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.

Date of Patent:
May. 18, 1999

Filed:

May. 30, 1997
Applicant:
Inventors:

Kwanhum Park, Kyunsangnam-do, KR;

Youngho Gho, Tajen-si, KR;

Jeungsang Go, Tauen-si, KR;

Byungman Kwak, Kyungki-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200409 ; 200408 ; 337343 ;
Abstract

A threshold microswitch includes a movable electrode, realizing an initial deflection by a difference in residual stresses; an upper electrode, provided at a fixed distance from the movable electrode; and a support mechanism, including a movable electrode support portion which supports both ends of the movable electrode such that a snap-through buckling phenomenon can be used when the movable electrode receives a threshold load. An upper electrode support portion supports the upper electrode such that switching with the movable electrode is realized when the same undergoes snap-through buckling.


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