Single dose dispenser having a piercing member
First Claim
1. A unit-dose dispenser for manual discharge of a single dose of a flowable substance in the form of a spray, comprising a casing which has a nozzle and two shoulders, one on either side of this nozzle, the nozzle having a piston member extending inwardly from and outlet opening, the piston member having at least one discharge channel, a container of the substance to be discharged being operatively positioned with respect to the piston member, and a seal being arranged across the container to seal in all the substance to be discharged, the piston member having a piercing member which extends towards the seal, whereby on pressing the container onto the piston member the seal is pierced to allow the contents of the container to be expelled along the discharge channel and out through the outlet opening in the form of the spray.
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Accused Products
Abstract
The application describes a dispenser for manual discharge of a single dose of a flowable substance, comprising a casing (1) which has a nozzle (2) and a pair of shoulders (3) aside the nozzle. The nozzle (2) has a piston member (5) extending inwardly from an outlet opening (9), the piston member having at least one discharge channel. A container (10) of the substance to be discharged is mounted on the piston member (5), and a seal (12) is arranged across the container (10) to seal in all the substances to be discharged. The piston member (5) has a piercing member (8) which extends towards the seal (12), whereby on pressing the container (10) on to the piston member (5) the seal (12) is pierced to allow the contents of the container (10) to be expelled along the discharge channel and out through the outlet opening (9).
176 Citations
20 Claims
- 1. A unit-dose dispenser for manual discharge of a single dose of a flowable substance in the form of a spray, comprising a casing which has a nozzle and two shoulders, one on either side of this nozzle, the nozzle having a piston member extending inwardly from and outlet opening, the piston member having at least one discharge channel, a container of the substance to be discharged being operatively positioned with respect to the piston member, and a seal being arranged across the container to seal in all the substance to be discharged, the piston member having a piercing member which extends towards the seal, whereby on pressing the container onto the piston member the seal is pierced to allow the contents of the container to be expelled along the discharge channel and out through the outlet opening in the form of the spray.
- 11. A unit-dose dispenser for manual discharge of a single dose of a flowable substance in the form of a spray, comprising a casing which contains a nozzle and two shoulders, one on either side of the nozzle, the nozzle incorporating a piston member extending inwardly from an outlet opening, the piston member having at least one discharge channel, and a container of the substance to be discharged being operatively positioned with respect to the piston member and within the casing, wherein a seal is arranged across the container to seal in all the substance to be discharged, and wherein the piston member has a piercing member which extends towards the seal, whereby on pressing the container onto the piston member the seal is pierced to allow the contents of the container to be expelled along the discharge channel and out through the outlet opening in the form of a spray.
Specification