Back to results
US 11,938,506 B2Granted
Piston, cartridge, dispenser
AssigneeMedmix Switzerland AG
InventorsRichard Lavelanet, Hayden Turner
Life of this patent
Estimating the term…
Abstract
A piston for a support sleeve of a dispensing assembly, the piston has a substantially cylindrical outer shape and includes a piston body as well as first and second film bag retainers arranged at opposite sides of the piston body.
Claims18
A piston for a support sleeve of a dispensing assembly comprising a film bag cartridge, the piston comprising:
- an at least substantially cylindrical outer shape;
- a piston body;
- and
- first and second film bag retainers arranged at opposite sides of the piston body, the first and second film bag retainers formed from materials more flexible than a material of the piston body, or
- the first and second film bag retainers comprising components designed to be more flexible than parts of the piston body.
2 more elements
A piston for a support sleeve of a dispensing assembly comprising a film bag cartridge, the piston comprising:
- an at least substantially cylindrical outer shape;
- a piston body;
- and
- first and second film bag retainers arranged at opposite sides of the piston body, each of the first and second film bag retainer having a central part surrounded by a ring recess and a collar facing the central part, and at least the collar and the ring recess and a sidewall of the central part comprising three or more slots that extend from a radial outer side of the collar towards the central part of the first and second film bag retainer.
1 more element
A piston for a support sleeve of a dispensing assembly comprising a film bag cartridge, the piston comprising:
- an at least substantially cylindrical outer shape;
- a piston body;
- and
- first and second film bag retainers arranged at opposite sides of the piston body, each of the first and second film bag retainer having a central part surrounded by a ring recess and a collar facing the central part, and a surface of the collar facing the central part comprises one or more recess or one or more projection.
1 more element
Dependencies are inferred from the claim text.