CA1266212A - Catalytic camping stove - Google Patents
Catalytic camping stoveInfo
- Publication number
- CA1266212A CA1266212A CA000486201A CA486201A CA1266212A CA 1266212 A CA1266212 A CA 1266212A CA 000486201 A CA000486201 A CA 000486201A CA 486201 A CA486201 A CA 486201A CA 1266212 A CA1266212 A CA 1266212A
- Authority
- CA
- Canada
- Prior art keywords
- plate
- stove
- fuel
- chamber
- accordance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/14—Stoves or ranges for gaseous fuels with special adaptation for travelling, e.g. collapsible
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
- Catalysts (AREA)
- Gas Burners (AREA)
- Catching Or Destruction (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Abstract of the Disclosure:
A catalytic stove is provided comprising a mixing chamber having one end adapted to receive a fuel can and an opposite end provided with a diffuser. A plate provided with a grid of between 200 and 400 openings per square inch extends across the exit end of the diffuser. A catalytic surface is coated on the exit portion of the plate. The catalyst is selected from the group consisting of platinum, palladium, rhodium and iridium.
A catalytic stove is provided comprising a mixing chamber having one end adapted to receive a fuel can and an opposite end provided with a diffuser. A plate provided with a grid of between 200 and 400 openings per square inch extends across the exit end of the diffuser. A catalytic surface is coated on the exit portion of the plate. The catalyst is selected from the group consisting of platinum, palladium, rhodium and iridium.
Description
~Z~6~
The present Inventlon relates to camplng stoves and In partlcuiar to flame-free, catalytlc stoves.
The conventlonal camping stove of the type deslgned to flt In a backpack or the llke conslsts of a burner unlt adapted to screw or clamp onto a can contalnlng ~ supply of fuel such as propane or butane. Whlle such stoves meet the prime obJectlves of belng llght-welght and hence easlly portable, they suffer from the serlous drawback of relylng on an open flame to produce heat.
The flame poses a flre hazard particularly when used In a dry locatlon. In addltlon, the flame Is subJect to belng extln-gulshed, or the heat therefrom to belng dlspersed durlng wlndy or raln condltlons. A further problem wlth such stoves Is that they permlt only a llmlted degree of throttllng and hence, must burn at substantlally the same rate In all condltlons.
In vlew of the above, the presen~ Inventlon provldes an Improved camplng stove whlch Is less sensltlve to weather condl-tlons than conventlonal, flame type stoves.
The present Inventlon also provldes such a stove whlch may more readlly be throttled as requlred to Increase or decrease the rate of combustlon.
The present Inventlon agaln provldes a camplng stove whlch Is more fuel efflclent than conventlonal stoves and whlch ylelds less obJectlonable emlsslons than conventlonal stoves.
Accordlng to the ~resent Inventlon therefore there Is provlded a catalytlc stove comprlslng a fuel/alr mlxlng chamber for generatlng a fuel/alr mlxture and havln~ an Inlet and an oUt-let; a dlffuser surroundlng the chamber outlet; a plate overlylng ` the dlffuser, sald plate havlng an Inner face, an exlt face opposed to and spaced away ~rom sald Inner face and a grld of openlngs Interconnectlng sald ~aces for passlng the fuel~alr mlx-ture from the mlxlng chamber; preheatlng means for preheatlng ,'~ ' .
", ., ' ~
~6;~
sal d Plate; said Inner face belng dlrected toward sald chamber;
and sald exlt face dlrected away from sald chamber, sald plate ; belng provlded wlth a catalytlc coatlng only on sald exlt face and extendln~ mlnutely Into the openlngs as compared to the over-all length of the grld For generatlng flameless heat by catalytlc combustlon of the fuel/air mlxture substantlally at sald exlt face only wlthout dlrectly heatlng the Inner face due to the thlckness of the plate. Sultably sald preheatlng means comprlses a flame holder dlsposed about sald chamber outlet and posltloned wlthln sald dlffuser. Deslrably sald dlffuser comprlses a trun-cated, Inverted cone and sald flame holder comprlses a truncated perforated cone.
