Magnetic Conveyor Systems, Apparatus and Methods Including Moveable Magnet

• US 20120295358A1
• Filed: 01/20/2011
• Published: 11/22/2012
• Est. Priority Date: 01/21/2010
• Status: Abandoned Application

• Current Assignee: Siemens Healthcare Diagnostics Incorporated (Siemens AG)
• Original Assignee: Siemens Healthcare Diagnostics Incorporated (Siemens AG)
• Inventors: Evers, Timothy, Ariff, Gregory, Sawant, Milind, Vijay, Tumkur
• Application Number:
  US13/574,036
• Publication Number:
  US 20120295358A1
• Time in Patent Office: Days
• US Class Current: 436/47
• CPC Class Codes: B65G 15/58 with means for holding or retaining the loads in fixed position, e.g. magnetic
• CPC Class Codes: B65G 54/025 the load being magnetically coupled with a piston-like driver moved within a tube
• CPC Class Codes: G01N 35/026 having blocks or racks of reaction cells or cuvettes
• CPC Class Codes: Y10T 436/113332 with conveyance of sample along a test line in a container or rack

Abstract

Disclosed are magnetic conveyor systems and apparatus having a magnetic coupling with a housing and moveable magnet therein. The moveable magnet is substantially constrained in one dimension and adapted to move in another. The moveable magnet is adapted to magnetically couple with an attracting portion of a sample rack and move the rack along a conveying surface. Ease of transfer of sample racks is provided while minimizing spillage from the open sample containers therein. Method of operating the conveyor system are provided, as are other aspects.

Claims

1. A magnetic conveyor system, comprising:

a conveying surface along which a sample rack containing one or more sample containers is adapted to be conveyed, the sample rack including an attracting portion; and

a magnetic coupling situated adjacent to the conveying surface and moveable along a direction of the conveying surface, the magnetic coupling including;

a housing, and

a moveable magnet adapted to move relative to the housing and, in operation, magnetically couple with the attracting portion as the magnetic coupling is traversed adjacent to the sample rack wherein relative movement of the moveable magnet within the housing is substantially restrained in a direction parallel to the conveying surface and is moveable in a direction perpendicular to the conveying surface.

2. The magnetic conveyor system of claim 1, wherein the housing includes a channel in which the moveable magnet translates.

3. The magnetic conveyor system of claim 2, wherein the channel includes an absorber on at least one end thereof, which is adapted to damp an impact of the moveable magnet.

4. The magnetic conveyor system of claim 1, wherein the attracting portion is a ferromagnetic member.

5. The magnetic conveyor system of claim 4, wherein the ferromagnetic member is a magnetic grade stainless steel.

6. The magnetic conveyor system of claim 1, wherein the attracting portion is positioned on a bottom portion of the sample rack.

7. The magnetic conveyor system of claim 1, wherein the magnetic coupling is mounted to a conveyor component and moveable along a direction of the conveying surface by the conveyor component.

8. The magnetic conveyor system of claim 1, wherein the moveable magnet moves vertically in a channel formed in the housing as the moveable magnet is positioned adjacent to the sample rack.

9. The magnetic conveyor system of claim 7, wherein a distance between an activated position and at rest position of the moveable magnet is between about 4 mm and 6 mm.

10. A method of conveying a sample rack, comprising:

providing a conveying surface along which the sample rack containing one or more sample containers is adapted to be conveyed, the sample rack including an attracting portion;

providing a conveyor component having a magnetic coupling thereon, the magnetic coupling including a housing and a moveable magnet; and

moving the conveyor component so that the magnetic coupling is positioned adjacent to the sample rack on the conveying surface so that the moving magnet magnetically couples with the attracting portion to convey the sample rack on the conveyor surface and wherein relative movement of the moveable magnet within the housing is substantially restrained in a direction parallel to the conveying surface and is moveable in a direction perpendicular to the conveying surface.

11. A sample rack conveyor apparatus, comprising:

a conveyor belt including a belt surface; and

a magnetic coupling provided on the conveyor belt, the magnetic coupling including;

a housing, and

a moveable magnet adapted to move relative to the housing and, in operation, magnetically couple with an attracting portion of a sample rack as the magnetic coupling is traversed adjacent to the sample rack, and wherein relative movement of the moveable magnet within the housing is substantially restrained in a direction parallel to the belt surface and is moveable in a direction perpendicular to the belt surface.