CA2273639A1 - Spark arrestor for a chimney - Google Patents
Spark arrestor for a chimney Download PDFInfo
- Publication number
- CA2273639A1 CA2273639A1 CA 2273639 CA2273639A CA2273639A1 CA 2273639 A1 CA2273639 A1 CA 2273639A1 CA 2273639 CA2273639 CA 2273639 CA 2273639 A CA2273639 A CA 2273639A CA 2273639 A1 CA2273639 A1 CA 2273639A1
- Authority
- CA
- Canada
- Prior art keywords
- tubular member
- spark
- baffle
- retention tray
- exhaust gases
- 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.)
- Abandoned
Links
- 230000014759 maintenance of location Effects 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 24
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/04—Traps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
A spark arrestor for a chimney includes a hollow body having an interior cavity, an inlet and at least one outlet.
Several baffles are secured to the body and extend into the interior cavity. The baffles are arranged to provide a circuitous flow path between the inlet and the outlet. Sparks are unable to follow the circuitous path and become trapped within the body.
Several baffles are secured to the body and extend into the interior cavity. The baffles are arranged to provide a circuitous flow path between the inlet and the outlet. Sparks are unable to follow the circuitous path and become trapped within the body.
Description
TITLE OF THE INVENTION:
Spark Arrestor For A Chimney NAME ( S ) OF INVENTOR ( S ) Claude Gaumont FIELD OF THE INVENTION
The present invention relates to a spark arrestor for a chimney.
BACKGROUND OF THE INVENTION
Whenever wood is burned in a stove, there is a danger posed by sparks which are carried up the chimney. This danger is particularly acute when tenting, as the sparks burn holes in the tent and can potentially set the tent or surrounding foliage on fire.
SUMMARY OF THE INVENTION
What is required is a spark arrestor for a chimney which will prevent sparks from escaping into the atmosphere.
According to the present invention there is provided a spark arrestor for a chimney which includes a hollow body having an interior cavity, an inlet and at least one outlet.
Several baffles are secured to the body and extend into the interior cavity. The baffles are arranged to provide a circuitous flow path between the inlet and the outlet.
With the spark arrestor, as described above, a spark entering the inlet of the body on a stream of exhaust gases becomes trapped within the body when, due to its weight, it is unable to follow the stream of exhaust gases along the entire length of the circuitous path to the exit. There are different configurations for such a spark arrestor that would have utility, as will hereinafter be further described.
Spark Arrestor For A Chimney NAME ( S ) OF INVENTOR ( S ) Claude Gaumont FIELD OF THE INVENTION
The present invention relates to a spark arrestor for a chimney.
BACKGROUND OF THE INVENTION
Whenever wood is burned in a stove, there is a danger posed by sparks which are carried up the chimney. This danger is particularly acute when tenting, as the sparks burn holes in the tent and can potentially set the tent or surrounding foliage on fire.
SUMMARY OF THE INVENTION
What is required is a spark arrestor for a chimney which will prevent sparks from escaping into the atmosphere.
According to the present invention there is provided a spark arrestor for a chimney which includes a hollow body having an interior cavity, an inlet and at least one outlet.
Several baffles are secured to the body and extend into the interior cavity. The baffles are arranged to provide a circuitous flow path between the inlet and the outlet.
With the spark arrestor, as described above, a spark entering the inlet of the body on a stream of exhaust gases becomes trapped within the body when, due to its weight, it is unable to follow the stream of exhaust gases along the entire length of the circuitous path to the exit. There are different configurations for such a spark arrestor that would have utility, as will hereinafter be further described.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, wherein:
FIGURE 1 is a side elevation view, in section, of a spark arrestor for a chimney constructed in accordance with the teachings of the present invention.
FIGURE 2 is a side elevation view of the spark arrestor illustrated in FIGURE 1.
FIGURE 3 is a bottom plan view, in section, of the spark arrestor illustrated in FIGURE 1.
FIGURE 4 is an alternative embodiment of the spark arrestor for a chimney constructed in accordance with the teachings of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a spark arrestor for a chimney generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3. An alternative embodiment of spark arrestor, generally identified by reference numeral 100, will be described with reference to FIGURE 4.
