41 results about "Noxious fumes" patented technology

The instant invention pertains to a road vehicle's axial flow cooling fan which normally draws cooling air from in front of the vehicle and blows it into the engine bay. The instant invention includes a control circuit for the fan motor that provides variable speed and bi-directional, or reverse and normal, fan operation. Reverse fan operation blows air from the engine bay through the radiator and out the front of the vehicle, and normal fan operation blows into the engine bay. Two input sensors feed the control circuit, one for road speed of the vehicle and other for engine temperature. When the engine is below its operating temperature and the vehicle is moving, the fan is made to blows in reverse at a speed proportional to road speed so as to block cold ram air from entering and blasting onto a warming engine. This speeds engine warm-up to reduce emissions, improve fuel economy, and speed windshield defogging. The fan may also be made to blow in reverse when the engine is cold and the vehicle is stopped, in order that exhaust-heated air from the exhaust manifold behind the engine, may be drawn forward over the engine block to speed its warming. When the engine is above its operating temperature and the vehicle is idling or moving slowly, as in traffic, then the control circuit causes the fan to again blow in reverse cooling both the radiator and the engine bay components and preventing hot, noxious fumes from vehicles in front from being drawn into the vehicle. Blowing in reverse in traffic conditions also eliminates hot air looping back to the front of the car and drawn in through the radiator. As vehicle speed increases, the fan is made to revert to normal operation augmenting ram air flow through the radiator.

A premium ventilated toilet having an automated toilet ventilation system for removing noxious fumes from a bowl area of the toilet is disclosed. The ventilation system is mostly built-in to the toilet (e.g., ventilation ducts, and sensors) so that it is unobtrusive and attractive looking, however the active parts (e.g., a blower unit containing a blower impeller, a backflow shutoff valve, and electronic control circuitry) are contained in an simple housing that is unobtrusively and removably attached to the surface (preferably on the side) of the toilet base for simplified installation, maintenance, and replacement as needed. Automated operation is enabled by a non-contact occupancy (proximity) sensor and a flush sensor, both preferably built into a flush handle of the toilet. Detection of occupancy causes the ventilation system to operate and flushing turns it off.

The system embodying the invention is employed to cool the interior of a normally closed area such as a garage or storage area, and / or to remove any noxious fumes or undesirable odors from inside the garage by moving outside air into the garage and providing means for that inside air and the fumes or odors in it, if any, to be removed to the outside ambient atmosphere. The system includes one or more fans installed in the upper section of the garage door, and the garage door is opened or closed by moving it in any well-known manner either by rolling it's hinged panels upward to a horizontal position from its normally-closed vertical position, or, when it is a solid door, tilting the entire garage door so that it is substantially horizontal instead of vertical and is located above the garage floor a sufficient distance to drive vehicles that will fit into the garage though the door opening. Those fans have a power cord that extends from a power supply position generally near the garage door opener that is secured to the garage ceiling and powers the garage door from its closed position to its open position, and vice versa, and that power cord is also secured to the garage door in the vicinity of the fan or fans used to move air into and out of the garage when the garage door is closed. The power cord is spring-urged to minimize its relatively free section between the power source and the place where it is secured to the garage door in the vicinity of the fan or fans where it provides power to the fan motor or motors when desired and appropriate. In the preferred embodiment the power cord is wound on a reel that is spring loaded to urge the reel in the rotational direction to wind the part of the power cord that is between the reel and the fan motor or motors, keeping the relatively free section of the power cord in tension so that it does not form any dangerous hanging loops when the garage door is moving from its open position to its closed position. There are also lesser desirable alternatives to apply a spring-loading to the power cord to keep it sufficient tension that it does not form such loops when the garage door is being opened.

An Attic Floor Joist Grid System for Weight Bearing Storage called an Attic Grid System. This system features low profile, flat, open and high strength grid panels that are supported by a joist system. The panels install directly onto the ceiling joists in an attic or storage area for residential and commercial applications. The panels are nominal widths that extend essentially to the center points of supporting joists. The system provides a simple and strong support surfaces which only requires simple, easy to use tools for installation. The panels are easily trimmed to size for non-standard operations and for encircling mechanical and electrical objects. The system is “see-through” and permits full air movement. Hence it does not contribute to moisture entrapment, mold and mildew. The materials are fire resistant and do not collapse or emit toxic fumes in the presence of a flame.

A muffler filter within a housing (1) is disclosed, which is capable of being secured to an automobile rear bumper adjacent the exhaust of an automobile. The filter housing (1) is attached to vehicle with top (11) and bottom (12) clamps. The filters (3, 4) are attached to removable cartridge holder (2). The fireproof band (6) and filter interlocks (7) are attached over housing (1) for locking the filter. The movable slide (8) is attached to housing (1) for connecting filter to bottom of bumper. Fire proof strap (9) for connecting filter to top of bumper is located on top of housing (1). The filters (3, 4) are mainly activated charcoal filters combined with ionic transport membrane system and comprises absorbent material in a matrix capable of absorbing a plurality of noxious fumes emitted from the exhaust the automobile. The filters are capable of being replaced.

The invention relates to a fire-proof board used for antique buildings and a production method thereof, belongs to the field of refractory materials, and aims to solve the technical problems of the prior art, such as large density, poor fire resistance, low strength and release of noxious fumes during fire. The fire-proof board used for antique buildings contains the following components in weight part: calcined magnesium oxide 18-24, industrial magnesium chloride 7-15, glass fibers 3-6, light-weight fillers 35-60, modifiers 1-2 and water 20-35. The production method of the fire-proof board comprises the following steps: (1) mixing calcined magnesium oxide, light-weight fillers and glass fibers at the give ratio to obtain a mixture; (2) mixing industrial magnesium chloride with water to form solution, adding the solution into the mixture under stirring; 3 adding the modifiers during the stirring procedure; 4 stirring for 1-5 min and discharging; and 5 molding to obtain boards, drying and curing. The fire-proof board is suitable for fire protection of antique buildings.

The invention relates to a lotion for treating the oxidized layer on the surface of copper and copper alloy, which is made of the following raw materials in parts by weight: 90-220 parts of sulfuric acid, 40-90 parts of ammonium persulfate, 40-65 parts of glacial acetic acid, and benzene Azole 0.05‑0.2 part. The invention removes the oxide skin of copper and copper alloy products at one time, the inner and outer surfaces of the products and accessories are clean, the color is bright, uniform and shows the normal color of copper and copper alloys, there is no over-corrosion phenomenon, and the threads and accessories are free of any corrosion. damage; the process temperature range is wide, no heating is required in winter, and the natural environment can be produced; the operation is simple, the process parameters are easy to control, no need for frequent adjustments, high production efficiency, and low cost; copper and copper alloy product parts can be used in the same tank Liquid cleaning at the same time; no harmful gas volatilization, no need to add environmental protection equipment.