Oxygen generator cell

Claim 2

A CHEMICAL OXYGEN GENERATOR CELL WHICH COMPRISES A DISPOSABLE CANISTER HAVING AN END WALL WITH AN ORIFICE THERETHROUGH, A PUNCTURABLE SEAL CLOSING THE ORIFICE OF SAID END WALL A CHLORATE CANDLE IN SAID CANISTER HAVING A REDUCED AREA STARTING END, A REDUCED AREA FINISHING END, AND A MAIN BODY PORTION THEREBETWEEN, POROUS MATS IN THE CANISTER CLAMPING THE CANDLE AGAINST AXIAL SHIFTING IN THE CANISTER, A BAFFLE OVERLYING THE CANDLE IN THE CANISTER AND HAVING SIDE LEGS EMBRACING THE MAIN BODY PORTION OF THE CANDLE CENTERING THE CANDLE FROM THE SIDE WALL OF THE CANISTER AND PROVIDING OXYGEN FLOW PATHS BETWEEN THE CANDLE AND SIDE WALL OF THE CANISTER COMMUNICATING THROUGH THE POROUS MATS WITH THE ORIFICE IN THE END WALL OF THE CANISTER, A SEALED HOUSING IN SAID CANISTER ADJACENT SAID ORIFICE AND CONTAINING A FLUID FOR ACTIVATING THE CANDLE, IGNITION MATERIAL BETWEEN THE CANDLE AND SAID SEALED HOUSING, AND MEANS ACCESSIBLE THROUGH THE ORIFICE OF THE DANISTER FOR RELEASING FLUI FLUID FROM THE SEALED HOUSING TO ACTIVATE SAID IGNITION MATERIAL AND THEREBY ACTUATE THE CANDLE FOR DELIVERING OXYGEN FROM THE CANISTER THROUGH SAID ORIFICE.

Claim 3

The cell of claim 1 wherein the baffle is pressed in tight fitting relation in the canister and provides a compartment between the candle and the orificed end of the canister.

Claim 4

The cell of claim 1 wherein the candle has an elongated main body portion of hexagonal cross section shape with diametrically opposed apices engaging the canister and with diametrically opposed sides embraced by the legs of the baffle.

Claim 5

An oxygen generator cell which comprises a disposable tin can having an oxygen dispensing orifice in one end thereof, a puncturable seal closing said orifice, a chlorate candle in said can, means clamping said candle against axial movement in said can, said chlorate candle having reduced area leading and trailing ends tapering to a full main body portion between said ends, ignition cone material in the reduced leading end of the candle, a baffle with a centrally apertured end wall overlying the reduced leading end of the candle having depending side legs embracing the main body portion of the candle and centering the candle from the side wall of the can and providing oxygen flow paths between the legs and side wall of the candle, a sealed fluid filled thimble suspended in the can from the orificed end wall of the can around said orifice and having a nose portion pRojecting through the central aperture of the baffle end wall into close relation with said ignition cone material in the reduced leading end of the candle, plunger means in the thimble having a depending pin adapted to pierce the nose of the thimble to release fluid to the ignition cone material, and said plunger means adapted to be depressed upon puncturing the sealed orifice in the end wall of the can whereby the ignition material will activate the candle and oxygen will flow to the orifice.

Claim 6

An oxygen generator cell which comprises a disposable tin can having an oxygen dispensing orifice in one end thereof, a puncturable seal closing said orifice, a chlorate candle in said can, means clamping said candle against axial movement in said can, said chlorate candle having reduced area leading and trailing ends tapering to a full main body portion between said ends, ignition cone material in the reduced leading end of the candle, a baffle with a centrally apertured end wall overlying the reduced leading end of the candle having depending side legs embracing the main body portion of the candle and centering the candle from the side wall of the can and providing oxygen flow paths between the legs and side wall of the candle, a sealed fluid filled thimble suspended in the can from the orificed end wall of the can around said orifice and having a nose portion pRojecting through the central aperture of the baffle end wall into close relation with said ignition cone material in the reduced leading end of the candle, plunger means in the thimble having a depending pin adapted to pierce the nose of the thimble to release fluid to the ignition cone material, and said plunger means adapted to be depressed upon puncturing the sealed orifice in the end wall of the can whereby the ignition material will activate the candle and oxygen will flow to the orifice.

Claim 7

The generator of claim 4 wherein the thimble has a cylindrical main body portion, an outturned slotted flange, a reduced diameter nose portion and depressions in the nose portion slidably guiding the pin.

Claim 8

The generator of claim 4 wherein the end portion of the metal baffle fits tightly in the cylindrical wall of the can and is spaced downwardly from the orificed end wall of the can to provide a compartment, and filter material fills said compartment.

Claim 9

A chemical oxygen generator which comprises a disposable tin can having a cylindrical body, flat circular disk ends, and a central oxygen dispensing orifice in one disk end, a puncturable seal closing said orifice, a metal baffle in said tin can having an end wall tightly fitting the cylindrical body of the can spaced below the orificed disk end of the can and cooperating therewith to provide a compartment in the can, filter means in said compartment, said baffle having opposed side legs extending from the end wall of the baffle inwardly from the cylindrical body of the can providing flow paths between the side legs and cylindrical body connecting with said compartment, a chlorate candle underlying said baffle and embraced by said legs, ignition material in the end of said candle adjacent said end wall of the baffle, filters in said compartment between the baffle and orificed disk end of the can, a sealed thimble filled with ignition material activating fluid suspended from the orificed disk end of the can around the orifice thereof and extending through the filter means and the end wall of the baffle to the ignition material, plunger means in said thimble having a piercing point for rupturing a portion of the thimble to release fluid to the ignition material, said plunger means being actuated through the orifice in the disk end of the can whereby the ignition material will ignite the candle to release oxygen to the flow paths and through the filter means to the orifice, and resilient pads at the ends of the candle clamping the candle against axial shifting in the can.

