Patent ID: 7105090
Filing Date: 2006-09-12
Classification: A01K,B01D

Abstract:
1. A filter device for filtering a fluid flow, the filter device having a filter chamber having an inlet port for connection to a source of fluid to be filtered and an outlet port for delivery of fluid filtered by the device, the chamber housing first, second and third filter elements each for trapping particulate material while allowing passage of fluid between first and second opposite sides, wherein the second sides of each of the first and second filter elements are connected to an intermediate passage, the second side of the third filter element and the intermediate passage are connected to the outlet port, the filter device has two alternately selectable configurations, and in a first of the configurations the first side of the first filter element is connected to the inlet port and the first side of the second filter element is connected to the first side of the third filter element, and in a second of the configurations the first side of the second filter element is connected to the inlet port and the first side of the first filter element is connected to the first side of the third filter element.