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:
Nov. 11, 2025

Filed:

Sep. 26, 2023
Applicant:

Darfon Electronics Corp., Taoyuan, TW;

Inventors:

Po-Wei Tsai, Taoyuan, TW;

Wun-Huei Wang, Taoyuan, TW;

Kuei-Lin Teng, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/20 (2006.01); H01H 13/14 (2006.01); H01H 13/702 (2006.01);
U.S. Cl.
CPC ...
H01H 13/20 (2013.01); H01H 13/14 (2013.01); H01H 13/702 (2013.01);
Abstract

A keyswitch includes a board, a cap located above the board, a membrane circuit board disposed on the board to make first and second engaging structures of the board protrude from first and second holes of the membrane circuit board respectively, and a lifting device. The lifting device is connected to the cap and the board and includes first and second support members. The first support member is movably connected to the cap and has a pivot end portion. The pivot end portion is movably connected to the first and second engaging structures and has a first abutting portion extending toward edges of the first and second holes along a pivot axis of the first engaging structure. The first abutting portion abuts on the membrane circuit board. The second support member rotatably intersects with the first support member and is movably connected to the cap and the board.


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