Patent ID: 8104291

Claim:
At least one floating collar assembly for a cap of a combustion unit containing at least one fuel nozzle assembly corresponding to the at least one floating collar assembly, each of the at least one fuel nozzle assemblies including a fuel nozzle burner tube, each of the at least one floating collar assemblies comprising: a floating collar positioned around a side wall of a corresponding fuel nozzle burner tube, the collar including a flange for engaging the cap, the flange being substantially parallel to the side wall of the burner tube when the floating collar is positioned around the side wall, and a sealing spring positioned between the flange and a plate attached to the cap, the plate being substantially parallel to the side wall of the burner tube when the cap and plate are positioned over the burner tube, the sealing spring producing a seating load between the collar flange and the plate to hold the flange against the cap and thereby prevent the floating collar from rotating during combustion unit operation.