F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
158/139
F23D 11/36 (2006.01) F23D 11/40 (2006.01)
Patent
CA 1154373
ABSTRACT OF THE DISCLOSURE In a burner, for example an oil burner, having a feed tube with a burner retainer therein, the air stream in the feed tube is controlled by a retarding shield positioned downstream of the burner retainer and having a central aperture for the flame and a substantially annular surrounding gap between the retarding shield and the inner periphery of the feed tube, and by a flange extending at right angles inwards from said inner peri- phery and which is positioned in spaced relation to the retarding shield in the direction of flow of the air.
365799
Ab Allterm
Marks & Clerk
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