Continuous tapping device
US4945950A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Jun 14, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9029
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A continuous output device for liquid or gaseous fluids comprising a rail having channels each opening to a first surface of the rail through a slit sealed by a sealing strip, the fluid being supplied to the channels of the rail, and a coupling having an opening member for locally pushing aside the sealing strip for passing, at activation of the coupling, the fluid to said coupling beyond the sealing strip for further distribution to a using place. The sealing strip comprises a spiral spring covered with a sealing body for sealing against the slit. The revolutions of the spiral spring are inclined so that the torsional properties of the spring are used for pushing aside the sealing strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.