Connecting construction of branch pipe and connecting method thereof
US5924436A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/564
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A connecting construction of a branch pipe is disclosed. The construction includes a branch-pipe joint fixed to an outer peripheral face of an existing pipe and attached to a passage forming member for forming, between the passage forming member and the outer peripheral face of the existing pipe, a guide passage extending from a lower portion to an upper portion of the existing pipe along a peripheral direction of the pipe, with the branch-pipe joint being oriented along a radial direction of the existing pipe so that a branching pipe portion thereof for branch-pipe connection is opened at an upper portion within the guide passage, and a closing member for closing an upper through hole after formation of a lower through hole, the upper through hole being provided in an upper pipe wall of the existing pipe for forming, in a lower pipe wall of the existing pipe, the lower through hole communicated with a lower portion inside the guide passage through the branching pipe portion, with the closure of the upper through hole, communication being established between a branch pipe connected to the branching pipe portion and the existing pipe through the guide passage and the lower through h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.