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:
Aug. 18, 2020
Filed:
May. 14, 2019
Recovery Force, Llc, Fishers, IN (US);
Matthew W. Wyatt, Fishers, IN (US);
Brian J. Stasey, Fishers, IN (US);
Ryan Hamilton, Livingston, MT (US);
Recovery Force, LLC, Fishers, IN (US);
Abstract
A lace-tightening device for a shoe lace in a shoe includes a rotating cam within a housing disposed within the shoe. The cam is connected to the opposite ends of the shoe lace and includes an outer surface for receiving the shoe lace as the cam rotates to pull the lace. A ratchet arm is slidably disposed within the housing and includes linear teeth arranged to engage the teeth of a driven gear as the ratchet arm translates in a linear direction, to rotate the gear in the one direction. The driven gear is part of a gear train connected to the cam to rotate the cam. The ratchet arm is pulled by at least one shape memory alloy (SMA) wire attached to a controller that is configured to execute a power cycle to energize and deenergize the SMA wire to thereby sequentially translate the ratchet arm in the linear direction, and ultimately to incrementally pull and tighten the shoe lace.