Manufacture of electroacoustic transducers which r

专利名称：Manufacture of electroacoustic transducers

which require molding an elastomer to thesurface of the transducer material

发明人：Frank Massa申请号：US05/796350申请日：19770512公开号：US04128370A公开日：19781205

摘要：This invention discloses a mold design which limits the maximum pressure thatcan be developed inside a closed cavity containing a polarized ceramic as a result of thevolume expansion of the molding compound during the curing cycle. The pressurecontrol is achieved by interposing a spring member between the mold and the pressuresource which closes the mold. The spring will deflect slightly to absorb any volumeexpansion of the molding compound during the curing cycle, thus preventing anysignificant increase in pressure in the cavity and thereby preventing depolarization of theceramic.

申请人：FRED M. DELLORFANO, JR. AND DONALD P. MASSA, TRUSTEES, THESTONELEIGH TRUST

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