Hose coupling
US4524997A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 1984 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Mar 15, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/113
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hose coupling for connecting lengths of fire hose is formed by coupling halves. Each coupling half includes a hose connection piece and a cam ring rotatable relative to the hose connection piece. The cam rings provide a bayonet-type locking engagement. The hose connection piece has two serially arranged axially extending sections each of different diameters. The larger diameter section receives and holds a length of the fire hose. A neck on the cam ring is rotatably attached to the smaller diameter section. The neck on the cam ring is held on the smaller diameter section against movement in the axial direction. A resilient back-springing holding ring is located adjacent the free end of a smaller diameter section in a recess in the section. The holding ring in combination with the free end of the smaller diameter section forms an annular space in which a sealing ring for the coupling is secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.