Dispensing – Processes of dispensing
Patent
1992-07-10
1993-11-30
Huson, Gregory L.
Dispensing
Processes of dispensing
222145, 222148, 239117, B67B 700
Patent
active
052657612
ABSTRACT:
A hand held dispenser for chemical foam compositions having enhanced service life and being capable of delivering higher outputs of foam products is provided. In accordance with the invention, a dispenser cartridge is mounted in sealed movable relation to a cartridge carrier. Reliable face to face compressible seals are employed to accomplish primary porting to pressurized sources of chemical components. The dispenser cartridge does not rely on a sealed interface between a cylindrical valving rod and a dimensionally unstable TEFLON.RTM. bushing for porting which provides improved sealing performance. Multiple porting from two or more pressurized sources of chemical components is also facilitated by the sliding seal feature.
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Huson Gregory L.
Insta-Foam Products Inc.
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