Method of and apparatus for controlled dispensing of two-part bonding, casting and similar fluids and the like
AssigneeStainless Steel Coatings, Inc.
InventorsIvan Gardos, Ivan Faigen
Life of this patent
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Abstract
A novel two-part fluid dispensing and technique using fluids of similar or widely different viscosities and in flexible plastic or similar cartridges of a similar or different volumes, and with adjustable dispensing ratios by forcing the fluids out of their respective cartridges in response to variable air pressure into a static mixer, and thence along a dispensing flexible pinch tube, the opening and closing of which is controlled by a pinch valve operated in response either to manual or micro-processor-controlled control.
Claims22
A method of dispensing two-part fluids of similar and different viscosities contained within respective flexible cartridges that comprises, fitting the cartridges side-by-side within a confining sleeve;
- simultaneously compressing the fluids in the cartridges in response to compressed air and into a common outlet;
- receiving the fluids at the outlet and statically mixing them;
- feeding the mixed fluids to and along a flexible pinch tube in varying degrees to control the dispensing, such that with tube pinched off, the cartridges and the respective fluids therein expand against the confining sleeve to a controlled and precise volume establishing a constant pressure during the entire dispensing, thereby insuring the correct volume ratio of the fluids in the cartridges;
- and varying the compressed air pressure and the dispensing ratios as desired.
A method as claimed in claimed 1 and in which the dispensing is selectively effected in each of manual, automatic and semi-automatic modes by respectively switching the compressed air in response to programmed microprocessor control, and applying the compressor air for so long as the switching remains in one position.
A two-part fluid dispenser apparatus having, in combination, a housing into which a pair of pre-loaded cartridges respectively containing the two fluid parts is received and provided with compressed air-activated push rod plungers for compressing the fluid parts in the cartridges;
- a static mixer connected to receive and mix the fluids as they are compressed out of the cartridge;
- a flexible pinch tube connected to receive the mixed fluids from the static mixer and to dispense the same;
- and a pinch valve having means disposed variably to pinch off the pinch tube to control the mixed fluid dispensing.
A two-part fluid dispenser apparatus having, in combination, a housing into which a pair of pre-loaded plastic cartridges respectively containing the two fluid parts is received, the housing being provided with push rod plungers for simultaneously compressing the fluid parts in the cartridges;
- a confining surface externally embracing both cartridges for holding the cartridges against distortion during the fluid compressing;
- and a static mixer connected to receive and mix the fluids as they are compressed out of the cartridges.
A two-part fluid dispenser apparatus having, in combination, a housing into which a pair of pre-loaded flexible plastic cartridges respectively containing the two fluid parts is received, the housing being provided with push rod plungers for simultaneously compressing the fluid parts in the cartridges;
- a two-part sleeve for receiving the pair of cartridges and then clampingly securing the pair of cartridges together in side-by-side rigid assembly, with the sleeve closely fitting and constraining the flexible plastic cartridge expansion against the sleeve, such that the pressure by the push rod plungers throughout their compressing of the fluid parts in the cartridges remains constant;
- and a static mixer connected to receive and mix the fluids as they are compressed out of the cartridges.
Dependencies are inferred from the claim text.