Self-flaring plastic fittings
US6412832B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jun 8, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The self-flaring plastic fitting is generally utilized in coupling one section of tubing to another section of tubing. In the present invention, at least one of the sections of tubing has an end portion with a substantially uniform diameter and a groove about its periphery. The fitting itself includes a fitting body and a fitting nut. The fitting body is provided with a tapered nose section while the fitting nut is provided with a groove engaging device. In assembling the fitting, the end of the section of tubing incorporating the groove is place proximate the tapered nose section of the fitting body while the opposite end of the section of tubing is inserted through the fitting nut. The fitting nut is then pushed towards the fitting body where the groove engaging device of the fitting nut engages the groove of the tubing. As the fitting nut is joined with the fitting body, the fitting nut is drawn over the fitting body and, correspondingly, the tubing is drawn against and over the tapered nose section of the fitting body causing the tubing to flare and a seal to be created between the tapered nose section and tubing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.