Patent ID: 9719513
Date: 2017-08-01
CPC Classifications: F04B,F04C

Claim:
1. A pump, comprising: a pump chamber having a rotor with gates supported in said pump chamber so that said rotor can rotate; an electric motor operable to driving the rotor; an outlet; a mounting plate having an inlet port fastened thereto, wherein said inlet port is in active connection with an inlet channel; a filter arranged in the inlet channel between the inlet port and the pump chamber, wherein the filter is provided with a frame with sealing lips; and wherein the frame includes a circular aperture extending through a middle portion thereof, wherein the frame includes filter surfaces formed as arms that extend outward from the circular aperture, and wherein each arm is disconnected from each other except via the circular aperture, thereby forming a cross shape such that an outer periphery of the frame is non-circular.