Fish feeder

Claim 1

A FISH FEEDER ADAPTED TO BE MOUNTED ON A FISH TANK FOR CONTINUOUS DELIVERY OF FEED TO THE TANK OF A RATE OF PREDETERMINED VOLUME OF FISH FOOD PER GALLON PER DAY OF TANK WATER AND COMPRISING IN COMBINATION: A FEEDING AUGER DEFINED BY A SPIRAL VANE STRUCTURE EXTENDING FROM AN AXIAL SHAFT, THE CONTAINED VOLUME BETWEEN SAID VANES OVER A PITCH LENGTH HAVING REGARD TO THE DIAMETER THEREOF BEING EFFECTIVELY A SIMPLE MULTIPLE OF SAID PREDETERMINED VOLUME, THE LENGTH OF SAID AUGER DEFINING BETWEEN ABOUT 60 AND 120 AT LEAST OF SAID VOLUMES; A FEED STORAGE TUBE OF A LENGTH GENERALLY CORRESPONDING TO THE LENGTH OF SAID AUGER AND OF AN INNER DIAMETER SUBSTANTIALLY GREATER THAN THE DIAMETER OF SAID AUGER AND OF THE ORDER OF ABOUT 1 1/3 TIMES THE DIAMETER OF THE LATTER; A BEARING SURFACE ALONG SUBSTANTIALLY THE FULL LENGTH OF THE LOWERMOST SURFACE OF SAID INNER DIAMETER; AN ECCENTRIC BEARING JOINED TO AN END WALL PORTION ADAPTED TO ACCOMMODATE THE SHAFT OF SAID AUGER AND DEFINING AN END WALL FOR ONE END OF SAID TUBE THEREBY LOCATING SAID AUGER THEREIN IN A POSITION FOR SUPPORT OF SAID AUGER ON SAID BEARING SURFACE; MEANS FOR SUPPORTING SAID TUBE TO DISPOSE THE ECCENTRIC BEARING THEREOF AND SAID AUGER FOR A POSITION OF SAID ENGAGEMENT OF SAID AUGER WITH SAID TUBE THROUGHOUT ITS LENGTH UNDER THE ACTION OF GRAVITY; AND MEANS FOR ROTATING SAID SHAFT OF SAID AUGER CONTINUOUSLY AT A SPEED CONFORMING TO SAID PREDETERMINED VOLUME PER DAY RATE.