Method for automatic sample positioning

Details Method for automatic sample positioning Method for automatic sample positioning

1991-11-18

1993-06-01

Housel, James C.

Chemistry: analytical and immunological testing

Automated chemical analysis

With conveyance of sample along a test line in a container...

436 48, 414225, 414783, 901 31, B25J 916

Patent

active

052159230

ABSTRACT:
A method for conveying a sample container from a sample tray which has a designated location for supporting the container. The container is placeable on the tray at a location separated from the designated location such that the container will have an orientation which differs from a desired orientation. The method includes the following steps executing sequentially disposing a robot mechanism having a plurality of grasping fingers above the tray so that the fingers surround the designated location; executing a first robot mechanism operation for moving the fingers horizontally toward the designated location so that the fingers grasp the container and locate the container at the designated location; executing a second robot mechanism operation for moving the fingers horizontally away from the container to leave the container on the tray at the desired location and with the desired orientation; and executing a third robot mechanism operation for moving the fingers horizontally toward the container so that the fingers grasp the container while the container has the desired orientation.

REFERENCES:
patent: 4557655 (1985-12-01), Berg
patent: 4598456 (1986-07-01), McConnell
patent: 4715773 (1987-12-01), Parker et al.
patent: 4731223 (1988-03-01), Wakatake
patent: 4843712 (1989-07-01), Hellstern
patent: 4876204 (1990-10-01), Inoue et al.
patent: 4927545 (1990-05-01), Roginski

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