Magnetic lifting device for a cellular sample treatment apparatus
US4530304A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1984 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Mar 8, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic lifting device for lifting a stack of specimen holders out of one tube and lowering them into another tube is disclosed. The device avoids the necessity of manual handling of the stack. In the device there are a number of stack holding tubes, each one open at the top, positioned in a circle about a vertical axis of a rotatable carousel. An indexing system rotates the carousel to selectively place one of the stack holding tubes in a treatment position. The improvement comprises a magnetizable member attached to the top of the stack of sample holders, a transfer tube having a bottom opening positioned to mate on top of the stack holding tube to hold the magnetizable member in a magnetic field, a device to raise and lower the magnetic coil about the transfer tube to raise and lower the magnetic coil about the transfer tube to raise the stack into the transfer tube allowing the carousel to be rotated, and lower the stack into another stack holding tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.