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. 09, 2022
Filed:
Mar. 15, 2019
Applicant:
Korea Fa Industrial Co., Ltd, Gwangju-Si, KR;
Inventors:
Jong-Kil Kwon, Seongnam-Si, KR;
Yun-Jeong Choi, Seongnam-Si, KR;
In Kwon, Seongnam-Si, KR;
Jin Kwon, Seongnam-Si, KR;
Hyeon Kwon, Seongnam-Si, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/04 (2006.01);
U.S. Cl.
CPC ...
B23B 51/0473 (2013.01); B23B 51/0426 (2013.01); B23B 2250/04 (2013.01);
Abstract
The present invention relates to a long hole saw for a composite material insulation panel for easily cutting a steel sheet of a hard material and a heat insulator such as Styrofoam or urethane of a soft material in one direction, wherein it is possible to reduce shaking vibrations generated during the cutting and to easily, precisely, and stably drill holes when drilling holes for the installation of pipes, conduits, etc. into a composite material insulation panel used for wall or roof construction of a building.