Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1995-05-30
1996-07-16
Kashnikow, Andres
Dispensing
With discharge assistant
Insertable cartridge or removable container
222389, 222399, B65D 8858
Patent
active
055359256
ABSTRACT:
A caulk dispenser device for use with conventional caulking cartridges and powered by expanding refrigerant liquid is disclosed. Expanding gases are released into a chamber defined in part by a housing and in part by the caulk cartridge, the plug or piston within the cartridge forming a boundary of the chamber. Discharge of the gas directly against the piston is avoided by the interposition of a deflector surface within the housing reducing the tendency of the caulk to increase in viscosity and bond to the walls of the cartridge or to tilt relative to the cartridge. The propellant liquid-gas material incorporates an increment (e.g. 5%) of perflurocarbon or like compound liquid at ambient temperatures which minimizes the cooling effect resulting from discharge of the gas. Preferably, the device is fabricated of material having a low thermal conductivity such as polymeric material to thereby reduce the cooling effect on the canister of propellant with resultant loss of pressure.
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Hinden Milton
Lyons John
Bomberg Kenneth
Duro Dyne Corporation
Kashnikow Andres
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