Title:
LONG HOLE SAW FOR COMPOSITE MATERIAL INSULATION PANEL
Document Type and Number:
WIPO Patent Application WO/2019/194431
Kind Code:
A1
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.
Inventors:
KWON JONG-KIL (KR)
CHOI YUN-JEONG (KR)
KWON IN (KR)
KWON JIN (KR)
KWON HYEON (KR)
CHOI YUN-JEONG (KR)
KWON IN (KR)
KWON JIN (KR)
KWON HYEON (KR)
Application Number:
PCT/KR2019/003019
Publication Date:
October 10, 2019
Filing Date:
March 15, 2019
Export Citation:
Assignee:
KOREA FA IND CO LTD (KR)
International Classes:
B26F1/16; B23B51/04; B26D7/26
Foreign References:
| JP4815137B2 | 2011-11-16 | |||
| KR100610886B1 | 2006-08-09 | |||
| JPH0634890Y2 | 1994-09-14 | |||
| KR101501367B1 | 2015-03-12 | |||
| KR100881060B1 | 2009-01-30 |
Attorney, Agent or Firm:
MIN, Byoung-Oh (KR)
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