配管シール装置

Japanese Patent JP7383309

B2

The present invention includes: a first part (11) which has a hollow cylindrical shape and circumscribes or is inscribed in a pipe (26); and a second part (15) which has a cylindrical shape and circumscribes or is inscribed in the first part (11), wherein inclined portions (23), which have inclination angles that can hinder the second part (15) from retreating from the first part (11), are formed between the first part (11) and the second part (15) so as to correspond to each other. That is, when a pipe sealing device is mounted to the pipe and the second part (15) is retreated from the pipe (26), the inclined portion (23) of the first part (11) and the second part (15) push against each other, the first part (11) is pressed against and fixed to the pipe, and the second part (15) can no longer retreat from a limited line due to inclination angles. Connecting or closing pipes typically involves making screws or welding, and thus requires many tools and consumes much time. In contrast, such work can be conveniently performed using the pipe sealing device of the present invention. Also, a fluid inlet and outlet portion (43) is provided, and thus a pipe sealing test can be easily performed for each section.

JPS52111020

BULB WATER TAP

KANG,Sugjae

JP2021578154A

November 20, 2023

July 03, 2020

Click for automatic bibliography generation  

KANG,Sugjae

F16L19/06; F16L29/00

JP2001074192A
JP62293096A
JP2012189230A
JP3122465U
JP2019015407A
JP7243576A
JP9278288A

EP0103777A1
GB1008313A
KR200444547Y1
CN108279093A
WO1998051958A1
WO1999032821A1
US5676174
US20150369689
CN206875031U
CN106526770A
CN109990163A

SK Patent Attorney Corporation
Akihiko Okuno
Hiroyuki Ito

Previous Patent: New compounds and their applications

Next Patent: Baggage loading and unloading system