| US 7,600,998 B1 | ||
| Portable heater with roll cage | ||
| Eric Pitchford, 2701 Industrial Dr., Bowling Green, Ky. 42101 (US); Henry Haley, 2701 Industrial Dr., Bowling Green, Ky. 42101 (US); Craig Higginbotham, 2701 Industrial Dr., Bowling Green, Ky. 42101 (US); and Griffin Bland, 2701 Industrial Dr., Bowling Green, Ky. 42101 (US) | ||
| Filed on Jan. 30, 2007, as Appl. No. 11/668,668. | ||
| Claims priority of provisional application 60/822436, filed on Aug. 15, 2006. | ||
| Int. Cl. F24H 1/00 (2006.01) | ||
| U.S. Cl. 432—222 [126/60; 126/61; 126/110 B; 432/219] | 22 Claims |
| 1. A heating system comprising:
an elongated cylindrical airflow housing having an inlet end and an outlet end, said inlet end defining an air inlet opening
and said outlet end defining an air outlet opening, wherein said air inlet opening and said air outlet opening is axially
aligned through said airflow housing;
a combustion chamber having a burner assembly, and a fan forcing air through said air inlet opening and axially through said
airflow housing while being heated by said combustion chamber, whereby said heated air exits through said air outlet opening;
a first end cap adjacent said inlet end and a second end cap adjacent said outlet end; and
a plurality of roll cage bars extending between said first end cap and said second end cap so that said roll cage bars extend
substantially parallel to an exterior surface of said housing.
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