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  Cover member for a gas combustion heads, and gas burner comprising such a cover memberUSPTO Application #: 20060040224Title: Cover member for a gas combustion heads, and gas burner comprising such a cover member Abstract: A cover member for gas combustion heads. The cover member has at least one tubular base structure. And the tubular base structure is formed by knitting at least one metal wire. (end of abstract) Agent: Birch Stewart Kolasch & Birch - Falls Church, VA, US Inventors: Andrea Lovato, Giuseppe Toniato USPTO Applicaton #: 20060040224 - Class: 431090000 (USPTO) Related Patent Categories: Combustion, Timer, Programmer, Retarder Or Condition Responsive Control, By Condition Of Burner Feed Or Feed Means, Sensor Of One Feed Controls Another Feed The Patent Description & Claims data below is from USPTO Patent Application 20060040224. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] The present invention relates to a metal cover member for premix burner gas combustion heads. [0002] The present invention also relates to a gas or vapourized liquid fuel burner comprising such a cover member. BACKGROUND OF THE INVENTION [0003] As is known, in premix combustion heads, i.e. in which gas and air are mixed upstream from the combustion region where the flame is generated, the perforated metal combustion head from which the inflammable mixture is emitted can be covered with a specially constructed metal cover member. [0004] Covering the combustion head with a metal cover member is particularly advantageous by enhancing heat exchange by radiation, while at the same time protecting the metal structure of the combustion head underneath. High modulation ratios and high-thermal-power premix applications can thus be achieved, which would otherwise be impossible on account of the severe thermal stress to which the combustion head is subjected. [0005] The metal cover member also prevents the combustion head underneath from overheating to the extent that hazardous backfiring occurs. [0006] Finally, the porosity of the metal cover member over the combustion head improves distribution of the fuel gas/air mixture, while at the same time reducing flame temperature and, hence, nitric oxide emissions. [0007] In premix radiant burners, known solutions employ appropriately shaped woven or sintered cover members fitted to the combustion heads. [0008] In the case of a burner with a cylindrical perforated combustion head, the woven or sintered cover member is folded to fit completely over the cylindrical surface of the combustion head, the free portions of the cover member are welded together, and the cover member so formed is welded to the combustion head. SUMMARY OF THE INVENTION [0009] It is an object of the present invention to provide a cover member for gas burners, and a gas or vapourized liquid fuel burner comprising such a cover member, which is improved with respect to currently marketed types. [0010] According to the present invention, there are provided a cover member for gas combustion heads, and a gas burner comprising such a cover member, as claimed in the accompanying independent Claims. BRIEF DESCRIPTION OF THE DRAWINGS [0011] Two non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which: [0012] FIG. 1 shows a layout of a premix gas burner featuring an innovative cover member; [0013] FIG. 2 shows an enlarged detail of the perforated combustion head of the FIG. 1 burner fitted with the cover member which is the main object of the present invention; [0014] FIG. 3 shows a number of stitches of a tubular base structure from which the cover member in FIGS. 1 and 2 is formed; [0015] FIG. 4 shows a tubular base structure made using at least one drawn wire and knitted by means of a first knitting operation; [0016] FIG. 5 shows a cover member formed by means of a second knitting operation using at least one tubular base structure formed by means of the first knitting operation; the tubular base structure is the one shown in FIGS. 3 and 4; [0017] FIG. 6 shows an enlarged detail of the cover member in FIG. 5; [0018] FIG. 7 shows a cover member formed by weaving a number of tubular base structures as shown in FIGS. 3 and 4; [0019] FIG. 8 shows an enlarged detail of the cover member in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION [0020] Number 10 in FIG. 1 indicates a premix gas burner featuring an innovative cover member in accordance with the present invention. Continue reading... Full patent description for Cover member for a gas combustion heads, and gas burner comprising such a cover member Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Cover member for a gas combustion heads, and gas burner comprising such a cover member patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Cover member for a gas combustion heads, and gas burner comprising such a cover member or other areas of interest. ### Previous Patent Application: Method and apparatus for injecting a gas into a two-phase stream Next Patent Application: Method for operating a furnace Industry Class: Combustion ### FreshPatents.com Support Thank you for viewing the Cover member for a gas combustion heads, and gas burner comprising such a cover member patent info. IP-related news and info Results in 0.18456 seconds Other interesting Feshpatents.com categories: Accenture , Agouron Pharmaceuticals , Amgen , AT&T , Bausch & Lomb , Callaway Golf |
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