# US 5,699,669 A · Air-circulating base for bottled water cooling and dispensing apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,699,669 A
- Document ID: US5699669A
- Status: Granted
- Kind: A
- Application number: 08/680,373
- Filed: 1996-07-15
- Granted: 1997-12-23
- Earliest claimed: 1996-07-15
- Inventors: Albert W. Gebhard
- Web page: https://patentgrep.com/patent/US5699669A

## CPC

- B67D 3/0009: {provided with cooling arrangements (cooling perse F25)}
- B67D 3/0035: {the bottle or container being held upside down and not provided with a closure, e.g. a bottle screwed onto a base of a dispenser}
- B67D 3/0038: {the liquid being stored in an intermediate container prior to dispensing}
- F25B 21/02: using Peltier effect; using Nernst-Ettinghausen effect
- F25B 2321/0251: by a gas
- B67D: DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR (cleaning pipes or tubes or systems of pipes or tubes B08B9/02; emptying or filling of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for B67C; water supply E03; pipe systems F17D; domestic hot-water supply systems F24D; measuring volume, volume flow, mass flow or liquid level, metering by volume G01F; coin-freed or like apparatus G07F)
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS

## Abstract

A water cooler and dispenser employs a ceramic crock containing a thermoelectric unit and an upwardly directed chilling probe extending into a chilling tank. The chilling probe is in heat-conducting relation to a heat sink, underneath which is a circulating fan. A circulating base is made up of a series of support fins arranged in a radial fashion in the bottom of the crock having a specialized arrangement of inlet and outlet ports. The air is circulated upwardly across the heat sink then circulated downwardly and expelled from the crock. In a conventional manner, water is drawn from the lower end of the chilling tank through a spigot extending to the exterior of the crock.

## Claims

### Claim 1

In water cooling and dispensing apparatus having an insulated chilling tank, and an air circulating fan unit beneath said chilling tank, the improvement comprising:
an air-circulating base mounted beneath said apparatus having upper and lower generally circular mounting plates, a plurality of vertically extending fins arranged at circumferentially spaced intervals between said mounting plates, means connecting said mounting plates to said fins with said mounting plates disposed in horizontal, spaced parallel relation to one another and with passageways formed between said fins in communication with openings in said upper mounting plates, first and second dividing walls interposed between said plates in diametrically opposed relation to one another and separating said passageways into diametrically opposed inlet ports through which outside air can be drawn upwardly into said apparatus and diametrically opposed outlet ports displaced 90 degrees from said inlet ports through which air can be expelled from said apparatus.

### Claim 2

In water cooling and dispensing apparatus having an insulated chilling tank, a thermoelectric unit and heat sink disposed beneath said chilling tank, and a fan unit disposed beneath said heat sink, the improvement comprising:
a generally circular air-circulating base disposed beneath said heat sink, said base comprising a first plate, at least one inlet port through which said outside air is drawn upwardly and across said heat sink by operation of said fan unit, thereby removing heat from said heat sink, at least one outlet port displaced 90 degrees from said inlet port through which said air is expelled from said apparatus by operation of said fan unit, first and second dividing walls extending upwardly from said plate and separating said inlet and said outlet ports, each of said walls defining one of said outlet ports, and a plurality of fins extending upwardly from said plate and spaced circumferentially across each of said inlet and said outlet ports, said fins defining a plurality of air-circulating passageways.

### Claim 3 (depends on 2)

In apparatus according to claim 2, wherein said air-circulating base includes a second plate, said second plate disposed above said air circulating base and having a plurality of openings therethrough, said openings aligned with said inlet and said outlet ports.

### Claim 4 (depends on 3)

In apparatus according to claim 3 wherein one of said openings is a central opening having a gasket placed therein thereby forming a seal between said bottom plate and said fan unit.

### Claim 5 (depends on 3)

In apparatus according to claim 3 wherein said divider walls and said fins extend upwardly to said bottom plate thereby substantially supporting said apparatus.

### Claim 6 (depends on 2)

In apparatus according to claim 2 wherein said inlet and outlet ports and said fins are radially arranged about the circumference of said base plate.

### Claim 7 (depends on 2)

In apparatus according to claim 2 wherein said inlet ports are diametrically opposed from one another about said base plate.

### Claim 8 (depends on 2)

In apparatus according to claim 2 wherein said outlet ports are diametrically opposed from one another about said base plate.

### Claim 9 (depends on 2)

In apparatus according to claim 2 wherein each of said divider walls is generally U-shaped in configuration and has a greater thickness than that of each said fin.

### Claim 10 (depends on 3)

In apparatus according to claim 3 wherein said base plate is secured to said bottom plate by a plurality of fasteners arranged about the outer circumference of said base plate.

### Claim 11

In a water cooling and dispensing apparatus having an insulated chilling tank, and an air circulating fan unit beneath said chilling tank, the improvement comprising:
a circulating base having a generally circular plate, at least one inlet port through which outside air is drawn into said apparatus, at least one outlet port displaced 90 degrees from said inlet port through which said air is expelled from said apparatus, first and second dividing walls extending upwardly from said plate and separating said inlet and said outlet ports, and a plurality of fins extending upwardly from said plate and spaced circumferentially across each of said inlet and said outlet ports, said fins defining a plurality of air-circulation passageways, said apparatus supported on said fins and said dividing walls.

### Claim 12 (depends on 11)

In apparatus according to claim 11 wherein said inlet and said outlet ports and said fins are radially arranged about the circumference of said base plate.

### Claim 13 (depends on 11)

In apparatus according to claim 11 wherein said divider walls and said fins extend upwardly to a bottom plate in the lower end of said apparatus.

### Claim 14 (depends on 13)

In apparatus according to claim 13 wherein said bottom plate has a plurality of openings therethrough, said openings aligned with said inlet and said outlet ports.

### Claim 15 (depends on 14)

In apparatus according to claim 14 wherein one of said openings is a central opening having a gasket placed therein thereby forming a seal between said bottom plate and said fan unit disposed in the lower end of said apparatus.

### Claim 16 (depends on 11)

In apparatus according to claim 11 wherein said inlet ports are diametrically opposed from one another about said base plate.

### Claim 17 (depends on 11)

In apparatus according to claim 11 wherein said outlet ports are diametrically opposed from one another about said base plate.

### Claim 18 (depends on 11)

In apparatus according to claim 11 wherein each of said divider walls is generally U-shaped in configuration and has a greater thickness than that of each said fin.