Dispenser for media
AssigneeIng. Erich Pfeiffer GmbH
InventorKarl-Heinz Fuchs
Life of this patent
Estimating the term…
Abstract
A dispenser for dispensing a single dose of a powder medium is incorporated in an essentially hermetically sealed medium chamber with an essentially hermetically sealed compressed air pump. The pump chamber can be opened to the medium chamber through an inlet valve only after a first partial section of the pump stroke, whereupon the compressed air flow fluidizes the powder and expels it in a spurt to the dispenser outlet. A basic body forms an outer housing of elongated cross section with a freely accessible pump cylinder. The dispenser outlet can be easily gripped at the handles with which it is actuated.
Claims28
A dispenser for discharging two media, comprising:
- a medium chamber providing a medium boundary for receiving a first one of the media, and an auxiliary chamber providing a fluid boundary for receiving a fluid medium defining a second one of the media, and
- an operating unit having an operating shaft that traverses the medium chamber and is displaceable with respect to at least one of said chambers for injecting the second one of the media into said medium chamber and for expelling two media out of said medium chamber,
- wherein said operating unit extends between and separates said medium chamber and said auxiliary chamber, said operating unit providing said medium boundary and said fluid boundary.
A dispenser for discharging media comprising
- first and second dispenser units reciprocally displaceable by an operating pressure to perform a discharge motion of said dispenser,
- said dispenser units defining an initial operating state of said dispenser,
- wherein catch means are provided for holding said first and second dispenser unit, in sad initial operating state against said discharge motion, said catch means defining a force overcomable by increasing said operating pressure, thereby providing control means for initiating said discharge motion in a sudden spurt.
The dispenser for discharging media comprising:
- first and second dispenser units reciprocally displaceable to perform a discharge motion of said dispenser,
- said dispenser units defining an initial operating state,
- said second dispenser unit providing a fluid chamber bounded by a closure member displaceable with respect to said fluid chamber as a function of said discharge motion,
- wherein control means are provided for displacing said dispenser units out of said initial operating state over a first partial stroke, said closure member being displaced together with said second dispenser unit, said first partial stroke being followed by said discharge motion for displacing said closure member.
A dispenser for dispensing media, comprising:
- at least one medium chamber for receiving the media in an initial operating state of said dispenser,
- a cylinder that is axially movable to convey the medium under pressure from the medium chamber, and
- wherein at least one casing is provided that envelopes said medium chamber and said cylinder for receiving an agent provided to interact with the media in said medium chamber.
Dependencies are inferred from the claim text.