Abstract: The refrigeration system of this invention utilizes a water cooled condenser which is made of multiple water pans with refrigeration coil soldered underneath for multi-stages cooling. The water pans are stacked on top of each other with the hottest coil located at the bottom. The bottom water pan dries up water faster than the other water pans since it has the hottest coil soldered underneath. Once the water level of the bottom water pan is low enough to be refilled, the supply water fills in from the top water pan and propagating downward to the water pan down below until it reaches the water pan at the bottom. The water refilling ceases once the bottom water pan is full. The unwanted heat from a refrigeration system is transferred from the refrigerant to the water, and then from the water to the air by evaporation.

Abstract: This invention is a water and pet food dispenser equipped with a non-power consumption water dispenser and a power consumption pet food dispenser. The water dispenser siphons water from a storage container to a water feeding bowl. Pet food is dispensed from a storage container by vibration, utilizing the weight and time sensing components to control pet food to be dispensed in the exact quantity at the exact time as predetermined. The exact quantity is monitored by a weighing scale and the exact time is controlled by a timer. The feeding cycle repeats as soon as the electrical timer turns on electrical power supply.

Abstract: This invention is a water cooled refrigeration system which is equipped with an evaporative condenser comprising of multiple water pans with refrigeration coil soldered underneath for multi-stages cooling. The water pans are stacked on top of each other with the hottest coil located at the bottom. The bottom water pan dries up water faster than the other water pans since it has the hottest coil soldered underneath. Once the water level of the bottom water pan is low enough to be refilled, the supply water fills in from the top water pan and propagating downward to the water pan down below until it reaches the water pan at the bottom. The water refilling ceases once the bottom water pan is full. The unwanted heat from a refrigeration system is transferred from the refrigerant to the water, and then from the water to the air by evaporation.

Abstract: This invention is a water and pet food dispenser equipped with a non-power consumption water dispenser and a power consumption pet food dispenser. The water dispenser siphons water from a storage container to a water feeding bowl. Pet food is dispensed from a storage container by vibration, utilizing the weight and time sensing components to control pet food to be dispensed in the exact quantity at the exact time as predetermined. The exact quantity is monitored by a weighing scale and the exact time is controlled by a timer. The feeding cycle repeats as soon as the electrical timer turns on electrical power supply.

Abstract: The refrigeration recovery system equips with a refrigerated container to cool the recovery tanks in order to have a desirable low pressure inside the recovery tank. This method is essential to accelerate the recovery speed and to achieve a complete recovery of refrigerants.