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:
Mar. 01, 2022
Filed:
Nov. 05, 2020
Darfon Electronics Corp., Taoyuan, TW;
Sheng-Yun Yang, Taoyuan, TW;
DARFON ELECTRONICS CORP., Taoyuan, TW;
Abstract
A restoration assembly of a button switch includes first and second sleeves, and a spring disposed between the two sleeves. A first outer diameter of the first sleeve is less than a second inner diameter of the second sleeve to make the second sleeve movably jacket outside the first sleeve. The jacketed first and second sleeves are disposed between a key cap and a base of the button switch. The spring has a first end portion, a second end portion and a middle section. A middle outer diameter of the middle section of the spring is larger than a first inner diameter of the first sleeve. During the spring being compressed along with the key cap being pressed downward, the middle section is squeezed to shrink and slide into the first sleeve through an end edge of the first sleeve, thereby producing a tactile feedback and/or a first sound.