FILTRATION DEVICE

摘要

A vacuum filter device comprising a filter body having two holders on opposite sides of a filter. Each holder contains a closed container in a fluid-tight, sealed relationship. The filter is retained by a compression sealing element and the sealing element is maintained in place by a compression element formed of a ring. The compression element is bonded to a portion of the body to hold it, the sealing element and filter in place under a compression seal. Optionally a port in the compression element is formed to align with the vent of the device. Further, an alignment feature on the compression element ensures the port is in alignment with the vent of the device. The device also includes a vacuum port communicating with the downstream side of the filter, and hence the filtrate container.

主权项

1. A vacuum filter device comprising:
a. a filter body having a lower and a top holder disposed front one another, each of the holders adapted to receive respective first and second fluid containers, each container having an open end and a closed end, the open end of the first container being attached to the top holder and the second container being attached to the skirt of the lower holder, each of the open ends being attached to the respective holder in a liquid and air tight manner; b. each of the holders including sealing element for creating a liquid and air tight seal when said containers are coupled to said filter body, each of said containers forming liquid tight receptacles when coupled to said filter body; c. one or more filters compressively sealed within said filter body between the holders by a compression element that is formed of a sealing element and a separate compression element above it so that liquid in the first fluid container must pass through the filter prior to entering the second fluid container; d. a vacuum port extending through the filter body and being in fluid communication with the second fluid container at a downstream side of the filter, the vacuum port adapted to be connected to a vacuum source for drawing the liquid from the first fluid container through the filter and into the second fluid container; and e. a vent passageway in the filter body configured to permit gas in the atmosphere surrounding the vacuum filter device to be in direct fluid communication with the first fluid container on an upstream side of the filter and not to be in direct fluid communication with the second fluid container.