Deep cryogenic tempering process based on flashing liquid nitrogen through a dispersal system
Assignee300 Below, Inc.
InventorsPeter J. Paulin, John R. Koucky, Robert W. Brunson
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Abstract
A method for treating firearm barrels and components to achieve an end result of increased accuracy and extended barrel life. The method involves placing the firearm barrels and components into cryogenic processing and heat treating equipment. The processing temperature is then significantly lowered to about -300 F. and maintained for a predetermined time. The processing temperature is then raised back to ambient temperature. After achieving ambient temperature the processing temperature is then raised to about +300 F. and maintained for a predetermined time. Finally the processing temperature is lowered back to ambient temperature.
Claims20
A process for treating firearm barrels comprising the steps of:
- (a) providing a quantity of firearm barrels at a temperature, said quantity of firearm barrels having a mass;
- (b) providing a cryogenic processor with a dispersal system;
- (c) loading said cryogenic processor with said quantity of firearm barrels;
- (d) flashing liquid nitrogen through said dispersal system so as to gradually lower the temperature of said quantity of firearm barrels to approximately -300 degrees F.;
- (e) holding the temperature of said quantity of firearm barrels at approximately -300 degrees F. for a first predetermined time;
- (f) gradually raising the temperature of said quantity of firearm barrels or components to ambient temperature;
- (g) tempering said quantity of firearm barrels at approximately +300 degrees F.;
- and
- (h) gradually lowering the temperature of said quantity of firearm barrels to ambient temperature.
A process for treating firearm components comprising the steps of:
- (a) providing a quantity of firearm components at a temperature, said quantity of firearm components having a mass;
- (b) providing a cryogenic processor with a dispersal system;
- (c) loading said cryogenic processor with said quantity of firearm components;
- (d) flashing liquid nitrogen through said dispersal system so as to gradually lower the temperature of said quantity of firearm components to approximately -300 degrees F.;
- (e) holding the temperature of said quantity of firearm barrels components at approximately -300 degrees F. for a first predetermined time;
- (f) gradually raising the temperature of said quantity of firearm components to ambient temperature;
- (g) tempering said quantity of firearm components at approximately +300 degrees F.;
- and
- (h) gradually lowering the temperature of said quantity of firearm components to ambient temperature.
A method, comprising:
- (a) providing a quantity of components at a temperature, said quantity of components having a mass;
- (b) providing a cryogenic processor with a dispersal system;
- (c) loading said cryogenic processor with said quantity of components;
- (d) flashing liquid nitrogen through said dispersal system so as to gradually lower the temperature of said quantity of components to approximately -300 degrees F.;
- (e) holding the temperature of said quantity of firearm barrels components at approximately -300 degrees F. for a first predetermined time;
- (f) gradually raising the temperature of said quantity of components to ambient temperature;
- (g) tempering said quantity of components at approximately +300 degrees F.;
- and
- (h) gradually lowering the temperature of said quantity of components to ambient temperature.
Dependencies are inferred from the claim text.