Liquefied petroleum gas vaporizer having a surge chamber

Claim 1

A VAPORIZER FOR LIQUEFIED PETROLEUM GAS INCLUDING A CASING HAVING A HIGH PRESSURE CHAMBER FOR RECIEVING LIQUEFIED PETORLEUM GAS FROM A SUPLY SOURCE, MEAND FOR EXPANDING THE GAS FROM THE SUPPLY SOURCE INTO THE HIGH PRESSURE CHAMBER TO REDUCE THE TEMPERATURE OF SAID GAS, A VAPORIZING CHAMBER COMMUNICATING WITH THE HIGH PRESSURE CHAMBER AND FOR RECEIVING THE EXPANDD GAS THEREFROM, A HOT CHAMBER SURROUNDING THE VAPORIZING CHAMBER IN HEAT EXCHANGE RELATIONSHIP AND HAVING AN INLET AND AN OUTLET FOR CONDUCTING A HEAT EXCHANGE THERETHROUGH WHEREBY THE GAS VAPORIZES IN SAID VAPORIZING CHAMBER, A LOW PRESSURE CHAMBER COMMUNICATING WITH SAID VAPORIZING CAMBER IN SPACED RELATION TO ITS COMMUNICATION WITH SAID HIGH PRESSURE CHAMBER FOR RECEIVING AND DISCHARGING WARM VAPORIZED GAS, AND A SURGE CHAMBER BETWEEN SAID HIGH PRESSURE AND VAPORIZING CHAMBERS AND HAVING RESTRICTED COMMUNICATIONS WITH THE LOWER PORTIONS OF SAID VAPORIZING CHAMBER FOR RECEIVING THEREFROM LIQUID UNDER PRESSURE CREATED BY CONTINUED BAPORIZATION WITHIN SAID VAPORIZING CHAMBER AFTER THE GAS DEMAND IS REDUCED SO AS TO RETARD VAPORIZATION AND THE DISCHARGE OF WARM VAPORIZED UNTIL THE DEMAND THEREFOR IS INCREASED, THE SURGE CHAMBER BEING IN HEAT EXCHANGE RELATIONSHIP TO SAID HIGH PRESSURE CHAMBER SO AS TO BE COLD DUE TO ITS EXPOSURE TO THE LOW TEMPERATURE OF THE LIQUEFIED GAS IN SAID HIGH PRESSURE CHAMBER.