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:
Feb. 18, 2014
Filed:
Jul. 08, 2011
Chung-yi Lee, New Taipei, TW;
Chung-Yi Lee, New Taipei, TW;
Other;
Abstract
A resilient returning device for a power operated piston tool comprises a one piece elastic bellow-shaped body including a plurality of repeating pleats, each of which has two pleat halves that cooperatively define a first elbow therebetween. Each of the pleat halves of each of the pleats cooperates with an adjacent one of the pleat halves of an adjacent one of the pleats to define a second elbow therebetween. Each of the first and second elbows has a bulging side. The bellow-shaped body is formed with a plurality of loop-shaped grooves that are indented from the bulging sides of the first elbows of the pleats or the bulging sides of the second elbows of the pleats, respectively.