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:
Nov. 14, 2017
Filed:
May. 15, 2014
Dong Hyun Kang, Busan, KR;
Dong Hyun Kang, Busan, KR;
Other;
Abstract
The present disclosure provides an automatic doormat device for detecting and replenishing contaminated surface to keep contaminants from entering the house. An exemplary doormat device comprises a sticky sheet configured to adhesively pick up contaminants; a first roller configured to support windings of the sticky sheet; a second roller, spaced apart from the first roller, configured to wind the sticky sheet unwound from the first roller in rotation; a case configured to enclose the first roller and the second roller and support the sticky sheet on a portion exposed between the first roller and the second roller; and a drive motor configured to generate a driving force for rotating the second roller.