Swivel coupling
US4113288A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1976 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Dec 6, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L27/0816
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system is disclosed for dispensing fuel, e.g. gasoline, from a reservoir tank into a consumption tank as in an automobile. The system incorporates two fluid flow channels, first a channel for liquid fuel and second a return line for fluid vapors. The channels include flexible hoses extending from a pump to a dispensing nozzle with rotatable or swiveled couplings. The couplings include two mating members affixed together to provide a fluid seal and relative rotation to accommodate swivel movement. One coupling member includes a fastening section which may be threaded to affix the coupling to a rigid structure, e.g. pump or nozzle. Also, the one member includes a somewhat cylindrical section defining an external, concentric groove for receiving a ring of nylon-like material. The cylindrical section of the one member is telescopically received within the other member which defines an internal groove for locking engagement with the nylon-like ring. The second member further includes a plurality of O-rings to accomplish a fluid seal with the cylindrical section. A fastener structure is also incorporated in a second member for locking it to a flexible hose. The coupling member provides…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.