| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 454001000 | CHIMNEY OR STACK | 45 |
| 20110136423 | Large Diameter FRP Flues In Large Diameter Chimneys - Large diameter fiber-reinforced plastic (FRP) flues are installed inside large diameter concrete chimneys or steel structures, comprising a plurality of large diameter FRP cylindrical sections, jointed end to end and stacked up longitudinally. Large diameter cylinders are comprised of circumferential segments, side jointed together by means of chemical bonding and mechanical fastening to complete the enclosures. Longitudinal sides of each segment are designed in specific joints of inward flanges for connections. The novel mean for large diameter FRP flue design using compositional modular segments, accommodates rapid construction, shop fabrications, corrosion resistance for low maintenance, inertness of over a wide range of adverse, weather conditions for onsite vertical filament winding, overcomes the limitations or even infeasibility of monolithic large diameter FRP cylinders for shipping and transportation and eliminates needs of large opening on the outside chimney structures. In addition to the nature of filament wound FRP composites in low density and physical properties, this invention surpasses steel, alloy metal and conventional FRP flues in numerous aspects in quantity shop fabrications, lower costs, lighter weight, and easier installations, in flue gas desulfurization industries. | 06-09-2011 |
| 20110223848 | VENTILATION SYSTEM - A ventilation system including a heat recovery assembly having a first heat exchanger for heat recovery with a first flow path and a second flow path to exchange heat energy from air transported in one of paths to the other. A peripheral inlet to the first flow path is arranged to surround a central outlet of the second flow path and a peripheral inlet to the second flow path is arranged to surround a central outlet of the first flow path. The assembly further includes a peripheral outlet and a central inlet, the peripheral outlet arranged to surround the central inlet, and the heat recovery assembly is arranged such that air entering the peripheral inlet of the first flow path exits by the peripheral outlet; and air entering the central inlet will exit by the central outlet of the second flow path. | 09-15-2011 |
| 20120270487 | Duct - A duct including a duct body is disclosed. The duct is a hollow tube and includes an air channel and an exit end. The exit end has a windward portion and an air-guiding portion on two sides thereof. | 10-25-2012 |
| 20150316258 | Portable, Free-Standing Exhaust System - Devices, systems, and methods for portable, free-standing exhaust systems for exhausting gases from internal combustion type engines, including portable generators. Portable, free-standing exhaust system comprising a plurality of metal exhaust stack sections, forming a continuous hollow column; a housing stand with legs holding the column; a hanger bracket connecting the housing stand and a connector tube, including a separation space, which is connected to an exhaust pipe for exhausting gases. | 11-05-2015 |
| 454002000 | Vehicle | 1 |
| 20100056033 | MAGNETIC TAILPIPE EXHAUST NOZZLE DEVICE - The present invention is a tailpipe exhaust nozzle device that can be used with a vehicle with a side exhaust pipe that attaches magnetically to a vehicle exhaust removal system. The exhaust pipe nozzle device is made up of a body ring portion, a male adaptor that is integral with the body ring portion forming a clamp groove. There is also a plurality of magnets disposed on the male adaptor for attachment to the vehicle exhaust pipe removal system and a polymeric boot on the bottom of the body ring portion. The exhaust pipe nozzle device may or may not be in the shape of a cylinder The device also includes a 90 degree stainless steel transition elbow and galvanized steel tailpipe adapter which is attached to the end of the vehicle tailpipe. There is also a vertical stack exhaust pipe embodiment of the device. | 03-04-2010 |
| 454003000 | Chimneytop or stacktop structure (e.g., cowl) | 28 |
| 20080254729 | CHIMNEY LINING AND VENTING APPARATUS FOR USE WITH EMISSIONS FROM AN APPLIANCE, AND METHOD OF ASSEMBLY - A venting apparatus includes a projecting member with a projection base, and a mating socket member with a socket base, and first and second ducts in fluid communication with an appliance to vent emissions along an emission flow path. The projection base engages a first one, and the socket base engages a respective other one, of the first and second ducts. The projecting and socket members have default configurations. The projecting member is movable from the default configuration towards a deflected configuration, and biased for return therefrom. The first and second ducts are movable between sliding and locked configurations. In the sliding configuration, the projecting and socket members bear against one another, with the projecting member removed from the default configuration. In the locked configuration, the projecting member is in the default configuration, and secured to the socket member, such that the second duct securely engages the first duct. | 10-16-2008 |