Referring to FIGURE 1, spark arrestor 10 includes a body 11. Body 11 consists of a spark retention tray 12 having a bottom 14 with a peripheral edge 16, an aperture 18 in bottom 14 and a peripheral sidewall 20 extending upwardly from peripheral edge 16 of bottom 14. Peripheral sidewall 20 has an upper edge 22. As will hereinafter be further described, peripheral sidewall 20 serves as a third baffle around which exhaust gases are diverted. A cover member 24 overlies spark retention tray 12. Cover member 24 has a top 26 and a peripheral skirt 28 extending downwardly from top 26. A bottom edge 29 of peripheral skirt 28 extends below top edge 22 of peripheral sidewall 20 of spark retention tray 12. As will hereinafter be further described, peripheral skirt 28 serves as a fourth baffle around which exhaust gases are diverted.
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, wherein:
FIGURE 1 is a side elevation view, in section, of a spark arrestor for a chimney constructed in accordance with the teachings of the present invention.
FIGURE 2 is a side elevation view of the spark arrestor illustrated in FIGURE 1.
FIGURE 3 is a bottom plan view, in section, of the spark arrestor illustrated in FIGURE 1.
FIGURE 4 is an alternative embodiment of the spark arrestor for a chimney constructed in accordance with the teachings of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a spark arrestor for a chimney generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 3. An alternative embodiment of spark arrestor, generally identified by reference numeral 100, will be described with reference to FIGURE 4.
Referring to FIGURE 1, spark arrestor 10 includes a body 11. Body 11 consists of a spark retention tray 12 having a bottom 14 with a peripheral edge 16, an aperture 18 in bottom 14 and a peripheral sidewall 20 extending upwardly from peripheral edge 16 of bottom 14. Peripheral sidewall 20 has an upper edge 22. As will hereinafter be further described, peripheral sidewall 20 serves as a third baffle around which exhaust gases are diverted. A cover member 24 overlies spark retention tray 12. Cover member 24 has a top 26 and a peripheral skirt 28 extending downwardly from top 26. A bottom edge 29 of peripheral skirt 28 extends below top edge 22 of peripheral sidewall 20 of spark retention tray 12. As will hereinafter be further described, peripheral skirt 28 serves as a fourth baffle around which exhaust gases are diverted.
Top 26 of cover member 24 is spaced from upper edge 22 of peripheral sidewall 20 of spark retention tray 12 and peripheral skirt 28 is spaced from peripheral sidewall 20 of spark retention tray 12 thereby leaving an outflow channel 30 for exhaust gases between cover member 24 and spark retention tray 12. A tubular member 32 is secured in aperture 18 in bottom 14 of spark retention tray 12. Tubular member 32 has a first end 34 and a second end 36. First end 34 projects upwardly from bottom 14 of spark retention tray 12. As will hereinafter be further described, first end 34 of tubular member 32 serves as a first baffle around which exhaust gases are diverted. Referring to FIGURE 2, second end 36 of tubular member 32 serves as a coupling, whereby second end 36 of tubular member 32 is coupled with a remote end of a chimney 44.
Referring to FIGURE l, a second baffle 38 is secured to and depends from top 26 of cover member 24. Second baffle 38 extends downwardly past first end 34 of tubular member 32.
Second baffle 38 is spaced from and surrounds tubular member 32 coaxially, as illustrated in FIGURE 3, thereby leaving an inflow channel 40 for exhaust gases between tubular member 32 and baffle 38, as illustrated in FIGURE 1. Exhaust gases rising up the chimney and into tubular member 32 encounter top 26 of cover 24 and must pass downwardly through inflow channel 40 into spark retention tray 12 prior to passing through outflow channel 30 into the atmosphere. Sparks carried by the exhaust gases cannot navigate the circuitous flow path provided by tubular member 32 (first baffle), second baffle 38, peripheral sidewall 20 (third baffle) and depending skirt 29 (fourth baffle) and are deposited in spark retention tray 12 prior to the exhaust gases exiting via outflow channel 30 between depending skirt 28 and peripheral sidewall 20.
Referring to FIGURE 4, alternative embodiment of spark arrestor 100 includes a first tubular member 102 and a second tubular member 133 positioned in a "T" configuration. For the purpose of orientation for this description first tubular member 102 can be considered to have a top 104, a bottom 106, an aperture 108 approximately centrally located in bottom 106, and opposed ends 110. Exit apertures 112 are at each of opposed ends 110. Tubular member 133 is secured in aperture 108 in bottom 106 of horizontal tubular member 102. A pair of first baffles 114 extends vertically from bottom 106 toward each of opposed ends 110. Each of first baffles 114 has a top edge 116 spaced from top 104 of horizontal tubular member 102, thereby forming a passage 118 between first baffle 114 and top 104. A pair of second baffles 120 extends vertically from bottom 106 of horizontal tubular member 102 at a position between first baffle 114 and aperture 108. Each of second baffles 120 has a top edge 122 spaced from top 104 of horizontal tubular member 102, thereby forming a passage 124 between second baffle 120 and top 104. First baffle 114, second baffle 120, and a portion 126 of bottom 106 of horizontal tubular member 102 define a spark retention tray 128.
