Cream-state fluid container

Claim 1

A cream-state fluid container comprising: a body capable of being reduced in interior volume by evacuating the interior thereof in negative pressure, a head mounted at the top of said body and having a pushbutton and a filling port, a pump unit internally mounted in said head and operated by the pushbutton of said head for discharging the content of said body to the filling port of said head, said pump unit having a valve mechanism including a suction valve and a discharge valve in such a manner that a valve body is seated on a cylindrical valve seat formed in said head, a pressure chamber formed in a space from said valve mechanism at the position above said valve mechanism, and an elastic cap capable of being elastically deformed by depressing said cap by said pushbutton, said valve mechanism further comprising a dish-shaped lower base plate engaged fixedly with the peripheral wall of said head from the mimimum-diameter portion of said body, a cylindrical valve seat erected to communicated with said body at the rear part of the base plate, an upper base plate arranged in engagement with a frame and a plate member on the base plate in such a manner that the frame is engaged with the peripheral wall in said head and the plate member is perforated with a through hole formed corresponding to the valve seat of the base plate at the rear part thereof, and another cylindrical valve seat having a size of substantially 1/2 of the valve seat in the length in communication with the upper part thereof at the front part thereof and depending downwardly at the front part thereof for supporting the base of a valve body formed of a soft synthetic resin (or rubber) with the both base plates wherein the former base has two small cylinders aligned in parallel with each other and engaged with the outer peripheries of the both valve seats as well as both valves are respectively disposed on the both seats in the shape of cantilever at the end faces of the both seats and wherein a suction valve is formed at one side and a discharge valve is formed at the other, and a space formed between the base plates is formed to communicate as a discharge passage with the port.