Pipe connection with a connecting portion formed onto the pipe
US6431613B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Oct 19, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L19/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe connection has a connecting member (1). The connecting member (1) has a first end face (4), a first conical bore (5), starting to taper from the latter, which defines a first cone angle (11). The connecting member also includes an axial bore length (9) followed by a bore (6). The outside of the connecting member (1) has a threaded portion (3). A nut (13) has a second conical bore (15) tapered in the direction opposite to the direction of the first conical bore (5). The second conical bore defines a second cone angle (16). A through-bore (17) is in the nut (13). A pipe (18) has a pipe projection (19) which extends into the bore (6) of the connecting member (1). A connecting portion (21) is on the pipe (18). A first conical tensioning face (22) which cooperates with the first conical bore (5) is on the connecting portion (21). The first conical tensioning face defines a third cone angle (23) which is greater than the first cone angle (11) and whose axial length of overlap (32) with the first conical bore (5) is smaller than 15% of the axial bore length (9) of the first conical bore (5). The connecting portion (21) has a second conical tensioning face (25) which cooperates with…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.