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:
Dec. 25, 2018
Filed:
Sep. 03, 2015
Tsc Inc., Hwaseong-si, Gyeonggi-do, KR;
Oh Su Kim, Suwon-si, KR;
Sun Il Park, Yongin-si, KR;
TSC Inc., Hwaseong-si, Gyeonggi-do, KR;
Abstract
Disclosed is a pipe heater comprising a tubular heat insulating layer having a pair of separating surfaces formed over the entire length thereof, an external cover bonded to the outer surface of the heat insulating layer to enclose the heat insulating layer, a heating layer provided inside the heat insulating layer and including a heating wire therein, and an internal cover provided inside the heating layer to enclose the heating layer, wherein the heat insulating layer includes a polyimide foam layer formed of polyimide foam, and a protection layer is interposed between the heat insulating layer and the heating wire to prevent bubbles distributed in the polyimide foam layer from dissipating due to heat transferred from the heating wire.