A third pair of baffles 130 are secured to and depend from top 104 of horizontal tubular member 102. Each of third baffles 130 extends downwardly past top edge 116 of first baffle 114 and top edge 122 of second baffle 120. Each third baffle 130 is located between and spaced from first baffle 114 and second baffle 120, thereby leaving an inflow channel 132 for exhaust gases between second baffle 120 and third baffle 130. Exhaust gases rising up the chimney and into horizontal tubular member 102 encounter top 104 and must pass downwardly through inflow channel 132 into spark retention tray 128 prior to passing through outflow channel 134 and passage 118 into the atmosphere at exit aperture 112. Sparks carried by the exhaust gases are deposited in spark retention tray 128 prior to the exhaust gases exiting via exit aperture 112.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Referring to FIGURE l, a second baffle 38 is secured to and depends from top 26 of cover member 24. Second baffle 38 extends downwardly past first end 34 of tubular member 32.
Second baffle 38 is spaced from and surrounds tubular member 32 coaxially, as illustrated in FIGURE 3, thereby leaving an inflow channel 40 for exhaust gases between tubular member 32 and baffle 38, as illustrated in FIGURE 1. Exhaust gases rising up the chimney and into tubular member 32 encounter top 26 of cover 24 and must pass downwardly through inflow channel 40 into spark retention tray 12 prior to passing through outflow channel 30 into the atmosphere. Sparks carried by the exhaust gases cannot navigate the circuitous flow path provided by tubular member 32 (first baffle), second baffle 38, peripheral sidewall 20 (third baffle) and depending skirt 29 (fourth baffle) and are deposited in spark retention tray 12 prior to the exhaust gases exiting via outflow channel 30 between depending skirt 28 and peripheral sidewall 20.
Referring to FIGURE 4, alternative embodiment of spark arrestor 100 includes a first tubular member 102 and a second tubular member 133 positioned in a "T" configuration. For the purpose of orientation for this description first tubular member 102 can be considered to have a top 104, a bottom 106, an aperture 108 approximately centrally located in bottom 106, and opposed ends 110. Exit apertures 112 are at each of opposed ends 110. Tubular member 133 is secured in aperture 108 in bottom 106 of horizontal tubular member 102. A pair of first baffles 114 extends vertically from bottom 106 toward each of opposed ends 110. Each of first baffles 114 has a top edge 116 spaced from top 104 of horizontal tubular member 102, thereby forming a passage 118 between first baffle 114 and top 104. A pair of second baffles 120 extends vertically from bottom 106 of horizontal tubular member 102 at a position between first baffle 114 and aperture 108. Each of second baffles 120 has a top edge 122 spaced from top 104 of horizontal tubular member 102, thereby forming a passage 124 between second baffle 120 and top 104. First baffle 114, second baffle 120, and a portion 126 of bottom 106 of horizontal tubular member 102 define a spark retention tray 128.
A third pair of baffles 130 are secured to and depend from top 104 of horizontal tubular member 102. Each of third baffles 130 extends downwardly past top edge 116 of first baffle 114 and top edge 122 of second baffle 120. Each third baffle 130 is located between and spaced from first baffle 114 and second baffle 120, thereby leaving an inflow channel 132 for exhaust gases between second baffle 120 and third baffle 130. Exhaust gases rising up the chimney and into horizontal tubular member 102 encounter top 104 and must pass downwardly through inflow channel 132 into spark retention tray 128 prior to passing through outflow channel 134 and passage 118 into the atmosphere at exit aperture 112. Sparks carried by the exhaust gases are deposited in spark retention tray 128 prior to the exhaust gases exiting via exit aperture 112.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims (6)
1. A spark arrestor for a chimney, comprising:
a hollow body having an interior cavity, an inlet and at least one outlet;
several baffles secured to the body and extending into the interior cavity, the baffles being arranged to provide a circuitous flow path between the inlet and the outlet.
a hollow body having an interior cavity, an inlet and at least one outlet;
several baffles secured to the body and extending into the interior cavity, the baffles being arranged to provide a circuitous flow path between the inlet and the outlet.