In one embodIment of the present Inventlon the stove ~urther comprlses fuel/alr Ignlter means In sald chamber allgned wlth sald flame holder for causlng Inltlal combustlon of the fuel/alr mlxture exltlng sald flame holder for preheatlng sald catalytlc coatlng on sald plate, thereafter combustlon occurrlng only at sald plate by the catalyst.
In a further embodlment of the present Inventlon the dlFfuser further comprlses a pan support extendlng about sald plate grld, sald support Includlng support surfaces extendlng outwardly beyond the exlt face of sald plate.
Thus, In accordance wlth the present Inventlon the camp stove comprlses an elongated fuel-alr mlxlng chamber In the form of an elongated tube. A fuel tank coupllng Is provlded at the Inlet of the chamber. A dlffuser Is provlded surroundlng the outlet of the chamber. A plate provlded wlth a grld overlles the outlet end of the dlffuser. The Plate Is monollthlc metalllc or ceramlc member wlth between 200 and 400 openlngs per Inch thereln, the openlngs belng on the order of ,06H x .06~ and .044"
x .044", respectlvely. The plate has an exlt face wlth a cat-alytlc coatlng thereon extendlng mlnutely Into the Interstlces ofthe grld. The catalytlc coatlng Is formed from the group con-. ~_ z _ ., i , ..,~
~2~6~
slstlng of platlnum, palladlum, rhodlum and Irldlum.
The present Inventlon wlll be further Illustrated byway of the accompanylng drawlngs, In whlch:-Flg. 1 Is a slmpll~led slde elevatlonal sectlonal vlewof a catalytlc s~ove In accordance wlth the present Inventlon;
~5 - 2a -~ ,, ', . ~ !
~LZ66;~
¦ Fig. 2 is a sectional view taken along reference line
The present Inventlon relates to camplng stoves and In partlcuiar to flame-free, catalytlc stoves.
The conventlonal camping stove of the type deslgned to flt In a backpack or the llke conslsts of a burner unlt adapted to screw or clamp onto a can contalnlng ~ supply of fuel such as propane or butane. Whlle such stoves meet the prime obJectlves of belng llght-welght and hence easlly portable, they suffer from the serlous drawback of relylng on an open flame to produce heat.
The flame poses a flre hazard particularly when used In a dry locatlon. In addltlon, the flame Is subJect to belng extln-gulshed, or the heat therefrom to belng dlspersed durlng wlndy or raln condltlons. A further problem wlth such stoves Is that they permlt only a llmlted degree of throttllng and hence, must burn at substantlally the same rate In all condltlons.
In vlew of the above, the presen~ Inventlon provldes an Improved camplng stove whlch Is less sensltlve to weather condl-tlons than conventlonal, flame type stoves.
The present Inventlon also provldes such a stove whlch may more readlly be throttled as requlred to Increase or decrease the rate of combustlon.
The present Inventlon agaln provldes a camplng stove whlch Is more fuel efflclent than conventlonal stoves and whlch ylelds less obJectlonable emlsslons than conventlonal stoves.
Accordlng to the ~resent Inventlon therefore there Is provlded a catalytlc stove comprlslng a fuel/alr mlxlng chamber for generatlng a fuel/alr mlxture and havln~ an Inlet and an oUt-let; a dlffuser surroundlng the chamber outlet; a plate overlylng ` the dlffuser, sald plate havlng an Inner face, an exlt face opposed to and spaced away ~rom sald Inner face and a grld of openlngs Interconnectlng sald ~aces for passlng the fuel~alr mlx-ture from the mlxlng chamber; preheatlng means for preheatlng ,'~ ' .
