|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||222/396 ; 222/399|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 9 인용 특허 : 4|
An apparatus for dispensing product from a container in which first and second members are provided in a vessel which is disposed in the container. The first member defines with the vessel a first chamber, and the second member defines with the first member a second chamber. One of the members moves in response to the pressure in the container to a first position relative to the other member and pressure is exerted in the second chamber on said first member to move it to a second position in response to the pressure in the container decreasing below the ...
Apparatus for maintaining a constant predetermined pressure in a pressurized container for dispensing product contained in the container from the container at said constant pressure, said apparatus comprising: a vessel disposed in said container, a cylinder member disposed in said vessel and defining with said vessel a first chamber for containing pressurized gas; a piston member disposed in said vessel and defining with said cylinder member a second chamber; one of said members being exposed to the pressure in said container for moving to a first positi...