Ernest B. Kuhl - Pennsville NJ George R. Long - Newark DE Juleen A. Mitchell - Wilmington DE Richard S. Jenkins - Kennett Square PA Henry R. Wolfe - Newark DE Gerard F. Malone - Marlton NJ
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C12M 116
US Classification:
435299
Abstract:
A cartridge is formed of two parts which form an outlet valve at the lower end. The valve is opened or closed by relative rotation of the parts.