Amalgam dispensing device
US4502611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Feb 7, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/68
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for storing and dispensing mercury and tablets comprising: PA0 (a) a housing having a main discharge port; PA0 (b) a normally closed mercury reservoir extending from the housing, the reservoir including a discharge port; PA0 (c) a tablet container extending from the housing, the container having a discharge port; PA0 (d) a passageway within the housing, part being below the mercury discharge port and another being above the main discharge port, the passageway being adapted to receive a slidable member, the slidable member being adapted to slide within the passageway between first and second positions; PA0 (e) a vent including a passage communicating with the interior of the mercury reservoir near the top and with the passageway when the slidable member is not in the first position, but is sealed from the passageway when the slidable member is in the first position; PA0 (f) a mercury metering cavity within the slidable member to receive mercury from the reservoir through the discharge port when the slidable member is in one of the two positions, and to discharge mercury through the main discharge port when it is in the other position; and PA0 (g) a tablet dispenser in the h…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.