Document Type and Number:
Japanese Patent JPS4866216
Kind Code:
A
Abstract:
Pipe couplings for connecting pipe sections with two threadedly engageable coupling members, one of them acting as an outer coupling nut, with sealing means between the coupling members and the pipe section concerned, including a first, metallic ring interposed between the coupling nut and the pipe section, and a second, elastic ring in operative engagement with at least one of the coupling members and with the first ring, the latter and a coupling body having axial passages therein contiguous with that of the pipe section, and annular tooth means on inner wall portions of the first ring, for tight radial engagement with outer wall portions of the pipe section when the coupling nut is tightened about the coupling body and the sealing means.
Application Number:
JP12422772A
Publication Date:
September 11, 1973
Filing Date:
December 11, 1972
Export Citation:
International Classes:
F16L19/12; F16L19/08; (IPC1-7): F16L19/08
Domestic Patent References:
| JPS317848Y1 | ||||
| JP39179720Y1 | ||||
| JPS3818463Y1 |