", ., ' ~
~6;~
sal d Plate; said Inner face belng dlrected toward sald chamber;
and sald exlt face dlrected away from sald chamber, sald plate ; belng provlded wlth a catalytlc coatlng only on sald exlt face and extendln~ mlnutely Into the openlngs as compared to the over-all length of the grld For generatlng flameless heat by catalytlc combustlon of the fuel/air mlxture substantlally at sald exlt face only wlthout dlrectly heatlng the Inner face due to the thlckness of the plate. Sultably sald preheatlng means comprlses a flame holder dlsposed about sald chamber outlet and posltloned wlthln sald dlffuser. Deslrably sald dlffuser comprlses a trun-cated, Inverted cone and sald flame holder comprlses a truncated perforated cone.
In one embodIment of the present Inventlon the stove ~urther comprlses fuel/alr Ignlter means In sald chamber allgned wlth sald flame holder for causlng Inltlal combustlon of the fuel/alr mlxture exltlng sald flame holder for preheatlng sald catalytlc coatlng on sald plate, thereafter combustlon occurrlng only at sald plate by the catalyst.
In a further embodlment of the present Inventlon the dlFfuser further comprlses a pan support extendlng about sald plate grld, sald support Includlng support surfaces extendlng outwardly beyond the exlt face of sald plate.
Thus, In accordance wlth the present Inventlon the camp stove comprlses an elongated fuel-alr mlxlng chamber In the form of an elongated tube. A fuel tank coupllng Is provlded at the Inlet of the chamber. A dlffuser Is provlded surroundlng the outlet of the chamber. A plate provlded wlth a grld overlles the outlet end of the dlffuser. The Plate Is monollthlc metalllc or ceramlc member wlth between 200 and 400 openlngs per Inch thereln, the openlngs belng on the order of ,06H x .06~ and .044"
x .044", respectlvely. The plate has an exlt face wlth a cat-alytlc coatlng thereon extendlng mlnutely Into the Interstlces ofthe grld. The catalytlc coatlng Is formed from the group con-. ~_ z _ ., i , ..,~
~2~6~
slstlng of platlnum, palladlum, rhodlum and Irldlum.
The present Inventlon wlll be further Illustrated byway of the accompanylng drawlngs, In whlch:-Flg. 1 Is a slmpll~led slde elevatlonal sectlonal vlewof a catalytlc s~ove In accordance wlth the present Inventlon;
~5 - 2a -~ ,, ', . ~ !
~LZ66;~
¦ Fig. 2 is a sectional view taken along reference line
2-2 of Fig. 1 in the direction indicated by the arrows;
Fig. 3 is a simplified enlarged side elevational view j of the stove plate; and, !l I Fig. 4 is a fragmentary enlarged schematic plan view of the plate grid.
¦ Detailed Descri~tion of the Preferred Embodlment:
,1 Reference is now made to the drawings and to Fig. l in particular wherein a stove 10 in accordance with the present lnvention is depicted. The stove is designed to be used with a conventionaL fuel can or tank 12 containing liquid butane or propane. To this end, the top of tank 12 contains a coupling for connection to a mating coupling provided at the bottom of the stove. A valve 14 is provided at the inlet to the stove for regulating the flow of fuel from the tank into the stove.
The stove includes a mixing chamber in the form of an elongated tube 18.
An orifice 16 is provided at the inlet to the mixing tube 18 which comprises the main body of stove 10. The orifice is fixed and serves to regulate the flow of fuel from tank 12 when valve 14 is open. The orifice ~ ~ produces 6~ a high velocity jet of fuel ~ ~into tube 18. Ambient air which enters the tube 18 through an inlet opening 20 is ,, sucked into the tube where i~ is mixed with the gas to form , -3 - ~, Il ,1 1266~1X
a combust~ble mixture. The relative sizes of the orifice and tube determine the resulting ratio of air to fuel I passiLtg through~the stove.