Claim 10

A chemical oxygen generator which comprises a disposable tin can having a cylindrical body, flat circular disk ends, and a central oxygen dispensing orifice in one disk end, a puncturable seal closing said orifice, a metal baffle in said tin can having an end wall tightly fitting the cylindrical body of the can spaced below the orificed disk end of the can and cooperating therewith to provide a compartment in the can, filter means in said compartment, said baffle having opposed side legs extending from the end wall of the baffle inwardly from the cylindrical body of the can providing flow paths between the side legs and cylindrical body connecting with said compartment, a chlorate candle underlying said baffle and embraced by said legs, ignition material in the end of said candle adjacent said end wall of the baffle, filters in said compartment between the baffle and orificed disk end of the can, a sealed thimble filled with ignition material activating fluid suspended from the orificed disk end of the can around the orifice thereof and extending through the filter means and the end wall of the baffle to the ignition material, plunger means in said thimble having a piercing point for rupturing a portion of the thimble to release fluid to the ignition material, said plunger means being actuated through the orifice in the disk end of the can whereby the ignition material will ignite the candle to release oxygen to the flow paths and through the filter means to the orifice, and resilient pads at the ends of the candle clamping the candle against axial shifting in the can.

Claim 11

In a disposable can chemical oxygen generator cell having a can housing with an oxygen outlet orifice in an end wall thereof, a chlorate candle therein, and an actuator for igniting the candle, the improvement of a metal baffle snugly fitting in said can in spaced relation inwardly from the orificed end of the can and overlying one end of the candle to provide a compartment in the can receiving oxygen from the candle as it flows to the orifice, said baffle having opposed integral depending legs embracing the sides of the candle to center the candle from the side wall of the can and provide oxygen flow paths along the length of the candle between the legs and the side walls of the can communicating with said compartment.

Claim 12

In a disposable can chemical oxygen generator cell having a can housing with an oxygen outlet orifice in an end wall thereof, a chlorate candle therein, and an actuator for igniting the candle, the improvement of a metal baffle snugly fitting in said can in spaced relation inwardly from the orificed end of the can and overlying one end of the candle to provide a compartment in the can receiving oxygen from the candle as it flows to the orifice, said baffle having opposed integral depending legs embracing the sides of the candle to center the candle from the side wall of the can and provide oxygen flow paths along the length of the candle between the legs and the side walls of the can communicating with said compartment.

Claim 13

In a chemical oxygen generator cell, a can, an orificed end wall on said can, a chlorate candle in said can, a thimble suspended from the orificed end wall of the can and extending therefrom into close relation with an end of the candle, said thimble having a tubular portion with a reduced diameter nose and a closed puncturable bottom, a plunger in said tubular portion, a needle extending from the plunger into the reduced diameter nose having a pointed end adapted to puncture the bottom of the nose, a seal underlying the plunger trapping liquid in the thimble and nose, said thimble having an outturned flange secured to the underface of the orificed end wall of the can around the orifice thereof, and radial openings below said flange acCommodating flow of oxygen to the orifice in the end wall of the can.

Claim 14

In a chemical oxygen generator cell, a can, an orificed end wall on said can, a chlorate candle in said can, a thimble suspended from the orificed end wall of the can and extending therefrom into close relation with an end of the candle, said thimble having a tubular portion with a reduced diameter nose and a closed puncturable bottom, a plunger in said tubular portion, a needle extending from the plunger into the reduced diameter nose having a pointed end adapted to puncture the bottom of the nose, a seal underlying the plunger trapping liquid in the thimble and nose, said thimble having an outturned flange secured to the underface of the orificed end wall of the can around the orifice thereof, and radial openings below said flange acCommodating flow of oxygen to the orifice in the end wall of the can.

Claim 15

In a chemical oxygen generator cell, the improvement of an oxygen generating candle comprising a compressed briquette of oxygen generating chemical material, said briquette having an elongated hexagonal shaped body with apices sized to engage the side wall of the cell and side walls spaced from the side wall of the shell to provide oxygen flow paths therebetween, said hexagonal body having a tapered leading end converging to a reduced cross section end, and said body having a tapered bottom portion converging to a reduced area bottom end, said top end having a central recess, and ignition cone material filling said recess.

Claim 16

In a chemical oxygen generator cell, the improvement of an oxygen generating candle comprising a compressed briquette of oxygen generating chemical material, said briquette having an elongated hexagonal shaped body with apices sized to engage the side wall of the cell and side walls spaced from the side wall of the shell to provide oxygen flow paths therebetween, said hexagonal body having a tapered leading end converging to a reduced cross section end, and said body having a tapered bottom portion converging to a reduced area bottom end, said top end having a central recess, and ignition cone material filling said recess.