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US 7,717,166 B2Granted
Fin stock for a heat exchanger and a heat exchanger
AssigneeUnited Aluminum Corporation
InventorRobert C. Buchanan
Life of this patent
Estimating the term…
Abstract
The invention relates to a fin stock material having aluminum, where the material also has a tensile strength of between approximately 14,000 and approximately 26,000 psi, an elongation of less than 30%, and a hardness of between approximately 50 and approximately 70 on a Rockwell 15T scale.
Claims12
A fin stock, comprising:
- a cold worked aluminum based material that is shaped into a helix;
- said cold worked material has a tensile strength of between approximately 14,000 and approximately 26,000 psi;
- said cold worked material has an elongation of less than approximately 10%;
- and
- said cold worked material has a hardness of between approximately 50 and approximately 70 on a Rockwell 15T scale.
2 more elements
A heat exchanger, comprising:
- a tube for transporting a gas or liquid;
- said gas or liquid having a temperature;
- a fin stock in contact with said tube for dispersing the temperature of said gas or liquid;
- said fin stock being cold worked aluminum that is helically wound about said tube;
- said fin stock has a tensile strength of between approximately 14,000 and approximately 26,000 psi;
- said fin stock has an elongation of less than approximately 2% and a thickness between approximately 0.014 gauge and approximately 0.020 gauge;
- and
- said fin stock has a hardness of between approximately 50 and approximately 70 on a Rockwell 15T scale.
5 more elements
A fin stock, comprising:
- A cold worked material having at least 99% aluminum;
- said cold worked material is shaped into a helix;
- said cold worked material has a tensile strength of between approximately 18,000 and approximately 20,000 psi;
- said cold worked material has an elongation of less than 10%;
- and
- said cold worked material has a hardness of between approximately 50 and approximately 70 on a Rockwell 15T scale.
3 more elements
Dependencies are inferred from the claim text.