Patent ID: 7135060

Claim:
An apparatus for collecting particles entrained in a gas from a source of gas and particles, the apparatus comprising: a housing defining an enclosed chamber, the housing having an inlet opening providing fluid communication between the source of gas and particles and the chamber, and an outlet opening providing fluid communication between the chamber and the exterior of the housing, the outlet opening adapted to be connected to a fluid flow producing means for drawing gas and particles through the housing from the inlet opening to the outlet opening; and a collecting member disposed in the chamber in the housing between the inlet opening and the outlet opening, the collecting member having an upper surface, at least a portion of the upper surface coated with an adhesive and positioned adjacent to the inlet opening so that the ratio of the distance between the inlet opening and the adhesive-coated surface to the diameter of the inlet opening is less than about 0.1, such that, when gas and particles are drawn from the source of gas and particles and through the housing, the inlet opening directs the gas and particles at the adhesive-coated surface of the collecting member for capturing particles on the collecting member.