Abstract: A liquid dispenser is provided including a housing having an inlet port connectable to a liquid container, an outlet port configured to be in fluid communication with toilet tank, and a piston slidably mounted in the housing and selectively displaceable between a suction position in which the piston is displaced away from the inlet port thereby allowing suction of cleaning liquid through the inlet port and an injection position in which the piston is urged towards the outlet port thereby allowing cleaning liquid to be injected through the outlet port, and a float coupled to the piston and configured for displacement thereof to the suction position in response to a rising water level in the toilet tank.

Abstract: A liquid dispenser is provided including a housing having an inlet port connectable to a liquid container, an outlet port configured to be in fluid communication with toilet tank, and a piston slidably mounted in the housing and selectively displaceable between a suction position in which the piston is displaced away from the inlet port thereby allowing suction of cleaning liquid through the inlet port and an injection position in which the piston is urged towards the outlet port thereby allowing cleaning liquid to be injected through the outlet port, and a float coupled to the piston and configured for displacement thereof to the suction position in response to a rising water level in the toilet tank.

Abstract: A container-dispenser for products which are viscous fluids such as liquid soap, which allows one-handed operation to supply a controlled amount of viscous fluid in a convenient and clean way and protects the contents from exposure to air. The container body is equipped with a piston that applies constant pressure on the product within the container. By applying force on a valve from above, a passage is opened allowing the product to be dispensed through the top of the container. When the pressure on the valve is relieved, the opening is closed, preventing further dispensing of the product. Excess product is temporarily retained until needed in the “bowl” resulting from the convex shape of the top of the container.