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:
Oct. 22, 2002
Filed:
Apr. 02, 2001
Jung-Chang Jong, Chungli, TW;
Jenn Feng Industrial Co., Ltd., Taoyuan, TW;
Abstract
A two-stage self-locking switch for electric hand tools mainly comprises a trigger base structure, an auto-return switch, a tigger-controlling structure, a trigger structure, and a cover for the trigger base structure. Wherein the trigger-controlling structure pivoted to the trigger base structure comprises namely a button connected with an arresting part on its bottom and a flexible slice on the bottom of its front, and the flexible slice is connected with both an upward extending retaining key and a downward extending reversed hook plate. Whereas, the trigger structure is pivoted to the trigger base structure with respect to the position of the trigger-controlling structure, and on the appropriate positions of the front of the trigger structure corresponding to the arresting part and the reversed hook plate is provided with a resisting plate and a hook plate respectively.