Title:
METHOD FOR MANUFACTURING PACKING FOR PIPE
Document Type and Number:
WIPO Patent Application WO/2020/246653
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a packing for a pipe which is inserted into a housing having a hollow shape so as to prevent fluid flowing inside the pipe from leaking to the outside, in which a body of the packing (100) comprises: an outer circumferential portion (110) having a hollow shape and positioned outside based on the pipe; left and right side surfaces (120, 130) formed downward from both left and right ends of the outer circumferential part (110); and an inner circumferential portion (140) formed toward a central portion from the left and right side surfaces (120, 130), wherein the inner circumferential portion (140) is formed with a gap (1) to be divided into left and right inner circumferential portions (141, 142), and a fluid flows in and out through the gap (1), wherein the packing for a pipe is manufactured by injecting molten rubber into a mold (3000) comprising an outer mold (3100) and an inner mold (3200).
Inventors:
KIM KUK JIN (KR)
Application Number:
PCT/KR2019/007508
Publication Date:
December 10, 2020
Filing Date:
June 21, 2019
Export Citation:
Assignee:
HI STEN CO LTD (KR)
International Classes:
B29C39/22; B29C39/02; B29C39/26; B29L31/26
Foreign References:
| KR20090100589A | 2009-09-24 | |||
| KR20030090617A | 2003-11-28 | |||
| KR20030061298A | 2003-07-18 | |||
| KR20050080102A | 2005-08-11 | |||
| US4768813A | 1988-09-06 |
Attorney, Agent or Firm:
KIM, Seok Kea (KR)
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