| 20090042499 | Bernoulli Effect Smoke Draft Vent Assembly - A crown-like structure sits atop a chimney or smokestack as a specially formed chimney cap wherein passing air is required to take a somewhat convoluted path, providing a Bernoulli effect to improve smoke emission draft. Like at least two of its predecessors, the crown has two roof-like canopies, one within the other, each having a series of curved, bent strips separated to permit the wind-flow to pass through. As a departure from the past, the number of sets of strips, or leaves, within each canopy is raised to optimize performance, the preferred number thereof being three. | 02-12-2009 |
| 20090191802 | Chimney Duct - A chimney section and a chimney system for handling gases is disclosed. The chimney section is rounded but non-circular in cross sectional shape and includes at least one flange on one end of the section body. The chimney section may be formed from a single piece of material, wherein the section body and flange are integrally formed with one another. In the chimney system, the junction between two adjacent chimney sections may consist of a flange interface, which is formed by the adjacent flanges on opposing ends of two adjacent chimney sections. A V-band may be placed over the flange interface to further seal the interior of the chimney sections, and a sealant may be placed in various positions of the chimney system to hermetically seal the interior thereof from the exterior. In another embodiment of the chimney system, insulation is added to create an insulated chimney system. | 07-30-2009 |
| 454004000 | Cap closure | 11 |
| 20080207105 | CHIMNEY TERMINATION CAP - A chimney termination cap is provided with a body having a perimeter sidewall with a lower region adapted to be mounted to a chimney. The body has an opening for venting the chimney. A lid is mounted to a top of the body. A tray is mounted within the body for collecting precipitation. One of the body and the tray includes a drainage aperture for draining the precipitation from the tray. In one embodiment, the chimney termination cap includes an integrated slip-sleeve configured to receive a chimney flue or vent pipe. | 08-28-2008 |
| 20090029639 | Chimney sealing cap - A chimney sealing cap has a standard cap and a one-piece crown. The single-piece crown is directly attached to a chimney casing. The crown has a hole through which passes a chimney pipe. Mechanical fasteners are use to secure the single-piece crown onto the chimney casing and the standard cap is slipped over and fastened onto the single-piece crown using mechanical fasteners. | 01-29-2009 |
| 20090088060 | EXHAUST FLUE CAP AND FILTER DEVICE FOR A GAS FIRED APPLIANCE - An exhaust flue cap and filter device for a gas fired appliance in communication with an exhaust flue opening having an outer pipe and a coaxial liner. The device includes a tubular cap with an open lower end, an opposed open upper end, and a plurality of ventilation holes wherein the cap is receivable over the flue opening. A removable top is attached to and closes the open upper end of the tubular cap. A filter tray having a smaller diameter than the tubular cap includes a ledge extending radially inward from the tray. A removable catalytic converter filter insert within the tubular cap is supported on the ledge. | 04-02-2009 |
| 20110092147 | COVER FOR A CHIMNEY - The invention consists in a cover for a chimney, the cover comprising: a housing adapted to surround at least an upper end of a chimney, the housing having an expansion area for receiving emissions from the upper end of the chimney; a diffuser for diffusing the emissions from the upper end of the chimney into the expansion area; at least one air inlet for introducing air into the expansion chamber; at least one outlet for enabling air or emissions to be exhausted from the expansion chamber; wherein the housing is adapted such that emissions exiting the upper end of the chimney are diffused and expanded into the expansion chamber and a reduced pressure is created within the housing for drawing emissions from the upper end of the chimney into the expansion chamber. | 04-21-2011 |
| 20110312260 | ENERGY PRODUCING CHIMNEY CAP - A chimney cap provides not only protective features of conventional chimney caps, but may also provide energy production. The chimney cap may include one or more wind turbines that may capture wind energy and, with associated generators, may convert the wind energy to electricity. The chimney cap may also include one or more solar panels which may capture solar energy and convert that energy into electricity. A control box may receive the electricity from the generators and the solar panels and may provide the energy to a home, business, a storage device, the electric grid, or the like. | 12-22-2011 |
