Patent ID: 8312594
Filing Date: 2012-11-20
Classification: A47L

Abstract:
1. A suction head, comprising: a substantially rigid conduit comprising an exhaust channel; a substantially rigid body comprising a crown portion coupled to the conduit, and an intake opening formed between a pair of spaced apart lips adjacent to a foot portion thereof; and a generally fan shaped suction channel internal of the body and extended between the intake opening thereof and the exhaust channel of the conduit, the suction channel comprising a non-uniform transverse cross section that increases in cross-sectional area substantially symmetrically outwardly from a central portion thereof and fairs smoothly into fluid communication with both the intake opening of the body and the exhaust channel of the conduit, wherein the central portion further comprises a transverse connecting channel smoothly faired between elongated ovoids that increase in area substantially symmetrically outwardly therefrom.