Apparatus and method for dispensing a mixture of a gas and a fluid material
First Claim
Patent Images
1. An apparatus for dispensing a mixture of a pressurized gas and a fluid material, the apparatus comprising:
- a mixing device including a mixing chamber confining a stream of the fluid material and a mixer inside said mixing chamber, said mixer configured to combine the pressurized gas with the stream of the fluid material to form the mixture;
a dispenser coupled in fluid communication with said mixing chamber, said dispenser configured to receive and dispense the mixture; and
a gas injection device having a main body, a gas passage extending through said main body, an inlet to said gas passage that is configured to receive the pressurized gas, and a control orifice in said gas passage, a nozzle coupled with the main body and having an outlet coupling said gas passage in fluid communication with said mixing chamber of said mixing device, and a flow control element located in said gas passage between said inlet to said gas passage and said outlet from said nozzle, said control orifice configured to meter a flow rate of the pressurized gas to said outlet and into said mixing chamber, and said flow control element including a plunger, a seat between said inlet and said control orifice, and a biasing element applying a biasing force that urges said plunger into contact with said seat, said plunger movable relative to said seat to provide a first condition in which the pressurized gas can flow in said gas passage from said inlet through said control orifice to said outlet and a second condition in which the pressurized gas is blocked from flowing to said outlet.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and methods for generating and dispensing a mixture containing a pressurized gas and a fluid material. The apparatus includes a mixing device having a mixing chamber and a mixer inside the mixing chamber. A gas injection device, which is coupled with the mixing device, injects the pressurized gas into the fluid material in the mixing chamber. The mixer operates to combine the pressurized gas with the fluid material to form a mixture, which is subsequently dispensed from a dispenser coupled with the mixing device.
-
Citations
17 Claims
-
1. An apparatus for dispensing a mixture of a pressurized gas and a fluid material, the apparatus comprising:
-
a mixing device including a mixing chamber confining a stream of the fluid material and a mixer inside said mixing chamber, said mixer configured to combine the pressurized gas with the stream of the fluid material to form the mixture; a dispenser coupled in fluid communication with said mixing chamber, said dispenser configured to receive and dispense the mixture; and a gas injection device having a main body, a gas passage extending through said main body, an inlet to said gas passage that is configured to receive the pressurized gas, and a control orifice in said gas passage, a nozzle coupled with the main body and having an outlet coupling said gas passage in fluid communication with said mixing chamber of said mixing device, and a flow control element located in said gas passage between said inlet to said gas passage and said outlet from said nozzle, said control orifice configured to meter a flow rate of the pressurized gas to said outlet and into said mixing chamber, and said flow control element including a plunger, a seat between said inlet and said control orifice, and a biasing element applying a biasing force that urges said plunger into contact with said seat, said plunger movable relative to said seat to provide a first condition in which the pressurized gas can flow in said gas passage from said inlet through said control orifice to said outlet and a second condition in which the pressurized gas is blocked from flowing to said outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An apparatus for dispensing a mixture of a pressurized gas and a fluid material, the apparatus comprising:
-
a mixing device including a mixing chamber confining a stream of the fluid material and a mixer inside said mixing chamber, said mixer configured to combine the pressurized gas with the stream of the fluid material to form the mixture; a dispenser coupled in fluid communication with said mixing chamber, said dispenser configured to receive and dispense the mixture; and a gas injection device having a main body, a gas passage extending through said main an inlet to said gas passage that is configured to receive the pressurized gas, a nozzle coupled with the main body and having an outlet coupling said gas passage in fluid communication with said mixing chamber of said mixing device, and a flow control element located in said gas passage between said inlet to said gas passage and said outlet from said nozzle, and said flow control element including a plunger, a seat between said inlet and said control orifice, and a biasing element applying a biasing force that urges said plunger into contact with said seat, said plunger movable relative to said seat to provide a first condition in which the pressurized gas can flow in said gas passage from said inlet through to said outlet and a second condition in which the pressurized gas is blocked from flowing to said outlet. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
Specification