| 20120028558 | Chimney damper - A chimney damper for round flues that includes a rigid peripheral frame surrounding an open window area, a cap moveable toward and away from the open window to selectively close and open the same and springs interconnecting the cap and frame resiliently urging the cap to an open position. The square, rectangular, or round frame includes a shirt adapted to form or connect to a cylindrical base which comprises a round open window and thus can be configured for use on a round flue. The springs are preferably torsion springs and are located within the cap assembly and the open window area defined by the peripheral frame. The cap is guided during its movement toward and away from the frame by the springs and during such movement the cap rotates a partial turn relative to the frame to which it is connected by the springs. | 02-02-2012 |
| 20130045669 | OMNIDIRECTIONAL VENT CAP - An omnidirectional vent cap for venting holding tanks is provided. By providing a 360 degree venturi channel, the present invention can use a small movement of air to reduce the air pressure above the exhaust port to draw out vapors or gasses. Since the device is symmetrical about the central axis the movement of air can be from any direction relative to the device. | 02-21-2013 |
| 20130122794 | Chimney tee cap retainer assembly - A chimney tee cap retainer assembly comprising a cap, a first member comprising a guideway extending in a longitudinal direction, the first member connectable to the cap using a first fastener, a second member having a sprung end portion, the sprung end portion for releasably engaging a chimney surface, the second member adjustably engaged with the guideway using a second fastener, a third member having a sprung end portion, the sprung end portion for releasably engaging a chimney surface, the third member adjustably engaged with the guideway using a third fastener, and the second member and the third member each having a second member portion and a third member portion each extending normal to the first member and each extending in the same axial direction. | 05-16-2013 |
| 20140323025 | CHIMNEY CAP - A chimney cap includes an intake pipe extension and an exhaust pipe extension; each extension includes an opening, the exhaust opening being disposed above the intake opening. The cap further includes solid sidewalls surrounding the intake opening and a diffusion plate disposed over the intake opening and below the exhaust opening. | 10-30-2014 |
| 20160252247 | Retractable Hideaway Chimney Damper Cap | 09-01-2016 |
| 454005000 | Pivoted | 1 |
| 20130225057 | Vented Chimney Cap Assembly - An outdoor grill adjustable vented chimney cap assembly having a tubular base member with vent openings and a cap member having a cover member and a tubular body with vent openings, the base member being adapted to be mounted onto the chimney of a grill, the cap member being mounted onto the base member whereby the cap member can be rotated relative to the base member such that base vent members can be adjusted to control the amount of hot gases escaping from the grill. | 08-29-2013 |
| 454012000 | With means for mounting on brick-type chimney | 1 |
| 454013000 | Chimneytop structure extends within chimney | 1 |
| 454014000 | Means for mounting to inner wall | 1 |
| 20090181609 | RETRACTABLE HIDEAWAY CHIMNEY DAMPER CAP - An apparatus for a damper cap for a chimney flue includes a top plate having dimensions conforming to a top of the chimney flue. A bird and animal screen is joined to and extends from a bottom of the top plate. The screen has dimensions for insertion into the chimney flue. A rod joined to a center of the top plate extends downward into the chimney flue. A support structure is secured to an interior of the chimney flue. A mechanism is joined to the support structure and the rod for moving the rod in a vertical direction. In an open position the top plate is above the chimney flue to allow smoke to exit and the screen restricts birds and animals from entering. In a closed position the top plate is proximate the chimney flue restricting airflow into and out of the chimney flue and the apparatus is retracted into the flue. | 07-16-2009 |
| 454015000 | With rotary means in air current (e.g., fan, etc.) | 7 |
| 454016000 | Driven by external power source | 5 |
| 20120083194 | MECHANICAL DRAFT SYSTEMS - A representative mechanical draft system for drawing exhaust gasses from a chimney includes: an exhaust fan assembly having: a housing defining a chamber and having opposing openings, the opposing openings having a centerline extending therebetween, a first of the openings being operative to intake a flow of gasses, a second of the openings being operative to exhaust the flow of gasses from the chamber; and a centrifugal fan having a motor and an impeller, the motor being mounted external to the housing, the impeller being positioned within the chamber, a rotational axis of the impeller being inclined with respect to the centerline extending between the openings of the housing. | 04-05-2012 |