~¦ At the top end of tube 18 a flame holder 22 in the form of a perforated truncated cone is provided. The flame holder 22 serves as a cap for the tube so that the ~¦ perforations 24 extending through the cap provide the only exit for the fuel/air mixture passing through the tube. As , shown, the perforations 24 are distributed substantially uniformly over the flame holder surface.
An ignition port 28 extends through the flame holder 22. A spark igniter, utilizing, for example, a flint or piezoelectric element may be provided in the ignition port in the manner common in conventional gas stoves.
A diffuser 28 comprising an inverted, truncated cone , extends upwardly from the side of tube 18 adjacent to its ¦ upper end. As shown, the ignition port 28 passes through the diffuser. The bottom of diffuser 28 is sealed to the outer surface of tube 18 so that the diffuser 28 acts as a funnel direating the gas/air mixture upwardly and outwardly.
A plate 30 is provided extending across the open top end of the diffuser 28. A gas1cet 32 seals the edge of plate 30 to a rim 32 which, in turn, is sealed to or formed integral with the top edge of the diffuser. Rim 34 is provided with spaced projections 36 that extend beyond the top face of plate 30. These projections serve as a support for pots or pans to be heated on the stove. The plate 30 is shown in : I
jl ~4~
. .
i' " ' ~2~6~
~ome detail in Figs. 3 and 4. As shown, the plate is a generally pancake-shaped member which may be formed of a ceramic or metal. The plate is formed as a monolith with a relatively large number of small openings extending therethrough. The number of openings should be on the order of 200-400 per square inch.
An lmportant aspect of the present invention resides in ~he fact that a catalytic surface is applied as a coating to the outer (i.e. exit) face of plate 30 extending into the interstices of the grid to a depth of approximately 1 or 2 .~, mm. This depth bei~such as to complete combustion of the ~/C/~ fuel/air mixture in the presence of the catalyst. The 6~q catalyst is applied only as a surface coating to plate 30.
The catalyst may be platinum, palladium, or other rare metal such as rhodium or iridium.
In operation, the valve is first opened to permit fuel to flow from the tank through the orifice into the mixing tube.
As the gas passes through the tube it entrains air ~/6/ 1 thereby creating a flamable mixture. The spark igniter is ~ ~ then activated or a flame is passed through the ignition 6fl6/~ 1~ port to ignite the gastair mixture at the top of the flame ~,( ; ,j holder. After several seconds the catalyst is heated and the flame is extinguished by turning off the gas flow. The iI valve is then reopened to re-establish gas flow and after a ,~ few seconds the~top portion of the plate 30 glows from the catalytic combustion that is taking place. Food may then be i cooked or water boiled by placing a pan on the pot/pan supports 36. Heating takes place by means of radiant heating an by convection of the heated gases passing lZ66;~1~
adjacent to the cooking utensil. Since the present stove operates without a flame, it is less sensitive to wind than are conventional flame stoves. In addition, the catalytic stove throttles better than conventional stoves since there is no need to support a flame.
~¦ Thus, in accordance with the above, the aforementioned objectives are effectively attained.
. .
. ~ .
: , , .
: l :
1 :
' ' !
i ....
Fig. 3 is a simplified enlarged side elevational view j of the stove plate; and, !l I Fig. 4 is a fragmentary enlarged schematic plan view of the plate grid.
¦ Detailed Descri~tion of the Preferred Embodlment:
,1 Reference is now made to the drawings and to Fig. l in particular wherein a stove 10 in accordance with the present lnvention is depicted. The stove is designed to be used with a conventionaL fuel can or tank 12 containing liquid butane or propane. To this end, the top of tank 12 contains a coupling for connection to a mating coupling provided at the bottom of the stove. A valve 14 is provided at the inlet to the stove for regulating the flow of fuel from the tank into the stove.
The stove includes a mixing chamber in the form of an elongated tube 18.
