Roderick G Strohl

US Patent:

59132884, Jun 22, 1999

Filed:

Mar 23, 1998

Appl. No.:

9/046463

Inventors:

James L. Mickel - Camp Hill PA
Roderick G. Strohl - Annville PA
Glenn R. Sward - Lancaster PA

Assignee:

Burnham Corporation - Lancaster PA

International Classification:

F22B 712

US Classification:

122149

Abstract:

A long-lasting hot water boiler. The boiler has a lower drum with a first pass fire-tube for generating combustion gases, an upper drum with a second pass fire-tube bundle for the gaseous products of combustion, and a lined fire reversing chamber for directing the gaseous products from the first pass to the second pass. The reversing chamber liner includes a saddle piece and a turnaround piece which cooperate to protect vulnerable weld joints adjacent the reversing chamber and which maintain proper positioning even after weld pins melt. The upper and lower drums are interconnected by an expansion joint which permits unequal thermal expansion of the drums, and a bypass circulation system prevents thermal shocking of the boiler.

US Patent:

45590095, Dec 17, 1985

Filed:

Sep 12, 1984

Appl. No.:

6/649975

Inventors:

John A. Marino - Palmyra PA
Roderick G. Strohl - Annville PA
Robert B. Yost - Bethel PA

Assignee:

Hauck Manufacturing Company - Lebanon PA

International Classification:

F23M 900

US Classification:

431184

Abstract:

A swirl-type internal flame recirculation burner as used to fire asphalt plant aggregate dryers, air heaters and calcining kilns and method includes an atomizer assembly for swirling primary air in two concentric streams with the inner stream swirling more rapidly than the outer stream. Fuel oil is blast atomized in a continuous sheet into the inner stream without prefilming and then is shear atomized as the inner and outer streams violently intermix. The burning and swirling fuel and primary air mixture recirculates upstream along the burner axis. Secondary air is swirled in the same direction as the primary air and surrounds the primary air stream to promote further mixing and internal recirculation. A metal frustro-conical flame holder surrounds the burner head to stabilize and shape the recirculation flame and shield low-burn flames from tertiary air. The swirl of the secondary air is also adjusted to shape the flame.