Pipe coupling
US5280969A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1991 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jun 17, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L17/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe coupling having an elastomer sealing sleeve which is approximately C-shaped in cross-section has a cylindrical housing which is split in the longitudinal direction, and which defines inwardly bent end walls and can be constricted like a pipe clip by means of a closure having tensioning screws, in which arrangement the sleeve, which is enclosed at the end faces and at the circumference by the housing and by a metal insert sheet bridging the housing gap and is approximately C-shaped in cross-section, is compressed in the circumferential direction and is brought to bear against the pipes to be coupled. Sliding rings, which are compressible in the circumferential direction, are located between the end faces of the sleeve and the end walls of the housing. Upon assembly of the coupling, these sliding rings are brought to bear against the outer walls of the pipes and form a sliding seat with the latter. This leads to increased insensitivity to changes with regard to the relative position of the sealing parts and the parts to be sealed, as well as to further increases in the existing adaptability of the coupling to irregular pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.