Patent ID: 7513393
Filing Date: 2009-04-07
Classification: B67D,F16N,G01F

Abstract:
1. A container system, comprising: a container for holding a viscous fluid; a vertical pump tube in the container; a generally horizontal follower plate in the container having a first opening receiving the pump tube, said follower plate being adapted to rest on the fluid in the container and to move up and down in the container in response to a change in a level of fluid in the container; and a sensor assembly for sensing the level of fluid in the container, said sensor assembly comprising: a limit device attached to the follower plate for engaging the first device to limit separation of the first device in a vertical direction away from the follower plate when the follower plate moves in the container whereby viscous fluid on said guide or said first device does not prevent movement of the first device on the guide as the follower moves in the container.