2. A spark arrestor for a chimney, comprising:
a spark retention tray having a bottom;
a cover member overlying the spark retention tray to form an interior cavity;
a tubular member in fluid communication with the bottom of the spark retention tray;
a first baffle extending into the interior cavity around the tubular member;
a second baffle depending from the cover member into the interior cavity;
the spark retention tray having a peripheral sidewall forming a third baffle;
an outflow channel for the exit of exhaust gases between the cover member and the peripheral sidewall of the spark retention tray; and an inflow channel for exhaust gases to enter the interior cavity through the tubular member, the exhaust gases having to follow a circuitous path past the first baffle, the second baffle, and the third baffle to reach the outflow channel.
a spark retention tray having a bottom;
a cover member overlying the spark retention tray to form an interior cavity;
a tubular member in fluid communication with the bottom of the spark retention tray;
a first baffle extending into the interior cavity around the tubular member;
a second baffle depending from the cover member into the interior cavity;
the spark retention tray having a peripheral sidewall forming a third baffle;
an outflow channel for the exit of exhaust gases between the cover member and the peripheral sidewall of the spark retention tray; and an inflow channel for exhaust gases to enter the interior cavity through the tubular member, the exhaust gases having to follow a circuitous path past the first baffle, the second baffle, and the third baffle to reach the outflow channel.
3. The spark arrestor as defined in Claim 2, wherein the cover member has a depending skirt forming a fourth baffle.
4. A spark arrestor for a chimney, comprising:
a hollow body having an interior cavity, the body consisting of a first tubular member coupled with a second tubular member in a "T" configuration and having an inlet and at least one outlet;
several baffles secured to the body and extending into the interior cavity, the baffles being arranged to provide a circuitous flow path between the inlet and the outlet.
a hollow body having an interior cavity, the body consisting of a first tubular member coupled with a second tubular member in a "T" configuration and having an inlet and at least one outlet;
several baffles secured to the body and extending into the interior cavity, the baffles being arranged to provide a circuitous flow path between the inlet and the outlet.
5. The spark arrestor as defined in Claim 4, wherein the first tubular member has a top and a bottom;
the second tubular member is coupled to the bottom of the first tubular member the inlet is through the second tubular member;
a first baffle extends upwardly from the bottom of the first tubular member around the second tubular member;
a second baffle depends from the top of the first tubular member into the interior cavity and surrounds the first baffle;
a third baffle extends upwardly from the bottom of the first tubular member around the second baffle;
an outflow channel for the exit of exhaust gases at opposed ends of the first tubular member; and exhaust gases entering the interior cavity through the second tubular member have to follow a circuitous path past the first baffle, the second baffle, and the third baffle to reach the outlets.
the second tubular member is coupled to the bottom of the first tubular member the inlet is through the second tubular member;
a first baffle extends upwardly from the bottom of the first tubular member around the second tubular member;
a second baffle depends from the top of the first tubular member into the interior cavity and surrounds the first baffle;
a third baffle extends upwardly from the bottom of the first tubular member around the second baffle;
an outflow channel for the exit of exhaust gases at opposed ends of the first tubular member; and exhaust gases entering the interior cavity through the second tubular member have to follow a circuitous path past the first baffle, the second baffle, and the third baffle to reach the outlets.
6. A spark arrestor for a chimney, comprising:
a spark retention tray having a bottom with a peripheral edge, an aperture in the bottom and a peripheral sidewall extending upwardly from the peripheral edge of the bottom, the peripheral sidewall having an upper edge;
a cover member overlying the spark retention tray, the cover member having a top and a peripheral skirt extending downwardly from the top, the top being spaced from the upper edge of the peripheral sidewall of the spark retention tray and the peripheral skirt being spaced from the peripheral sidewall of the spark retention tray thereby leaving an outflow channel for exhaust gases between the cover member and the spark retention tray;
a tubular member secured in the aperture in the bottom of the spark retention tray, the tubular member having a first end and a second end, the first end projecting upwardly from the bottom of the spark retention tray;
the second end of the tubular member serving as a coupling, whereby the second end of the tubular member is coupled with a remote end of a chimney;
a baffle secured to and depending from the top of the cover member, the baffle extending downwardly past the first end of the tubular member, the baffle being spaced from and surrounding the tubular member thereby leaving an inflow channel for exhaust gases between the tubular member and the baffle, such that exhaust gases rising up the chimney and into the tubular member encounter the top of the cover and must pass downwardly through the inflow channel into the spark retention tray prior to passing through the outflow channel into the atmosphere, sparks carried by the exhaust gases being deposited in the spark retention tray prior to the exhaust gases exiting via the outflow channel.
