corporation, Ronkonkoma, NY (US);
Abstract
This miniature acceleration switch has a cylindrical metal mass movable axially in a cylindrical chamber in a cylindrical metal shell. The chamber is filled with an inert gas to inhibit corrosion. The mass has a frustoconical end section inserted into a metal coil spring engaged at one end on an annular shoulder at the wider end of the section, and engaged at its other end in an annular recess formed in a metal ring of a header closing and welded to the other end of the chamber to seal it hermetically. The header has a glass insulator bonded to the ring and carries at its center a circuit lead projecting into the chamber to be contacted by the mass when it moves against a spring load in response to a predetermined force of acceleration.