Primary cell

Claim 1

A PRIMARY CELL COMPRISING A COMPOSITE CUP OF TUBULAR CROSS SECTIONAL CONFIGURATION, SAID CUP HAVING A STEEL BOTTOM WHICH IS A TERMINAL ELECTRODE OF SAID CELL AND HAVING SIDE WALLS OF VAPOR RESISTANT PAPER, THE SIDE WALL OF SAID CUP BEING JOINED TO THE BOTTOM OF THE CUP BY A VAPOR RESISTANT ROOLED SEAL, A HOLLOW, CYLINDRICALLY SHAPED MAGNEISUM ANODE OF SMALLER OUTER DIAMETER THAN THE INNER DIAMETER OF SAID SIDE WALLS DISPOSED WITHIN SAID IN LOOSE FITTING RELATIONSHIP WITH THE SIDE WALL OF SAID CUP, A STEEL STRIP, SAID STRIP BEING WELDED TO SAID ANODE AND BEING PART OF SAID STRIP EXTENDING FROM SAID ANODE AND BEING WELDED TO SAID STEEL BOTTOM, THE LOWER EDGE OF SAID ANODE BEING DISPOSED AT LEAST NEAR TO THE BOTTOM OF SAID CUP, A LAYER OF ELECTRICALLY INSULATING, VAPOR RESISTANT MATERIAL DISPOSED BETWEEN AND ADHERING TO THE WALL AND SEAL OF SAID CUP, A CARBON CATHODE ELECTRODE DISPOSED IN SAID CUP WITH ONE END PROJECTING BEYOND THE ANODE, THE CUP, A CATHODE DEPLORIZING MIXTURE COMPRISING MANGANESE DIOXIDE AND CARBON BLACK MOISTENED WITH AN AQUEOUS ELECROLYTE, THE MIXTURE BEING INTERPOSED BETWEEN THE CATHODE ELECTRODE AND THE ANODE, AND A VAPOR SEAL EXTENDING BETWEEN THE PART OF SAID CATHODE ELECTRODE WHICH EXTENDS ABOVE THE ANODE AND THE WALL OF THE CUP.