公开(公告)号：US3346146A

公开(公告)日：1967-10-10

申请号：US53022066

申请日：1966-02-25

Applicant: SCHERING CORP

Inventor： THOMPSON ROBERT E

IPC: B05B7/00 ,  B05B11/04 ,  B65D47/18

CPC classification number: B65D47/18 ,  B05B7/0037 ,  B05B11/043

公开(公告)号：US3361304A

公开(公告)日：1968-01-02

申请号：US53021966

申请日：1966-02-25

Applicant: SCHERING CORP

Inventor： THOMPSON ROBERT E

IPC: A61M11/00 ,  B05B7/00 ,  B05B11/04

CPC classification number: A61M11/00 ,  B05B7/0037 ,  B05B11/043

公开(公告)号：US3622049A

公开(公告)日：1971-11-23

申请号：US3622049D

申请日：1969-05-05

Applicant: SCHERING CORP

Inventor： THOMPSON ROBERT E

IPC: B05B9/04 ,  B05B1/30 ,  B05B7/00 ,  B05B11/04 ,  B05B11/06 ,  B65D47/06 ,  B65D83/14 ,  B67D5/58

CPC classification number: B05B11/043 ,  B05B1/3026 ,  B05B7/0037 ,  B65D83/14

Abstract: A dispenser for dispensing foamable formulations. The liquid is placed in the container portion and exits through a nozzle in the form of a foam. When the walls of the container are squeezed, or when a pressurized gas is introduced, air within it and also the liquid is forced upwardly through a porous member and is mixed, thereby producing foam. After each dose or charge has been dispensed, replacement air enters through a vent, with that portion of the foam which is in the nozzle acting as a valve to prevent reentry of the foam into the interior of the dispenser.