| 20120289138 | Reversible Draft Controllers And Exhaust Systems Incorporating Same - Reversible draft controllers and exhaust systems incorporating reversible draft controllers are disclosed. One system for controlling draft in a chimney includes a sensor for determining condition data, an axial fan blade, an electronically commutated motor (ECM), and a controller. The ECM is configured to rotate the fan blade in a first direction to increase draft in the chimney and in a second, opposite direction to decrease draft. The controller has a processor and a program of instructions executable by the processor to perform steps for controlling draft in the chimney with the fan blade. The steps include: comparing condition data from the sensor to set point data to determine if an intervention is required; addressing insufficient draft by actuating the ECM to rotate the axial fan blade in the first direction; and addressing excessive draft by actuating the ECM to rotate the fan blade in the second direction. | 11-15-2012 |
| 20130130605 | MOTOR-DRIVEN CHIMNEY DRAFT SYSTEM AND AN IMPELLER FOR USE IN THE SYSTEM - Impeller for a motor-driven chimney draft system, comprising a flue gas impeller ( | 05-23-2013 |
| 20140120818 | Attic Ventilation Turbine with Integrated Flex Blade - The invention is an Attic Ventilation Turbine with Integrated Flex Blade that has a Scoop-Blade Turbine Shroud with an integrated Fan constructed within the Shroud so that ambient wind rotates the Shroud. When the Shroud rotates, the Fan is rotated along with the Shroud so that warm air within the attic is pulled out of the attic through the Turbine. The Fan is constructed with a number of flexible metal Blades that flatten as the Shroud spins faster. | 05-01-2014 |
| 20160186993 | MOTOR-DRIVEN CHIMNEY DRAFT SYSTEM - The invention provides a motor-driven chimney draft system with a flue gas inlet, a flue gas outlet, a flue gas compartment in fluid communication with the flue gas inlet and with the flue gas outlet, the flow of flue gases in the flue gas compartment having a flow direction from the flue gas inlet to the flue gas outlet, a motor compartment with motor having a motor shaft extending through a separating wall of the flue gas compartment, the motor shaft carrying an impeller for driving the received flow of flue gases in the flow direction; each of the separating wall of the flue gas compartment and the separating wall of the motor compartment extends parallel to the flow direction of flue gases, and they are arranged facing each other so as to define an air space therebetween, where the air space has openings allowing ambient air to flow through the air space. | 06-30-2016 |
| 454017000 | Having air current responsive adjustment means (e.g., wind vane, etc.) | 1 |
| 20110092148 | Wind-Powered Ventilator That Creates Positive and Negative Pressures - A wind-powered rooftop ventilator that can create both positive and negative pressures to enable the exhaust and intake of air is described. The wind-powered rooftop ventilator includes a symmetrical cap that is aerodynamically shaped such that, when wind flows against the back of the symmetrical cap, a negative pressure area is created at the front opening of the symmetrical cap, thereby enabling the exhaust of air from an indoor area. When wind flows against the front opening of the symmetrical cap, the wind is captured by the symmetrical cap, thereby enabling the intake of air into an indoor area. As such, the wind-powered rooftop ventilator can create both positive and negative pressures without use of an external power source, fan, and/or worm gear. | 04-21-2011 |
| 454018000 | Cage-type blade set | 1 |
| 20170234013 | Roof Venting Arrangement and Method | 08-17-2017 |
| 454020000 | Having air current responsive adjustment means | 1 |
| 20130178140 | VOLUTE MECHANISM FOR BLOWER - A volute mechanism for a blower, the mechanism including: a volute ( | 07-11-2013 |
| 454033000 | Spiral or plural stacked rings | 1 |
| 20120178353 | Anticorrosive dust-collecting energy-saving chimney - An anticorrosive dust-collecting energy-saving chimney includes a chimney barrel. A hearth spiral line with a helix angle of 10˜80 degrees is arranged on an internal wall of the chimney barrel, and an outlet of an arc flue is arranged at an outside of a bottom of the chimney barrel and in communication with the hearth spiral line. A direction of spiral of the arc flue is the same as a direction of spiral of the hearth spiral line, and the arc flue is smoothly connected to the hearth spiral line. | 07-12-2012 |
| 454035000 | Spaced cap | 3 |
