Multicomponent cartridge for single use

Patent metadata

Field	Value
Publication number	US-9616454-B2
Application number	US-65854010-A
Country	US
Kind code	B2
Filing date	Feb 9, 2010
Priority date	Feb 13, 2009
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A multicomponent cartridge which is designed for single use includes two separate supply chambers arranged coaxially of each other and two pistons. The two pistons are movable via a plunger to simultaneously discharge two components. A guide element guides the two pistons in the respective supply chambers and contains a discharge opening for discharging the first component. The guide element is movable relative to a housing via a movement element in order to open the discharge opening.

First claim

What is claimed is:

1. A multicomponent cartridge comprising
a first supply chamber for a first component;
a second supply chamber separate from said first supply chamber for a second component and arranged coaxially within said first supply chamber:
a first piston movably arranged in said first supply chamber;
a second piston movably arranged in said second supply chamber;
a plunger for simultaneously moving said first piston and said second piston to simultaneously discharge the two components;
a guide element for guiding said first piston in said first supply chamber and for guiding said second piston in said second supply chamber, said guide element having a discharge opening for discharging the first component out of said first supply chamber,
a housing receiving said guide element;
a movement element for moving said guide element relative to said housing to form a gap between said housing and said guide element and to open said discharge opening for passage of the first component out of said first supply chamber into said gap; and
a housing element receiving said plunger and formed as one piece with said plunger.

2. A multicomponent cartridge in accordance with claim 1 further comprising a predetermined breaking point between said plunger and said housing element.

3. A multicomponent cartridge in accordance with claim 2 wherein said plunger is movable relative to said housing element in response to a force being applied to said plunger to break said breaking point when a discharge of the first component and the second component should be effected.

4. A multicomponent cartridge in accordance with claim 1 further comprising an engagement element connecting said guide element to said housing element.

5. A multicomponent cartridge in accordance with claim 4 wherein said engagement element includes a spring element.

6. A multicomponent cartridge in accordance with claim 5 wherein said spring element is formed as a projection at a perimeter of said guide element.

7. A multicomponent cartridge in accordance with claim 6 wherein said spring element engages into a recess in said housing element whereby said housing element is rotationally fixedly connected to said guide element.

8. A multicomponent cartridge comprising
a first supply chamber for a first component;
a second supply chamber separate from said first supply chamber for a second component and arranged coaxially within said first supply chamber:
a first piston movably arranged in said first supply chamber;
a second piston movably arranged in said second supply chamber;
a plunger for simultaneously moving said first piston and said second piston to simultaneously discharge the two components;
a guide element for guiding said first piston in said first supply chamber and for guiding said second piston in said second supply chamber, said guide element having a discharge opening for discharging the first component out of said first supply chamber,
a housing receiving said guide element;
a movement element for moving said guide element relative to said housing to form a gap between said housing and said guide element and to open said discharge opening for passage of the first component out of said first supply chamber into said gap; and
wherein said guide element includes a vent element.

Assignees

• Staub Andreas
• Leue Percy
• Sulzer Mixpac Ag

Inventors

• Staub Andreas
• Leue Percy

Classifications

• A61C5/064

  Human Necessities · mapped topic

• B05C17/00576

  characterised by the construction of a piston as pressure exerting means, or of the co-operating container · CPC title

• A61B2017/00495

  for two-component glue · CPC title

• B05C17/00559

  the different components being stored in coaxial chambers · CPC title

• B05C17/0146

  comprising a valve in the proximity of the nozzle that is not actuated by pressure, e.g. manually actuated · CPC title