Hand-held beverage dispenser
A hand-held beverage dispenser includes a handle body, within which multiple valve units are contained. Two sets of fluid flow paths are provided into the handle body. The sets of fluid flow paths are mutually exclusive one to the other. Each flow path of the first set is in fluid communication with each valve unit, whereas only a predetermined one of the second set of fluid flow paths is in fluid communication with each valve unit. Each valve unit includes a flow control valve and a selector valve. The selector valve determines on an ad hoc basis which of the first set of flow paths will be utilized at any given time, while the flow control valve provides single action simultaneous ON-OFF control of fluid flows through both the selected flow path and the predetermined flow path. A failsafe ensures correct operation of the selector valve of each valve unit.
1. A valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser, said valve arrangement comprising:
a valve unit including a composite valve trim assembly substantially contained within a hand-held beverage dispenser;
a plurality of flow paths to said valve unit and a fixed flow path from said valve unit;
wherein said composite valve trim assembly is adapted to:
establish passage into said valve unit of a user selectable one of said plurality of flow paths;
block passage into said valve unit of each said plurality of flow paths other than said one of said plurality of flow paths; and
establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit; and
wherein establishment of passage into said valve unit of a user selectable one of said plurality of flow paths is functionally independent of establishment of passage to said fixed flow path of said one of said plurality of flow paths.
2. The valve arrangement as recited in claim 1 , wherein said composite valve trim assembly implements a poppet-type valve adapted to establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit.
3. The valve arrangement as recited in claim 1 , said valve arrangement further comprising:
a dedicated flow path to said valve unit and a dedicated flow path from said valve unit; and
wherein said composite valve trim assembly is adapted to establish passage from said dedicated flow path to said valve unit to said dedicated flow path from said valve unit.
4. The valve arrangement as recited in claim 3 , wherein said composite valve trim assembly implements a gate valve adapted to establish passage into said valve unit of a user selectable one of said plurality of flow paths and block passage into said valve unit of each said plurality of flow paths other than said one of said plurality of flow paths.
5. The valve arrangement as recited in claim 4 , wherein said gate valve includes a cylindrical valve gate.
6. The valve arrangement as recited in claim 5 , wherein said gate valve is rotationally operated.
7. The valve arrangement as recited in claim 4 , wherein said composite valve trim assembly implements a linked set of poppet-type valves adapted to concurrently establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit and to establish passage from said dedicated flow path to said valve unit to said dedicated flow path from said valve unit.
8. The valve arrangement as recited in claim 3 , wherein said composite valve trim assembly implements a linked set of poppet-type valves adapted to concurrently establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit and to establish passage from said dedicated flow path to said valve unit to said dedicated flow path from said valve unit.
9. A valve arrangement for selectively establishing beverage fluid flow paths through a hand-held beverage dispenser, said valve arrangement comprising:
a valve unit including a composite valve trim assembly substantially contained within a hand-held beverage dispenser;
a plurality of flow paths to said valve unit and a fixed flow path from said valve unit;
wherein said composite valve trim assembly implements a gate valve adapted to:
establish passage into said valve unit of a user selectable one of said plurality of flow paths; and
block passage into said valve unit of each said plurality of flow paths other than said one of said plurality of flow paths;
wherein said composite valve trim assembly is adapted to establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit; and
wherein establishment of passage into said valve unit of a user selectable one of said plurality of flow paths is functionally independent of establishment of passage to said fixed flow path of said one of said plurality of flow paths.
10. The valve arrangement as recited in claim 9 , wherein said gate valve includes a cylindrical valve gate.
11. The valve arrangement as recited in claim 10 , wherein said gate valve is rotationally operated.
12. The valve arrangement as recited in claim 9 , wherein said composite valve trim assembly implements a poppet-type valve adapted to establish passage from said one of said plurality of flow paths to said fixed flow path from said valve unit.