Ice-water dripping-rate adjuster for drip-type ice coffee maker

1. An ice-water dripping-rate adjuster for drip-type ice coffee maker, comprising:

a dripping valve means for adjusting a dripping rate of ice water for making drip-type ice coffee, including an upper valve member, and a lower valve member;

an upper coupling member including a basin circumferentially disposed about said upper valve member, adapted for mounting an ice or ice water container on said basin for storing ice and ice water in said ice or ice water container; with said upper valve member axially secured in said basin for draining ice water inwardly and downwardly into said lower valve member;

a lower coupling member including a socket member circumferentially disposed about said lower valve member, with said lower valve member axially secured in said socket member, said socket member rotatably engageable with said basin of said upper coupling member for opening or closing said dripping valve means and adapted for mounting a coffee jug under said socket member, with said coffee jug including a ground coffee canister mounted in an upper portion of said coffee jug and secured under said dripping valve means, whereby the ice water is downwardly dripped and controlled by said dripping valve means and downwardly dripped through said canister to brew coffee which is received in said coffee jug,

wherein said ice or ice water container is mounted inside said basin of said upper coupling member, and said coffee jug is mounted inside said socket member of said lower coupling member, and

wherein one of said upper coupling member and said lower coupling member is moved directly in rotation relative to another to control said dripping valve means.

2. The ice-water dripping-rate adjuster according to claim 1 , wherein said basin of said upper coupling member includes an upper cavity formed in an upper portion of said basin adapted to be secured with said ice or ice water container; and said socket member of said lower coupling member includes a lower cavity formed in a lower portion of said socket member adapted to be secured with said coffee jug.

3. The ice-water dripping-rate adjuster according to claim 1 , wherein said upper valve member of said dripping valve means includes a sheath axially formed in said basin of said upper coupling member, having an outer horizontal hole formed through said sheath for draining ice water from said ice or ice water container into said lower valve member; and said upper valve member is secured to or formed with said basin of said upper coupling member.

4. The ice-water dripping-rate adjuster according to claim 3 , wherein said upper valve member is integrally formed with said basin.

5. The ice-water dripping-rate adjuster according to claim 3 , wherein said upper valve member is secured to said basin by forming a male-threaded portion on said upper valve member to be engaged with a female-threaded hole formed in said basin.

6. The ice-water dripping-rate adjuster according to claim 1 , wherein said lower valve member includes: a valve stem formed in said socket member of said lower coupling member, a vertical hole formed in said valve stem, an inner horizontal hole formed through an upper portion of said valve stem and fluidically communicated with said vertical hole in said valve stem, a packing sleeve jacketed on an upper portion of the valve stem to be positioned between the valve stem and a sheath of said upper valve member and having a middle horizontal hole formed through said packing sleeve to be fluidically communicated with an outer horizontal hole formed in said sheath of said upper valve member when opening said dripping valve means to drain or drip the ice water downwardly to be controlled by said dripping valve means for adjusting the dripping rate of ice water, which is then dripped through said canister into said coffee jug.

7. The ice-water dripping-rate adjuster according to claim 6 , wherein said valve stem is integrally formed with said socket member of said lower coupling member.

8. The ice-water dripping-rate adjuster according to claim 6 , wherein said valve stem is formed with a male-threaded portion to be engaged with a female-threaded hole formed in said socket member of said lower coupling member.

9. The ice-water dripping-rate adjuster according to claim 6 , wherein said valve stem is formed with a flange groove therein to be engaged with a flange circumferentially formed on the packing sleeve as jacketed on said valve stem.

10. The ice-water dripping-rate adjuster according to claim 6 , wherein said valve stem includes a flat or secant surface portion formed on a top portion of said stem to be engaged with a corresponding flat surface portion formed on said packing sleeve to prevent a free rotation of said packing sleeve on said valve stem.

11. The ice-water dripping-rate adjuster according to claim 1 , wherein said basin of said upper coupling member includes a shaft which is formed with an annular groove concentrically formed in said shaft, with said shaft protruding downwardly from said basin; and a retaining pin formed in said socket member of said lower coupling member and inserted into said annular groove in said shaft for rotatably limiting said shaft of said basin for preventing separation of said upper coupling member from said lower coupling member.

12. The ice-water dripping-rate adjuster according to claim 11 , wherein said retaining pin is selected from a limiting bolt protruding inwardly into said annular groove; or a resilient retaining pin having a tensioning spring resiliently urging said pin inwardly through said annular groove, said limiting bolt or said resilient retaining pin inserted into said annular groove for preventing separation of said upper and lower coupling members as rotatably coupled with each other.