Grease tank with anti-tipping follower

Abstract

A tank for transporting, storing, and dispensing viscous materials is disclosed having a cylindrical body, and spherical ends. The tank further comprises an ellipsoidal follower device used to force the viscous material through the tank, the follower device having an upper half, and lower half, and a centerline. A plurality of stabilizing fins are rigidly connected to the ellipsoidal follower device at the centerline and extending axially along the tank's inner wall, the stabilizing fins disposed between a periphery of the ellipsoidal follower device and an inner wall of the cylindrical body. The fins serve as an anti-tipping device to maintain the follower in the proper orientation even upon rested in a horizontal position.

I claim: 
     
         1 . A tank for transporting, storing, and dispensing viscous materials having a cylindrical body, and spherical ends, the tank further comprising:
 an ellipsoidal follower device having an upper half, and lower half, and a centerline;   a plurality of stabilizing fins rigidly connected to the ellipsoidal follower device at the centerline and extending axially, the stabilizing fins disposed between a periphery of the ellipsoidal follower device and an inner wall of the cylindrical body;   whereby a length of the stabilizing fins is equal to a height of the upper half and quarter depth of the lower half of the ellipsoidal follower device.   
     
     
         2 . The tank of  claim 1 , wherein the stabilizing fins number four and are equally spaced around a perimeter of the ellipsoidal follower device. 
     
     
         3 . The tank of  claim 2 , wherein the stabilizing fins have a depth that is four times less than a width.