Patent ID: 6715521
Filing Date: 2004-04-06
Classification: A47K

Abstract:
A dispenser for a viscous substance, comprising:a housing; a reservoir for said viscous substance; pump means actuatable to discharge said substance from said reservoir; and lever means pivotally connected to said housing actuatable between a first at rest position; and a second pump actuating position, wherein pressing on said lever means using a receptacle intended to receive said viscous substance thereon moves said lever means from said first to said second positions thereof to actuate said pump means and cause a discharge of said viscous substance, said pump means including a deformable bladder, said deformable bladder having sufficient elastic memory to return to its original configuration when no external pressure is applied thereto, an upper one way valve, said upper one way valve configured to allow flow of the viscous substance into said deformable bladder only, a lower one way valve, said lower one way valve configured to allow flow of the viscous substance out of said deformable bladder only, and deforming means operatively associated with said lever means and being disposed to deform said bladder as said lever means are moved into said puma actuating position thereof, which reduces the volume of said bladder, causing said viscous substance therein to discharge out of said lower one way valve, and whereby said lever means moving into said at rest position thereof allows said bladder to return to its said original configuration, which increases its internal volume, said increase in volume drawing the viscous substance into said bladder through said upper one way valve.