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:
Apr. 13, 2021
Filed:
May. 23, 2018
Georgia Tech Research Corporation, Atlanta, GA (US);
Emory University, Atlanta, GA (US);
Cheng-Yun Karen Liu, Atlanta, GA (US);
Sehoon Ha, Atlanta, GA (US);
Yun Seong Song, Atlanta, GA (US);
Lena Ting, Atlanta, GA (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Emory University, Atlanta, GA (US);
Abstract
In a mechanism for recycling energy from stairs (), a step platform () is moveable between an upper and lower position. An energy storage device (), coupled to the platform (), stores energy when a downward force is applied thereto, causing the step platform () to move to the lower position. The energy storage device () also releases stored energy as the step platform () moves from to the upper position. A controllable locking mechanism () locks the step platform () in the lower position when the downward force has caused the step platform () to move into the lower position. A sensor () determines when a downward force has been applied to the next higher step platform (). A controller () signals the controllable locking mechanism () to unlock the step platform () when the step platform () is in the lower position and when the downward force has been applied to the next higher step platform ().