Patent ID: 8002865

Claim:
A separator assembly for removing material that is entrained in a gas stream comprising: a. a housing having a head part which provides the upper end of the housing and a body part which provides the lower end of the housing; and b. a shield which extends across the housing towards the lower end thereof so as to leave a collection space between it and the lower end in which material that is separated from the gas stream can collect, with at least one opening in or around the shield through which the material can flow past the shield into the collection space, c. a liner sleeve which covers at least a part of the inside wall of the body part between the shield and the upper end of the body part, the liner sleeve having an inner side wall with an imperforate surface, in which the surface of the inner side wall of the liner sleeve has formations which reduce the tendency of liquid to cling to the surface of the inner side wall of the liner sleeve, the formations including one of: i) a rough texture, ii) grooves, and iii) a helically extending rifle surface.