|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 3 인용 특허 : 3|
A piston for a pressurized container (i.e., “aerosol can”), the piston including a body having circumferential fins, with the fins being of uniform thickness, decreasing thickness radially away from the body, or varying thickness circumferentially. Further disclosed are container precursors and containers incorporating such a piston, and methods of filling and dispensing from such containers.
1. A container precursor suitable for making a pressurized product dispensing container, the precursor comprising: a hollow cylindrical body with a top end suitable for receiving a valved cap, and a bottom end suitable for receiving a bottom wall, defining a reservoir; and, a piston positioned within the reservoir, dividing the reservoir into an upper product containing chamber, and a lower propellant containing chamber, wherein the piston comprises a body and at least one fin circumferentially positioned around the body, wherein the fin is of unifo...