Liquid dispenser

A dispenser for discharging liquid materials comprising:

• a back portion;
• a cover hingedly connected to said back portion and including a top wall, side walls, a front wall having a cutout section;
• and a bottom wall having an opening therein;
• a reservoir for containing the liquid, said reservoir removably mounted within the dispenser;
• a flexible tube connected at its upstream end to the reservoir and containing a nozzle tip at its downstream end projecting through the opening of the bottom wall;
• support means for supporting the reservoir and for retaining the flexible tube;
• a push bar movably connected to the support means and projecting through the cutout section of the front wall, said push bar comprising an internally disposed extension having an open notch;
• a Y-shaped cam rotatable on a pivot pin, said cam comprising a leg bearing a button positioned in the open notch of the push bar extension;
• a roller positoned on an arm of the Y-shaped cam, said roller selectively engaging the flexible tube;
• and
• a spring positioned on the other arm of the Y-shaped cam connecting said cam to the push bar extension;
• whereby actuation of the push bar progressively urges the roller into contact with the flexible tube and moves said roller from the upstream end of said tube to the downstream end thereof in order to discharge liquid through the nozzle, and whereby the spring urges said roller back to its original position.