An orifice 16 is provided at the inlet to the mixing tube 18 which comprises the main body of stove 10. The orifice is fixed and serves to regulate the flow of fuel from tank 12 when valve 14 is open. The orifice ~ ~ produces 6~ a high velocity jet of fuel ~ ~into tube 18. Ambient air which enters the tube 18 through an inlet opening 20 is ,, sucked into the tube where i~ is mixed with the gas to form , -3 - ~, Il ,1 1266~1X
a combust~ble mixture. The relative sizes of the orifice and tube determine the resulting ratio of air to fuel I passiLtg through~the stove.
~¦ At the top end of tube 18 a flame holder 22 in the form of a perforated truncated cone is provided. The flame holder 22 serves as a cap for the tube so that the ~¦ perforations 24 extending through the cap provide the only exit for the fuel/air mixture passing through the tube. As , shown, the perforations 24 are distributed substantially uniformly over the flame holder surface.
An ignition port 28 extends through the flame holder 22. A spark igniter, utilizing, for example, a flint or piezoelectric element may be provided in the ignition port in the manner common in conventional gas stoves.
A diffuser 28 comprising an inverted, truncated cone , extends upwardly from the side of tube 18 adjacent to its ¦ upper end. As shown, the ignition port 28 passes through the diffuser. The bottom of diffuser 28 is sealed to the outer surface of tube 18 so that the diffuser 28 acts as a funnel direating the gas/air mixture upwardly and outwardly.
A plate 30 is provided extending across the open top end of the diffuser 28. A gas1cet 32 seals the edge of plate 30 to a rim 32 which, in turn, is sealed to or formed integral with the top edge of the diffuser. Rim 34 is provided with spaced projections 36 that extend beyond the top face of plate 30. These projections serve as a support for pots or pans to be heated on the stove. The plate 30 is shown in : I
jl ~4~
. .
i' " ' ~2~6~
~ome detail in Figs. 3 and 4. As shown, the plate is a generally pancake-shaped member which may be formed of a ceramic or metal. The plate is formed as a monolith with a relatively large number of small openings extending therethrough. The number of openings should be on the order of 200-400 per square inch.
An lmportant aspect of the present invention resides in ~he fact that a catalytic surface is applied as a coating to the outer (i.e. exit) face of plate 30 extending into the interstices of the grid to a depth of approximately 1 or 2 .~, mm. This depth bei~such as to complete combustion of the ~/C/~ fuel/air mixture in the presence of the catalyst. The 6~q catalyst is applied only as a surface coating to plate 30.
The catalyst may be platinum, palladium, or other rare metal such as rhodium or iridium.
In operation, the valve is first opened to permit fuel to flow from the tank through the orifice into the mixing tube.
As the gas passes through the tube it entrains air ~/6/ 1 thereby creating a flamable mixture. The spark igniter is ~ ~ then activated or a flame is passed through the ignition 6fl6/~ 1~ port to ignite the gastair mixture at the top of the flame ~,( ; ,j holder. After several seconds the catalyst is heated and the flame is extinguished by turning off the gas flow. The iI valve is then reopened to re-establish gas flow and after a ,~ few seconds the~top portion of the plate 30 glows from the catalytic combustion that is taking place. Food may then be i cooked or water boiled by placing a pan on the pot/pan supports 36. Heating takes place by means of radiant heating an by convection of the heated gases passing lZ66;~1~
adjacent to the cooking utensil. Since the present stove operates without a flame, it is less sensitive to wind than are conventional flame stoves. In addition, the catalytic stove throttles better than conventional stoves since there is no need to support a flame.
~¦ Thus, in accordance with the above, the aforementioned objectives are effectively attained.
. .
. ~ .
: , , .
: l :
1 :
' ' !
i ....
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A catalytic stove comprising a fuel/air mixing chamber for generating a fuel/air mixture and having an inlet and an outlet; a diffuser surrounding the chamber outlet; a plate overlying the diffuser, said plate having an inner face, an exit face opposed to and spaced away from said inner face and a grid of openings interconnecting said faces for passing the fuel/air mixture from the mixing chamber; preheating means for preheating said plate; said inner face being directed toward said chamber;
and said exit face directed away from said chamber, said plate being provided with a catalytic coating only on said exit face and extending minutely into the openings as compared to the over-all length of the grid for generating flameless heat by catalytic combustion of the fuel/air mixture substantially at said exit face only without directly heating the inner face due to the thickness of the plate.
and said exit face directed away from said chamber, said plate being provided with a catalytic coating only on said exit face and extending minutely into the openings as compared to the over-all length of the grid for generating flameless heat by catalytic combustion of the fuel/air mixture substantially at said exit face only without directly heating the inner face due to the thickness of the plate.
2. The stove in accordance with claim 1, wherein said preheating means comprises a flame holder disposed about said chamber outlet and positioned within said diffuser.
3. The stove in accordance with claim 2, wherein said diffuser comprises a truncated, inverted cone and said flame holder comprises a truncated perforated cone.
4. The stove in accordance with claim 1, further com-prising fuel receiving means at the chamber inlet; an orifice upstream of said fuel receiving means to accelerate the flow of fuel through said chamber; and an air inlet passing through said chamber whereby fuel passing through said chamber entrains air from within said chamber.
5. The stove in accordance with claim 2, wherein said preheating means further comprises fuel/air igniter means in said chamber aligned with said flame holder for causing initial com-bustion of the fuel/air mixture exiting said flame holder for preheating said catalytic coating on said plate, thereafter com-bustion occurring only at said plate by the catalyst.
6. The stove in accordance with claim 1, wherein said diffuser further comprises a pan support extending about said plate grid, said support including support surfaces extending outwardly beyond the exit face of said plate.
7. The stove in accordance with claim 1, wherein said plate comprises a monolithic member provided with between 200 and 400 openings per square inch.
8. The stove in accordance with claim 1, wherein said catalytic coating is selected from the group consisting of plat-inum, palladium, rhodium and iridium.
9. The stove in accordance with claim 1, wherein said catalytic coating extends to a depth of 1 or 2 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US627,433 | 1975-10-30 | ||
| US62743384A | 1984-07-03 | 1984-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1266212A true CA1266212A (en) | 1990-02-27 |
Family
ID=24514621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000486201A Expired CA1266212A (en) | 1984-07-03 | 1985-07-02 | Catalytic camping stove |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE902808A (en) |
| CA (1) | CA1266212A (en) |
| CH (1) | CH662048A5 (en) |
| DE (1) | DE3523811A1 (en) |
| FR (1) | FR2567251B1 (en) |
| GB (1) | GB2161923B (en) |
| IT (1) | IT1237561B (en) |
| NL (1) | NL8501860A (en) |
| SE (1) | SE463228B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202132A (en) * | 1987-03-05 | 1988-09-21 | Secr Defence | Portable cooker |
