Protection of sealing surfaces of metal face seals in tubing fittings
US5829796A · kind A · utility
Inventor
Key dates
| Filing date | Mar 11, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Mar 11, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L19/0212
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fitting includes two glands, each of which has a head with an attached tubing segment having a passage opening through a face on the respective head. A peripheral sealing bead on each head is normal to the axis of the head. Compression means draws the beads toward one another to press them against an intervening gasket to make a seal. A torque suppressor is rigidly mounted to each head, having a tongue with an axially extending complementary edge to contact a tongue on the other torque suppressor to prevent relative rotation of the heads while the compression means is being tightened. Optionally the lengths of the torque suppressor are such as to prevent abutment of the beads unless a gasket is placed between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.