Filling nozzle having a tube holding portion for holding a rubber tube
US5105997A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1990 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | Aug 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A filling nozzle includes a vertical tubular nozzle body for receiving the liquid to be filled and supplied thereto forcibly and intermittently, and a rubber tube connected to the lower end of the nozzle body and having an opening at its lower end. The rubber tube is folded at required portions to constrict the opening. The opening is held closed by the elasticity of the rubber tube against gravity acting on the liquid within the nozzle body when the supply of the liquid is discontinued but is opened by the pressure of the liquid when the liquid is supplied to the nozzle body. The nozzle body is provided at its lower end with a tube holding portion having the rubber tube fitted thereover for holding the rubber tube in shape. The tube holding portion is externally in conformity with the inner surface of the rubber tube except at the folded portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.