Low pressure fitting
US4690437A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Feb 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/911
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed fitting connects a tubing end to a fluid conducting member which have a fluid port and end walls surrounding the port and a threaded portion surrounding the end wall. The fitting comprises a ferrule of resilient deformable material having a forward portion with a wide flat sealing surface which is adapted to mate with and sealingly engage the end wall surrounding the port. The ferrule has a throughbore with a diameter through its rearward portion being sufficient to receive the tubing end and the diameter through the forward portion being smaller than the tubing exterior thereby forming a tubing abutting shoulder within the ferrule. The ferrule is forced into sealing abuttment with the end wall of the fluid conducting member and into sealing engagement around the tubing by means of a fastener having a throughbore for receiving the tubing which is flared at its forward end to present conical walls for axially engaging the rearward end of the ferrule. The fastener has a threaded portion for threadedly engaging the threaded portion of the fluid conducting member, thus when the fastener is tightened on the threaded portion of the fluid conducting members, the conical wall…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.