>>27 【The present invention relates to a sex doll for providing a user with sexual satisfaction, and more particularly, to a sex doll designed to be a human female in appearance which comprises a mock-vagina cavity.】 http://www.fleshbot.com/archives/sex-patents-017074.php
a resilient device body having a tip portion, a flange and an intermediate side wall portion extending outwardly from said tip portion to said flange, wherein said flange is sized and shaped to encompass the female clitoris;
wherein, said tip portion is deformable and defines a vacuum producing upper chamber, and said intermediate side wall portion is outwardly convex comprising a plurality of protuberances and is substantially non-deformable, said intermediate side wall portion defines a vacuum resevoir lower chamber.
