A liquid discharge pump possesses a resinous bellows material 6, a resinous inflow valve mechanism 4, a resinous outflow valve mechanism 5, a first pressing portion 11 which moves a valve portion in the outflow valve mechanism 5 to open the inflow valve mechanism when a nozzle head 2 is pressed, and...http://www.google.com/patents/US7025233?utm_source=gb-gplus-sharePatent US7025233 - Fluid discharge pump for discharging fluid stored inside fluid storing portion
