Patent ID: 7632080

Claim:
A bezel for use in delivery of pneumatic pressure comprising: a rigid block having a pumping side and a port side, the port side having a plurality of ports, each port providing a pneumatic connection to the bezel; a plurality of cavities on the pumping side of the rigid block, each cavity in fluid communication through the rigid block with one of the ports; at least one depression in the pumping side of the rigid block, the depression having at least two of the plurality of cavities therein; and ribs extending up from the depression, the ribs arranged to provide a plurality of air passages between the at least two cavities in the depression; wherein the ribs leave an air passage unobstructed by ribs at each of the at least two cavities, such that at each of the at least two cavities the respective air passage connects the cavity to the plurality of air passages between the at least two cavities.