Syringes for dispensing multi-component material
First Claim
1. A syringe for dispensing a multi-component material, the syringe comprising:
- a syringe cartridge having a first end and a second end, and respective compartments for components of the multi-component material;
a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and
a plunger assembly that is movable into the syringe cartridge at the second end to dispense material from the first end;
wherein the connection between the static mixer and the first end of the syringe cartridge comprises a flow-directing mechanism configured to be selectively positioned between a venting position in which each of the cartridge compartments is cut off from the static mixer and at the same time is in communication independently with a respective venting outlet, and a dispensing position in which each of the cartridge compartments is in communication with the static mixer and at the same time is cut off from the respective venting outlet.
2 Assignments
0 Petitions
Accused Products
Abstract
A syringe for dispensing a multi-component material. The syringe can include a cartridge having a first end and a second end, and respective compartments for components of the multi-component material; a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and a plunger assembly that is movable into the syringe cartridge at the second end to dispense material from the first end. A connection between the static mixer and the first end of the syringe cartridge includes a flow-directing mechanism having a venting position in which the cartridge compartments are cut off from the static mixer and are in communication independently with respective venting outlets, and a dispensing position in which the cartridge compartments are in communication with the static mixer and are cut off from the venting outlets.
87 Citations
21 Claims
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1. A syringe for dispensing a multi-component material, the syringe comprising:
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a syringe cartridge having a first end and a second end, and respective compartments for components of the multi-component material; a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and a plunger assembly that is movable into the syringe cartridge at the second end to dispense material from the first end; wherein the connection between the static mixer and the first end of the syringe cartridge comprises a flow-directing mechanism configured to be selectively positioned between a venting position in which each of the cartridge compartments is cut off from the static mixer and at the same time is in communication independently with a respective venting outlet, and a dispensing position in which each of the cartridge compartments is in communication with the static mixer and at the same time is cut off from the respective venting outlet. - View Dependent Claims (2, 3, 4, 5, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21)
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6. A syringe for dispensing a multi-component material, the syringe comprising:
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a syringe cartridge having a first end and a second end, and respective compartments for components of the multi-component material; a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and a plunger assembly that is movable into the syringe cartridge at the second end for dispensing material from the first end; wherein the connection between the static mixer and the first end of the syringe cartridge comprises a flow-directing mechanism configured to be selectively positioned between a venting position in which each of the cartridge compartments is cut off from the static mixer and at the same time is in communication independently with a respective venting outlet, and a dispensing position in which each of the cartridge compartments is in communication with the static mixer and at the same time is cut off from the respective venting outlet; and wherein the syringe cartridge is formed, at one end, with entry ports through which components of the multi-component material can be loaded into the compartments from a supply cartridge, the entry ports having upstanding collars for sealing to respective outlets of the supply cartridge, at least a portion of each upstanding collar being formed to be located inside the respective outlet of the supply cartridge, whereby material is removed from within the outlets when the syringe is removed from the supply cartridge, wherein each collar comprises two cylinders, one cylinder being disposed around the other whereby it will be located around an outlet of the supply cartridge when the inner cylinder is located within the outlet. - View Dependent Claims (7, 8, 9, 10, 13)
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Specification