The pad of the invention is composed of impervious backing sheet and a pervious body-side liner with an absorbent material there between. The pad is elasticized along its edges from points at substantially one end extending along the longer edges of the rectangular pad for at least two-thirds of the...http://www.google.fr/patents/US4668230?utm_source=gb-gplus-shareBrevet US4668230 - Bowed, trough-like absorbent pad
