Fixing construction for pipe joint
US6131957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Mar 17, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L41/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A construction for fixing a pipe joint is disclosed. The construction includes a pipe joint body within which a fluid transport pipe is connected and engaged in a sealed state via an elastic seal, a press ring fitted on the fluid transport pipe, the press ring being peripherally divided to provide a plurality of press-ring segments, a fastener for fasting each press-ring segment to a connecting portion of the pipe joint body along a pipe axis direction, and a retainer member interposed between an outer peripheral face of the fluid transport pipe and an inner peripheral face of the press ring, the retainer member being capable of radially biting into the outer peripheral face of the fluid transport pipe. A cam surface formed in the inner peripheral face of the press ring is operable to reduce the retainer member radially with a relative movement between the pipe joint body and the press ring along the pipe axis direction in association with a fastening operation by the fastener. The pipe joint body and each press-ring segment include, at respective portions thereof opposed to each other along the pipe axis direction, an engaging recess and an engaging projection which come into enga…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.