Curtis K Brown

US Patent:

7223447, May 29, 2007

Filed:

Jul 26, 2005

Appl. No.:

11/190033

Inventors:

Curtis R. Brown - Crete IL, US
Theodore H. Krengel - Flossmore IL, US

Assignee:

IDOD Systems, LLC - Grant Park IL

International Classification:

H05B 6/02
B05D 3/06
B05D 7/22

US Classification:

427543, 427591, 427230, 427231, 427239, 4273741, 4273744, 4273745

Abstract:

Method of coating the seam of a welded tube with an adherent metal coating, including applying a nonadherent metal coating to the inside and outside of the welded seam, externally heating the seam area with the seam located in the lower portion of the tube to generally the melting temperature of the coating, then applying a fluid coolant to the external surface to freeze the outer coating while continuing heating to melt the coating on the inner surface and finally quenching. In one preferred embodiment, the tube is heated with an induction heater including a seam coil which first heats the seam area below the melting temperature of the coating and then heated with a full body coil. The coolant may be chilled water or other coolant which is sprayed onto the seam area.

US Patent:

20060103136, May 18, 2006

Filed:

Jul 24, 2003

Appl. No.:

10/521481

Inventors:

Theodore Krengel - Flossmoor IL, US
Curtis Brown - Crete IL, US

International Classification:

F16L 23/00

US Classification:

285371000

Abstract:

A pipe coupling including coaxially aligned pipes (), an internal tubular metal sleeve () having opposed ends press-fit into the open ends of the pipes, channel-shaped grooves () rolled into an outside diameter of each of the pipes and the sleeve (), and a U-shaped circular metal housing () having leg portions () received in the grooves (), retaining the pipes in coaxial alignment. The method includes press-fitting the opposed ends of the sleeve into the pipes, rolling a channel-shaped groove () into the pipes () and the sleeve (), and assembling the legs () of the housing () in the grooves ().