TOOTHBRUSH Russian patent published in 1997 - IPC

FIELD: sanitary and hygienic articles. SUBSTANCE: toothbrush has handle and head with bristles. Head is disposed in spring-biased position within handle cavity, which is communicated with atmosphere. Head is provided with channels for communicating handle cavity and bristles. During cleaning of teeth, head is movable to bristles to foam tooth paste. EFFECT: increased efficiency by improved cleaning properties. 1 dwg