Air depolarized cell

Claim 2

AIR DEPOLARIZATION CELL COMPRISING A NEGATIVE ELECTRODE HAVING A ZINC BASE, AN ELECTROYTE, AND A POSITIVE ELECTRODE, MEANS FOR SUPPLYING CIRCULATING AIR TO SAID POSITIVE ELECTRODE COMPRISING A FLUE IN THE SAID POSITIVE ELECTRODE, IN COMMUNICATION WITH THE OUTSIDE AIR AT ITS UPPER PORTION, A TUBULAR CONDUCTIVE COLLECTOR LINING SAID FLUE IN ITS LENGTH AND EXTENDING OUTWARDLY OF SAID UPPER PORTION, PARTITIONING MEANS OF A LENGTH SUBSTANTIALLY EQUAL TO THE LENGTH OF SAID COLLECTOR POSITIONED WITHIN SAID COLLECTOR AND DEFINING AT LEAST TWO LONGITUDINAL CHAMBERS OF DIFFERENT VOLUMES THEREIN COMMUNICATING AT THEIR LOWER PORTIONS AND THE SAID COLLECTOR HAVING PERFORATIONS IN EACH OF SAID CHAMBERS EXPOSING CATALYTIC SITES OF SAID POSITIVE ELECTRODE IN SAID FLUE TO AIR, THE PROPORTIONALITY COEFFICIENTS OF THE AIR INPUT SURFACES AT THE CATALYTIC SITES OF SAID POSITIVE

Claim 3

Cell according to claim 1, characterized by the fact that the partitioning means is chamfered at its lower portion to permit intercommunication between siad chambers at this portion.

Claim 4

Cell according to claim 1, characterized in that at least two chambers communicate with the outside air through separate openings.

Claim 5

Cell according to one of the claims 1 characterized in that the circumferential wall of said flue is lined by said metallic collector, said collector being in the shape of a perforated tube.

Claim 6

Cell according to claim 1, characterized in that the partitioning means has a transverse cross-section in the form of a letter H, the two outer edges of each one of the two vertical bars of the said H resting against the inside wall of the tubular collector.

Claim 7

Cell according to claim 1 characterized in that the partitioning means is a flat strip of greater width than the diameter of said collector and in position within said collector is deformed elastically to curved shape providing two longitudinally extending chambers of different volumes in said collector, said strip having a chamfered portion permitting intercommunication between said chambers.

Claim 8

An air depolarization cell comprising a casing having therein a negative electrode, an electrolyte and a positive electrode, and means for effecting air circulation from the atmosphere to catalytic sites of said positive electrode within said cell, said means comprising providing a flue in said positive electrode, partitioning means for subdividing said flue into compartments of differing volumes communicating with each other at one end only, means in said flue providing like air access to catalytic sites of said positive electrode in each chamber, means for permitting entry of atmospheric air into the chamber of larger volume and for discharging exhaust air from the chamber of smaller volume, said partitioning means being so positioned that the resultant different volumes provide a draft effect causing entry of atmospheric air into the chamber of larger volume and the discharging of air from the chamber of smaller volume.

Claim 9

An air depolarization cell comprising a casing having therein a negative electrode, an electrolyte and a positive electrode, and means for effecting air circulation from the atmosphere to catalytic sites of said positive electrode within said cell, said means comprising providing a flue in said positive electrode, partitioning means for subdividing said flue into compartments of differing volumes communicating with each other at one end only, means in said flue providing like air access to catalytic sites of said positive electrode in each chamber, means for permitting entry of atmospheric air into the chamber of larger volume and for discharging exhaust air from the chamber of smaller volume, said partitioning means being so positioned that the resultant different volumes provide a draft effect causing entry of atmospheric air into the chamber of larger volume and the discharging of air from the chamber of smaller volume.

Claim 10

An air depolarizatioN cell according to claim 7 including a conductive tubular collector lining said flue, said collector having a like number of perforations in each of said chambers, which perforations provide said air access in said chambers to said catalytic sites of said positive electrode.

Claim 11

An air depolarizing cell according to claim 8 including closure means for said collector, and closure means at the opposite end of said collector having an exhaust air opening communicating with one of said chambers to atmosphere, and said collector also having an air intake opening providing an entry for atmospheric air to the other of said chambers for circulation in both said chambers and discharge through said exhaust opening.

Claim 12

An air depolarization cell according to claim 1 including a positive terminal and a negative terminal, means for connecting the negative terminal to said negative electrode and means for connecting said collector to said positive terminal.

Claim 13

Air depolarization cell comprising a negative electrode having a zinc base, an electrolyte, and a positive electrode, means for supplying circulating air to said positive electrode comprising a flue in the said positive electrode in communication with the outside air at its upper portion, a tubular conductive collector lining said flue in its length and extending outwardly of said upper portion, partitioning means of a length substantially equal to the length of said collector positioned within said collector and defining at least two longitudinal chambers of different volumes therein communicating at their lower portions, said partitioning means having a transverse cross section in the form of a letter H, the two outer edges of each one of the two vertical bars of said H resting against the inside wall of the tubular collector.

Claim 14

Air depolarization cell comprising a negative electrode having a zinc base, an electrolyte, and a positive electrode, means for supplying circulating air to said positive electrode comprising a flue in the said positive electrode in communication with the outside air at its upper portion, a tubular conductive collector lining said flue in its length and extending outwardly of said upper portion, partitioning means of a length substantially equal to the length of said collector positioned within said collector and defining at least two longitudinal chambers of different volumes therein communicating at their lower portions, said partitioning means having a transverse cross section in the form of a letter H, the two outer edges of each one of the two vertical bars of said H resting against the inside wall of the tubular collector.

Claim 15

An air depolarization cell comprising a casing having therein a negative electrode, an electrolyte and a positive electrode, and means for circulating air from the atmosphere to catalytic sites of said positive electrode within said cell, said means comprising providing a flue in said positive electrode, partitioning means for subdividing said flue into compartments of differing volumes communicating with each other at one end only, means in said flue providing like air access to catalytic sites of said positive electrode in each chamber, means for permitting entry of atmospheric air into the chamber of larger volume and for discharging exhaust air from the chamber of smaller volume, a conductive tubular collector lining said flue, said collector having a like number of perforations in each of said chambers, which perforations provide air access in said chambers to catalytic sites of said positive electrode, and closure means to opposite ends of said collector having an exhaust air opening communicating one of said chambers to atmosphere and said collector also having an air intake opening providing an entry for atmospheric air to the other of said chambers for circulating in both said chambers and discharge through said exhaust opening.

Claim 16

An air depolarization cell comprising a casing having therein a negative electrode, an electrolyte and a positive electrode, and means for circulating air from the atmosphere to catalytic sites of said positive electrode within said cell, said means comprising providing a flue in said positive electrode, partitioning means for subdividing said flue into compartments of differing volumes communicating with each other at one end only, means in said flue providing like air access to catalytic sites of said positive electrode in each chamber, means for permitting entry of atmospheric air into the chamber of larger volume and for discharging exhaust air from the chamber of smaller volume, a conductive tubular collector lining said flue, said collector having a like number of perforations in each of said chambers, which perforations provide air access in said chambers to catalytic sites of said positive electrode, and closure means to opposite ends of said collector having an exhaust air opening communicating one of said chambers to atmosphere and said collector also having an air intake opening providing an entry for atmospheric air to the other of said chambers for circulating in both said chambers and discharge through said exhaust opening.