The detergent dispensing apparatus is adapted to be used in a washing appliance of the type having a tub for receiving the articles to be washed. The apparatus comprises a detergent storage hopper having a bottom wall opening whereby the hopper stores the detergent and dispenses the same through the...http://www.google.com/patents/US3988908?utm_source=gb-gplus-sharePatent US3988908 - Detergent dispensing apparatus for washing machine
