Heating element geometry for use in a tapping saddle
US10697574B2 · kind B2 · utility
0Cited by
23References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2018 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Aug 10, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tapping saddle for a plastic main pipe carrying a medium includes a stub having a central axis, a saddle piece, and a drill. The drill is configured to be moved axially in the stub. A heating element geometry, which is used for welding the tapping saddle to a main tube outer circumference, is arranged on an inside diameter of the saddle piece. The heating element geometry has a winding having an outer winding region and an inner winding region. In the inner winding region, the winding extends in meandering loops along a circle concentric with the central axis of the stub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.