1. A heating appliance viewable from outside of a structure, the heating appliance comprising:
a combustion chamber enclosure having a front opening and a front panel at least partially covering the front opening, the combustion chamber enclosure defining a combustion chamber;
a gas burner positioned within the combustion chamber to combust a gasair mixture; and
an air intakegas exhaust system surrounding portions of the front panel, the air intakegas exhaust system comprising an intakeexhaust opening defined between a portion of the front panel and a side edge of the front opening, at least partially covered by a grille member, and adapted to provide intake of air into the combustion chamber and exhaustion of air and combustion gases from the combustion chamber simultaneously wherein the grille member is angularly placed to direct air towards the gas burner and exhaust air and gas away from the combustion chamber.
2. The heating appliance of claim 1 wherein the top panel extends at an angle greater than about 90 degrees and less than about 180 degrees relative to a back panel of the combustion chamber enclosure to facilitate exhaustion of air and gas.
3. The heating appliance of claim 1, wherein the combustion chamber enclosure includes opposed side panels, the side panels extending at an angle less than about 90 degrees but greater than 45 degrees relative to the front panel to facilitate the intake of air into the combustion chamber and exhaustion of air and combustion gas from the combustion chamber.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An RFIEMI shielding material comprising:
a conductive yarn having a plurality of monofilaments each including:
a stainless steel monofilament;
a first electroplated layer of a first metal or metal alloy completely and substantially uniformly electroplated on the stainless steel monofilament;
a second electroplated layer of a second metal or metal alloy completely and substantially uniformly electroplated on the first electroplated layer and having an electrical resistance lower than that of stainless steel; and.
wherein the complete and substantially uniform electroplating of the first electroplated layer and second electroplated layer is produced by low tension transport through electroplating process stations of the conductive yarn which has a twist of no more than 2.5 turnsinch.
2. The RFIEMI shielding material of claim 1 wherein the monofilaments are separate and not adhered to adjacent monofilaments.
3. The RFIEMI shielding material of claim 1 wherein the number of monofilaments in the yarn bundles is less than about 2,000.
4. The RFIEMI shielding material of claim 1 wherein the diameter of the stainless steel monofilaments is less than about 20 microns.
5. The RFIEMI shielding material of claim 1 wherein the first electroplated layer is a layer of nickel less than about 1000 Angstroms thick.
6. The RFIEMI shielding material of claim 1 which includes a third layer comprised of any electroplatable metal or metal alloy electroplated on the second layer.
7. The RFIEMI shielding material of claim 6 which includes a fourth layer comprised of any electroplatable metal or metal alloy electroplated on the third layer.
8. The RFIEMI shielding material of claim 1 wherein the conductive yarn has a resistancelength of less than about 2 ohmsft and a resistanceweight of less than about 15 ohmsgram.
9. A staple fiber cut or chopped from the conductive yarn of claim 1.
10. A coaxial cable incorporating a braided RFIEMI shield comprised of the conductive yarn of claim 1.
11. A woven RFIEMI cable shield in the form of a tubular sleeve comprised of the conductive yarn of claim 1.
12. An overbraided RFIEMI cable shield comprised of the conductive yarn of claim 1.
13. A woven fabric incorporating the conductive yarn of claim 1.
14. A non-woven fabric incorporating the conductive yarn of claim 1.
15. A composite yarn consisting of at least two single-ply yarns of claim 1 plied together.
16. A conductive multi-fiber comprising:
a plurality of metallized monofilaments each including:
a stainless steel monofilament;
a first electroplated layer of a first metal or metal alloy completely and substantially uniformly electroplated on the stainless steel monofilament;
a second electroplated layer of a second metal or metal alloy completely and substantially uniformly electroplated on the first electroplated layer; and
wherein the complete and substantially uniform electroplating of the first electroplated layer and second electroplated layer is produced by low tension transport through electroplating process stations of the plurality of metallized microfilaments which has a twist of no more than 2.5 turnsinch.
17. The conductive multi-fiber of claim 16 wherein the first layer electroplated on the stainless steel monofilaments is a layer of nickel less than about 1,000 Angstroms thick.
18. The conductive multi-fiber of claim 17 wherein the second layer is comprised of any electroplatable metal or metal alloy electroplated on the first layer.
19. The conductive multi-fiber of claim 16 which includes a third layer comprised of any electroplatable metal or metal alloy electroplated on the second layer.
20. The conductive multi-fiber of claim 19 which includes a fourth layer comprised of any electroplatable metal or metal alloy electroplated on the third layer.
21. The conductive multi-fiber of claim 16 wherein each of the monofilaments has:
as the first electroplated layer a layer of nickel less than about 1,000 Angstroms thick;
as the second electroplated layer a layer of copper electroplated on the layer of nickel; and
a third layer electroplated on the layer of copper and composed of a metal or metal alloy compatible with copper and resistant to oxidation and corrosion.
22. The conductive multi-fiber of claim 21 wherein the third layer electroplated on the layer of copper is composed of a metal or metal alloy to which solder can bond.
23. The conductive multi-fiber of claim 21 wherein each of the monofilaments has:
a fourth layer electroplated on the third layer of metal or metal alloy to which solder can bond.
24. The conductive multi-fiber of claim 16 in which the first electroplated layer is composed of a metal or metal alloy from the group consisting of brass, tin, zinc, nickel, gold, silver, platinum, palladium, rhodium, cadmium, chromium and Permalloy.
25. The conductive multi-fiber of claim 21 wherein the second electroplated layer is composed of a metal or metal alloy from the group consisting of nickel, tin, chromium, and the noble metals as well as tinlead and tinsilver.
26. The conductive multi-fiber of claim 23 wherein the fourth layer is a metal or metal alloy from the group consisting of silver, tin, tinlead and gold.
27. The conductive multi-fiber of claim 22 wherein the third layer is a metal or metal alloy from the group consisting of silver, tin, tin lead and gold.
28. The RFIEMI shielding material of claim 16 wherein the monofilaments are separate and not adhered to adjacent monofilaments.