Fitting for plastic tubing
US6402206B1 · kind B1 · utility
Inventors
Key dates
| Filing date | May 10, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | May 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/921
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plastic fitting for plastic tubing is disclosed. The plastic fitting comprises a main body (10) having a tip sleeve (16) at one end of and an externally threaded portion (14) at the other end thereof, a cylindrical cap nut (20, 52, 64) threadedly attachable to the main body (10) in a manner to compress a flared end (36) of the plastic tubing down against the tip sleeve (16) of the main body, and a resiliently deformable split ring (30, 42, 60) that resides within an annular internal recess (28, 50, 72) in the cap nut (20, 52, 64) for retaining the flared end (36) of the plastic tubing in position around the main body tip sleeve (16). The resiliently deformable split ring (30, 42, 60) includes a plurality of inwardly facing bosses (38, 46) that cooperate with respective spaced apertures (40) formed in the plastic tubing flared end (36). These split ring bosses (38, 46) engage the tubing flared end to retain the tubing flared end within the cap nut and in functional position around the main body tip sleeve (16). In a first embodiment, the split ring (30) is simple in construction, having a rectangular cross-section, and is intended to reside within the internal annular recess (28) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.