Patent ID: 7013498

Claim:
A dispenser for suspension from the rim of a toilet bowl to dispense viscous liquid active substance into a stream of water created when the toilet is flushed, said dispenser including: a reservoir containing said viscous active substance within an interior thereof, a body section supporting said reservoir and for releasing a dose of said viscous active substance from said reservoir, under gravity, when the toilet is flushed; a flow restrictor having an inlet side in communication with the interior of said reservoir an outlet side, and at least one aperture extending between said inlet side and said outlet side, said aperture being sized to, in combination with the viscosity of said active substance, restrain said active substance by surface tension from flowing under gravity from said reservoir; an outlet channel extending from said outlet side and being in direct communication with said at least one aperture; and ramp surfaces on said body section to direct said stream of water toward said outlet channel, wherein in use, said stream of water is directed into said outlet channel and into contact with said outlet side of said flow restrictor, overcomes said surface tension and effects the release of a dose of said viscous active substance from said reservoir.