Fitting for installation of a nipple from the exterior of a duct and method of installation
US6467815B1 · kind B1 · utility
1Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Nov 17, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L41/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A special fitting for installing a flanged nipple from the exterior of a duct. The threaded nipple has a handling stem formed integrally therewith, which is used to hold the nipple and flange inside the duct while a flexible cup seal washer is deformed and passed through the space between the handling stem and the duct. Thereafter, the fitting is drawn up with a nut and the handling stem cut off to provide a nipple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.