Foam dispenser
First Claim
1. A foam dispenser for use with a container containing soap or other liquid comprising:
- a rotary soap pump having a soap inlet and a soap outlet wherein the inlet is operably connectable to the container, a rotary air pump having an air inlet and an air outlet;
a mixing chamber in flow communication with the air outlet and the soap outlet, the mixing chamber having an outlet;
a porous membrane downstream of the mixing chamber, whereby an air and soap mixture that passes through the mixing chamber outlet passes through the porous membrane thereby producing foam; and
a drive means operably connected to the rotary soap pump and the rotary air pump.
1 Assignment
0 Petitions
Accused Products
Abstract
A foam dispenser is for use with a container containing soap or other liquid. The device includes a rotary soap pump, a rotary air pump, a mixing chamber, a porous membrane and an actuator or driver. The rotary soap pump has a soap inlet and a soap outlet and the soap inlet is operably connectable to the container. The rotary air pump has an air inlet and an air outlet. The mixing chamber is in flow communication with the air outlet and the soap outlet and the mixing chamber has an outlet. The porous membrane is positioned such that an air and soap mixture that passes through the mixing chamber outlet passes through the porous membrane thereby producing foam. The actuator or driver is operably connected to the rotary soap pump and the rotary air pump.
70 Citations
24 Claims
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1. A foam dispenser for use with a container containing soap or other liquid comprising:
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a rotary soap pump having a soap inlet and a soap outlet wherein the inlet is operably connectable to the container, a rotary air pump having an air inlet and an air outlet;
a mixing chamber in flow communication with the air outlet and the soap outlet, the mixing chamber having an outlet;
a porous membrane downstream of the mixing chamber, whereby an air and soap mixture that passes through the mixing chamber outlet passes through the porous membrane thereby producing foam; and
a drive means operably connected to the rotary soap pump and the rotary air pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A rotary foam dispenser for producing and dispensing foam comprising:
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a container for containing a liquid;
a rotary soap pump having a soap inlet and a soap outlet wherein the inlet is operably connectable to the container;
a rotary air pump having an air inlet and an air outlet;
a mixing chamber in flow communication with the air outlet and the soap outlet having an outlet;
a porous membrane downstream of the mixing chamber, whereby an air and soap mixture that passes through the mixing chamber outlet passes through the gauze thereby producing foam;
a drive means operably connected to the rotary soap pump and the rotary air pump; and
a housing having an interior and the container, the soap pump, the air pump, the mixing chamber are housed within the housing interior. - View Dependent Claims (14, 15, 16, 17, 18, 19, 21, 22, 23, 24)
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20. A rotary foam dispenser as claimed in claim 20 wherein each vane pump has a plurality of vanes spaced around a drive wheel.
Specification