| 20090017741 | CHIMNEY CAP WITH REPLACEABLE OR RECYCLABLE CERAMIC CATALYTIC FILTER INSERT - A chimney cap device for a flue opening. The device includes a tubular housing with an open lower end and an open upper end. A plurality of louver openings in a lower portion of the tubular housing draw air into the tubular housing. A removable top is attached to the open upper end of the tubular housing wherein the top includes a plurality of exit openings. A liner is provided within and attached to the tubular housing. A removable catalytic converter insert is supported within the liner to treat emissions from a gas fired appliance. | 01-15-2009 |
| 20140187135 | Knockdown Multi-Flue Cap - A knock-down multi flue chiming cap that has a collapsible cage and separate cap lid. When the cage is fully collapsed, the cage and lid can be easily and safely transported. | 07-03-2014 |
| 454038000 | And skirt deflector extending outwardly from chimney or stack | 1 |
| 20140256242 | VENT CAP FOR CHIMNEY RELINING SYSTEM - A venting system includes a venting installation cap assembly for a venting system having at least an outer wall and an inner exhaust tube. The assembly includes an exhaust cap having an exhaust path coupled to the inner exhaust tube defined by a pipe section. A planar support ring having an annulus through which the pipe section passes rests on the outer tube or an adapter to the outer tube. The ring annulus surrounds the pipe section and has a diameter greater than a diameter of the outer wall. The planar support ring includes a plurality of airflow regions, surrounds the exhaust path and providing an airflow path between an exterior and a region between the outer wall and the inner exhaust tube. | 09-11-2014 |
| 454039000 | Having air current inducing jet | 1 |
| 454040000 | Plural, in-series jets | 1 |
| 20080200108 | High velocity and high dilution exhaust system - A nozzle for an exhaust fan that has a primary, central aperture for exhaust. Arranged around the periphery of the central aperture is a plurality of side apertures. The nozzle fits over the fan outlet. A stack may extend upwardly from the central aperture. Exhaust exiting the side apertures induces a flow of ambient air, especially when a windband encircles the nozzle. The ambient air increases the volume of exhaust exiting the windband. | 08-21-2008 |
| 454041000 | Having liquid drain | 1 |
| 20110151760 | EXHAUST STACK WITH BAFFLES - An exhaust stack is disclosed for protecting exhaust system components from liquid entering an exhaust stack discharge port. The exhaust stack includes a first section defining a first flow passage extending along a first longitudinal axis and a second section having an open end and defining a second flow passage extending along a second longitudinal axis. The exhaust stack further includes a liquid drain disposed in the first section and one or more baffles disposed in the second flow passage, wherein the one or more baffles are configured to block line-of-sight between the open second end and any inner surface below the liquid drain | 06-23-2011 |
| 454042000 | Having internal air current guide | 4 |
| 20080254730 | Passive Ventilation Stack - A passive ventilation stack for a room, building or the like comprises an interior space and first and second openings providing fluid communication between the interior space and a room to be ventilated, and the outside atmosphere. A control system is provided for varying the size of the openings, so as to cause natural heat exchange between relatively cool ventilation air entering the stack from outside and relatively warm air entering the stack from a room or building to be ventilated. | 10-16-2008 |
| 20090215375 | Fan Assemblies, Mechanical Draft Systems and Methods - Fan assemblies, mechanical draft systems and methods are provided. In this regard, a representative mechanical draft system for use with multiple appliances includes: a chimney operative to direct combustion products from multiple appliances; a chimney fan operative to draw combustion products from the chimney; and a controller operative to adjust an operating speed of the chimney fan such that, responsive to a change in pressure in the chimney, the controller adjusts the operating speed of the chimney fan to maintain a desired pressure in the chimney. | 08-27-2009 |
| 20090253359 | Tent chimney and mounted stove - A tapered pipe sleeve is used to butt join tent chimney tapered pipe sections. Chimney supports tent, chimney top boiler, hanging hoop and is strong enough using low weight thin metal. Other features important to this system are; an air cooled roof jack, a chimney base to bridge across melted snow under the chimney, a cylinder shaped stove mounted vertically on the chimney, a baffle for hot cook top and to stop hot fly ash, a cone shaped stove bottom with a grate at the small end, primary and secondary draft, a bottom heat shield/ash catcher. Recycled steel cans are used for stove and boiler. Stove and chimney can be large (8 man, 8 lbs.) or small (2 man, 2 lbs) made with steel and aluminium or even less weight with titanium. | 10-08-2009 |