| NZ245975A (en) * | 1993-02-23 | 1997-05-26 | John Stuart Fleming | Heating apparatus with catalytic converter in secondary combustion chamber and typically for visible flame gas heater |
| DE10029148A1 (en) * | 2000-06-14 | 2001-12-20 | Dietrich Schroeck | Radiation heater has porous catalytic combustion surface/radiation surface, raised pressure chamber, diffuser for feeding combustion air/heating gas mix to rear of combustion surface |
| ITTV20060151A1 (en) * | 2006-08-30 | 2008-02-29 | Guido Calzavara | MULTIFUNCTION PORTABLE STOVE WITH INFRARED CERAMIC PLATE |
| CN102109169B (en) * | 2010-08-30 | 2012-09-19 | 余姚市飞天低碳节能灶芯研发有限公司 | Thinned infrared stove core for Chinese food |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB382472A (en) * | 1931-01-09 | 1932-10-27 | Henri Georges Terret | Improvements in heating apparatus employing catalytic reactions |
| FR1028507A (en) * | 1949-11-29 | 1953-05-26 | Appliance to keep food warm | |
| FR1083586A (en) * | 1953-06-09 | 1955-01-11 | Catalytic Heating Method and Apparatus | |
| FR1124557A (en) * | 1955-03-31 | 1956-10-15 | D E O M | Improvements to catalytic combustion devices |
| DE1103542B (en) * | 1955-10-04 | 1961-03-30 | Iadessins Etudes Outil Mecaniq | Heat appliance, especially cooker, operated by liquid gas |
| DE1401165A1 (en) * | 1959-07-30 | 1968-10-03 | Universal Oil Prod Co | Catalytic radiant heater |
| FR1385572A (en) * | 1963-11-28 | 1965-01-15 | Catalytic burner | |
| US3441359A (en) * | 1967-04-26 | 1969-04-29 | Engelhard Ind Inc | Catalytic radiant heater |
| US3662737A (en) * | 1970-06-29 | 1972-05-16 | Nupar Mfg Co Inc | Catalytic heater |
| FR2208087B1 (en) * | 1972-11-28 | 1976-07-02 | Applic Gaz Sa | |
| FR2223631A1 (en) * | 1973-02-19 | 1974-10-25 | Antargaz | Burning element of catalytic combustion gas burner - is regularly apertured plate with catalytically treated surfaces |
| GB1551243A (en) * | 1975-05-30 | 1979-08-30 | Taymar Ltd | Gas control valves and adaptors therefor |
| FR2367247A1 (en) * | 1976-10-11 | 1978-05-05 | Pariente Roger | Catalytic burner for hydrocarbon gas - has bowl with perforated screen and cover dome coated by catalyst which is reactivated by secondary flame |
| GB2023266B (en) * | 1978-05-08 | 1982-10-20 | Johnson Matthey Co Ltd | Boiler utilizing catalytic combustion |
| JPS5770307A (en) * | 1980-10-16 | 1982-04-30 | Matsushita Electric Ind Co Ltd | Catalytic gas burner |
| DE3402760A1 (en) * | 1984-01-27 | 1985-08-01 | Marsteller & Killmann GmbH & Co KG, 4300 Essen | Cooker, in particular gas cooker for outside use |
-
1985
- 1985-06-27 SE SE8503197A patent/SE463228B/en not_active IP Right Cessation
- 1985-06-28 NL NL8501860A patent/NL8501860A/en not_active Application Discontinuation
- 1985-07-02 CH CH2821/85A patent/CH662048A5/en not_active IP Right Cessation
- 1985-07-02 IT IT8567607A patent/IT1237561B/en active
- 1985-07-02 FR FR858510097A patent/FR2567251B1/en not_active Expired - Lifetime
- 1985-07-02 GB GB8516668A patent/GB2161923B/en not_active Expired
- 1985-07-02 CA CA000486201A patent/CA1266212A/en not_active Expired
- 1985-07-03 BE BE0/215292A patent/BE902808A/en not_active IP Right Cessation
- 1985-07-03 DE DE19853523811 patent/DE3523811A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CH662048A5 (en) | 1987-09-15 |
| DE3523811C2 (en) | 1990-01-04 |
| GB8516668D0 (en) | 1985-08-07 |
| GB2161923A (en) | 1986-01-22 |
| SE8503197D0 (en) | 1985-06-27 |
| SE463228B (en) | 1990-10-22 |
| DE3523811A1 (en) | 1986-01-16 |
| SE8503197L (en) | 1986-01-04 |
| GB2161923B (en) | 1989-05-17 |
| NL8501860A (en) | 1986-02-03 |
| BE902808A (en) | 1986-01-03 |
| FR2567251B1 (en) | 1990-01-05 |
| FR2567251A1 (en) | 1986-01-10 |
| IT8567607A0 (en) | 1985-07-02 |
| IT1237561B (en) | 1993-06-08 |
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