Thermo lock-n-seal tube end for polyethylene pipe
US5375890A · kind A · utility
2Cited by
5References
8Claims
0Family size
Inventors
Key dates
| Filing date | May 6, 1994 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | May 6, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tube end formed of any suitable material having the shape of a truncated cylinder that is forced over the end of a polyethylene pipe and prior or post heat-treated to provide a THERMO LOCK-N-SEAL.TM. interface between the OD of the polyethylene pipe and the ID of the tube end by melting a portion of the OD of the polyethylene tube sufficient to cause thermal plastic flow of the polyethylene into conformity with the surface of the ID of the tube end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.