| 20130109287 | CHIMNEY | 05-02-2013 |
| 454044000 | Having lining or sleeve | 7 |
| 20080220709 | MATERIALS AND METHODS FOR LINING A CHIMNEY - A method of relining a chimney includes: inserting a sleeve into a chimney; subsequently coating the sleeve with a flowable refractory material while the sleeve is positioned in the chimney. The flowable refractory material hardens on the sleeve to provide a refractory surface on the inner surface of the sleeve. The sleeve may be flexible or rigid, and may be lined with an insulating material. A high-temperature resistant fabric with an aluminum foil outer liner is preferred. The flowable refractory material may be a blend of inorganic materials and inert aggregates together with a high temperature resin bonding agent. The inert aggregates may include 50-80% Al | 09-11-2008 |
| 20100178860 | POSITIVE PRESSURE PIPE COUPLING - A vent pipe and system formed from such vent pipes is provided. The vent pipe includes an inner casing, an outer casing surrounding the inner casing, and an insulation material between the inner and outer casings. The vent pipe also includes, a male end portion, a female and portion for receiving a male end portion end of another vent pipe, the female end portion being opposite the male end portion. The vent pipe further includes a first flange extending from the male end portion, and a second flange extending from the female end portion for mating with the first external extending from the male portion of another vent pipe. | 07-15-2010 |
| 20100285730 | High velocity nozzle and windband assembly - A nozzle stack and windband for an exhaust fan that has a nozzle stack with two side apertures for exhaust. Arranged around the periphery of a central aperture in the conical nozzle stack are two side apertures. The nozzle stack fits over the fan outlet. A nozzle stack may extend upwardly from a central aperture. Exhaust exiting the two side apertures induces a flow, especially when the windband encircles the nozzle. | 11-11-2010 |
| 20150337421 | LEAN AUSTENITIC STAINLESS STEEL - An austenitic stainless steel composition including relatively low Ni and Mo levels, and exhibiting corrosion resistance, resistance to elevated temperature deformation, and formability properties comparable to certain alloys including higher Ni and Mo levels. Embodiments of the austenitic stainless steel include, in weight percentages, up to 0.20 C, 2.0-9.0 Mn, up to 2.0 Si, 15.0-23.0 Cr, 1.0-9.5 Ni, up to 3.0 Mo, up to 3.0 Cu, 0.05-0.35 N, (7.5(C))≦(Nb+Ti+V+Ta+Zr)≦1.5, Fe, and incidental impurities. | 11-26-2015 |
| 454047000 | Axially connected chimney or stack sections | 3 |
| 20130130606 | SWIVEL CONNECTOR FOR CHIMNEY SHIELD AND METHOD OF MAKING THE SAME - A swivel joint for a chimney shield is provided. In one embodiment, the swivel joint comprises a first cylindrical member and a second cylindrical member having an end portion received in an end portion of said first cylindrical member and rotatably coupled to the first cylindrical member. The first and second cylindrical members extends along a central longitudinal axis and the first and second cylindrical members rotate independently of one another about a plane perpendicular to the central longitudinal axis. | 05-23-2013 |
| 20130189915 | UNIVERSAL CHIMNEY PIPE COVER - A covering system that covers an end pipe of a chimney system. A portion of the end pipe protrudes from the roof of a house or building where the chimney system is located. The system comprises of at least two base supports that sit on the roof. A channel spanning around the end pipe of the chimney system that protrudes from the roof. The base supports are attached at the base of the channel. The base has a protruding section whose dimensions are larger than the channel. A collar covering having a first and a second opening. The collar covers the protruding section of the base by its first opening and receives the channel at its second opening. A crown top base that slides inside of the channel from the top. | 07-25-2013 |
| 20150056903 | EXHAUST ADAPTER, EXHAUST STRUCTURE FOR WATER HEATER, AND METHOD FOR INSTALLING EXHAUST ADAPTER - An exhaust adapter secures an exhaust tube relative to an exhaust pipe. The exhaust adapter is formed to have an annular shape enclosing a through hole, and is mounted on the outer peripheral surface of the exhaust tube and on the inner peripheral surface of the exhaust pipe by inserting the exhaust tube into the through hole. When the exhaust adapter is being fitted on the outer peripheral surface of the exhaust tube, the inner peripheral surface of the exhaust adapter presses the outer peripheral surface of the exhaust tube, and when the exhaust adapter is being fitted on the inner peripheral surface of the exhaust pipe, the outer peripheral surface of the exhaust adapter presses the inner peripheral surface of the exhaust pipe. | 02-26-2015 |