a spark retention tray having a bottom with a peripheral edge, an aperture in the bottom and a peripheral sidewall extending upwardly from the peripheral edge of the bottom, the peripheral sidewall having an upper edge;
a cover member overlying the spark retention tray, the cover member having a top and a peripheral skirt extending downwardly from the top, the top being spaced from the upper edge of the peripheral sidewall of the spark retention tray and the peripheral skirt being spaced from the peripheral sidewall of the spark retention tray thereby leaving an outflow channel for exhaust gases between the cover member and the spark retention tray;
a tubular member secured in the aperture in the bottom of the spark retention tray, the tubular member having a first end and a second end, the first end projecting upwardly from the bottom of the spark retention tray;
the second end of the tubular member serving as a coupling, whereby the second end of the tubular member is coupled with a remote end of a chimney;
a baffle secured to and depending from the top of the cover member, the baffle extending downwardly past the first end of the tubular member, the baffle being spaced from and surrounding the tubular member thereby leaving an inflow channel for exhaust gases between the tubular member and the baffle, such that exhaust gases rising up the chimney and into the tubular member encounter the top of the cover and must pass downwardly through the inflow channel into the spark retention tray prior to passing through the outflow channel into the atmosphere, sparks carried by the exhaust gases being deposited in the spark retention tray prior to the exhaust gases exiting via the outflow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2273639 CA2273639A1 (en) | 1999-06-04 | 1999-06-04 | Spark arrestor for a chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2273639 CA2273639A1 (en) | 1999-06-04 | 1999-06-04 | Spark arrestor for a chimney |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2273639A1 true CA2273639A1 (en) | 2000-12-04 |
Family
ID=30774268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2273639 Abandoned CA2273639A1 (en) | 1999-06-04 | 1999-06-04 | Spark arrestor for a chimney |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2273639A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2594277C2 (en) * | 2014-12-12 | 2016-08-10 | Федеральное агентство научных организаций Федеральное Государственное Бюджетное Научное Учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ФГБНУ ВИЭСХ) | Spark arrester for furnaces (versions) |
-
1999
- 1999-06-04 CA CA 2273639 patent/CA2273639A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2594277C2 (en) * | 2014-12-12 | 2016-08-10 | Федеральное агентство научных организаций Федеральное Государственное Бюджетное Научное Учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ФГБНУ ВИЭСХ) | Spark arrester for furnaces (versions) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4476852A (en) | Add-on catalytic damper assembly | |
| CA2193896A1 (en) | Alcohol fuel burner | |
| US5749719A (en) | Velocity sealed flare tip | |
| CA2273639A1 (en) | Spark arrestor for a chimney | |
| RU97109728A (en) | TORCH UNIT FOR COMBUSTION OF RELEASE GASES | |
| US4234328A (en) | Oil separator device | |
| JPH08210645A (en) | Gas cooker | |
| JP4009365B2 (en) | Exhaust device for discharging the exhaust discharged from the water heater to the kitchen duct side | |
| EP0404615A1 (en) | Combined ventilation appliance for a living room | |
| US2608169A (en) | Draft head for refuse burners | |
| US4317662A (en) | Oil separator device | |
| JPH0221688Y2 (en) | ||
| JPH04108121U (en) | gas burner | |
| SE439215B (en) | RECOVERY DEVICE FOR CATALYTIC OXIDATION OF VETGAS IN THE GASES FROM AN ACCUMULATOR AND USE OF THE SAME | |
| JP3080747U (en) | Incinerator smoke exhaust system | |
| EP1365194B1 (en) | Chimney-stack | |
| JP2003061829A (en) | Smokeless roaster | |
| FR2624585A1 (en) | SMOKE EVACUATION DEVICE FOR BURNER-HEATED APPARATUS | |
| JPH0724235U (en) | Flyer | |
| GB2364114A (en) | Balanced flue systems | |
| KR200158421Y1 (en) | Ceramic grille burner | |
| JPH0356741Y2 (en) | ||
| JPS6016839Y2 (en) | Rectifier for combustion equipment in the human waste tank of a vacuum car | |
| CA2088670A1 (en) | Smoke generator | |
| JPS5813053Y2 (en) | Marine engine breather device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |