Patent ID: 7976955

Claim:
An actuator housing that includes upper and lower flanges cooperatively arranged to form the housing, each flange being coated with a resin-containing coating composition; and a diaphragm compressively retained between the upper and lower flanges to form at least one pressure chamber within the housing, the diaphragm formed from a rubber composition which comprises at least a copolymer rubber and a plasticizer having sufficient solubility in said resin-containing coating composition such that the diaphragm, held under sufficient compression between the flanges, produces a bond between the rubber composition and the resin-containing coating on the flanges to provide increased retention of the diaphragm between the flanges, wherein the plasticizer contained in the copolymer rubber is soluble in the resin of the coating composition in an amount of at least 0.1 gram plasticizer per 100 grams of coating composition resin.