Abstract:
A passive vent for venting a building enclosure having an opening in a roof portion, the vent being adjustable for mounting on roof portions of different slopes. The vent has a base pivotally attached to a vent structure with a pair of pivot joints. The vent structure has a collar attached to a vent body having a cover. At least one gas permeable screen is positioned on the vent body between the cover and the collar. The base comprises a lower attachment structure for attaching the base to the roof portion over the opening. An aperture through the lower attachment structure permits gas to pass in to and out of the opening in the roof portion through the base. A wall including a pair of opposed curvilinear wall sections surrounds the aperture. The pivot joints define a pivot axis about which the vent structure pivots along a range of angles relative to the base. The collar is sized and shaped to overlap portions of the aperture surrounding wall to maintain a continuous wall between the collar and the aperture surrounding wall along the range of angles. At least one securement means secures the vent structure in one of the range of angles relative to the base.
Abstract:
A hand held vacuum cleaner unit and docking assembly for a central vacuum system is shown. The hand held vacuum cleaner has a handle, a suction nozzle, a trigger switch to turn on a battery powered suction motor and an outlet port. The docking assembly fits into a central vacuum cleaner mounting plate, and provides a cradle to store the hand held vacuum cleaner. Recharging contacts, a latch mechanism, seals and an intake port are provided on the docking assembly. When the hand held unit is in the docking assembly it may be electrically charged, and emptied of dirt and debris by activation of the central vacuum system. The docking assembly also includes an access port for a conventional central vacuum hose.
Abstract:
The present invention relates to a grease trap system for wastewater systems, having an inlet pipe with a shut off valve, an outlet pipe with a shut off valve and a grease interceptor comprising a replaceable container body including means to trap fats, oils and grease within the body. The body has inlet and outlet slide couplers in opposed walls, and each coupler has an associated connecting means to sealingly fluidly connect the slide couplers to the inlet and outlet pipes. When the container body is disconnected from the pipes the slide couplers may also be sealed by a removable plug for transport. The slide couplers displace inwardly and outwardly relative to the container to give clearance between the pipes to remove the container. A method of replacing full containers with empty containers is also comprehended.
Abstract:
A passive venting device for venting enclosures comprising a base member, including an attachment portion and a vent structure for permitting gas and vapour to pass through the device; a cover member mounted to the base member so as to permit the flow of gas and vapour to the outside; and a precipitation baffle which is sized, shaped and positioned to interfere with the entry of precipitation from the outside. The device also has a ventilation pathway spaced from the roof so as to permit thick shakes or tiles to be installed right up to the device without interfering with ventilation.
Abstract:
A vent for venting a building enclosure having a perimeter flange having a nailing means being made of a material with a low coefficient of thermal expansion, such as for example sheet aluminum. The vent further includes a grill structure and a cap. The cap is made from dent resistant plastic to facilitate mass production and low return rates. In a preferred form of the invention the grill structure is also plastic and is molded onto the low coefficient of thermal expansion nailing means. A method of molding the grill structure onto the nailing means is also shown.
Abstract:
A dual function roof vent having a main body having an air passageway extending therethrough and being sized and shaped to fit onto an opening in a roof where the air passageway defines an air to flow path between the interior and the exterior of a building. The air passageway also defines a vent net free flow area. A collar is attached to and extends below the main body, and the collar is sized and shaped to fit through the roof opening. The collar including air inflow gaps, and a fan mount, with an electrically powered fan mounted to said fan mount. The collar air inflow area, including the air inflow gaps, is within about 5% of the vent net free flow area defined by the air passageway.
Abstract:
A hand held vacuum cleaner unit and docking assembly for a central vacuum system is shown. The hand held vacuum cleaner has a handle, a suction nozzle, a trigger switch to turn on a battery powered suction motor and an outlet port. The docking assembly fits into a central vacuum cleaner mounting plate, and provides a cradle to store the hand held vacuum cleaner. Recharging contacts, a latch mechanism, seals and an intake port are provided on the docking assembly. When the hand held unit is in the docking assembly it may be electrically charged, and emptied of dirt and debris by activation of the central vacuum system. The docking assembly also includes an access port for a conventional central vacuum hose.
Abstract:
A bathtub drain and overflow fitting kit is provided having a drain fitting, an overflow fitting and/or an adapter fitting, for connecting the bathtub drain and overflow openings to the household waste plumbing. The overflow fitting has a ball and socket connection between its inlet and outlet. Preferably, the overflow fitting has an abutment member which limits the range of angles created by the joint socket and joint ball within a range of angles to about 10°. The kit includes a gasket having a first sealing portion, a second sealing portion, and a tapered sealing portion between the first and second sealing portions, and is configured so that the same gasket may be used at the drain opening or the overflow opening. The drain and overflow fittings have at their inlets retaining features that interengage matching retaining features on the gasket to hold during installation.
Abstract:
An adaptor for a passive roof vent is presented having a base securable to a roof deck and an integrally moulded stepped collar extending from the base on one side for connecting to different air duct sizes which defines a discharge end for an air flow passageway. A central well is defined by the collar adjacent to and below the base and is open towards the other side of the base and has a hinge pin for at least one flapper valve retained in the well below the base. At least one flapper valve, hinged to the hinge pin, pivots about a closed position to which the flapper valve is biased by gravity and an open position in which the flapper valve is opened by air pressure from below within the air flow passageway. The flapper valve remains partially within the well when the flapper valve is open.
Abstract:
A diffuser baffle for use in an in-line wastewater grease interceptor. The diffuser baffle lies within a grease collecting chamber between the inflow and outflow of a grease interceptor. The diffuser baffle has an open bottom which is sized and shaped respectively to fit into the grease collecting chamber. The diffuser baffle has an end operatively connected to the inflow opening to permit wastewater to flow into the body through the open bottom. The baffle has a downstream end which includes a deflector portion to deflect a wastewater stream in a direction generally into the grease collecting chamber. The body also includes a number of apertures to permit the deflected wastewater stream to pass through the baffle and into the grease collecting chamber, where FOG will separate before waste water exits the chamber through the outlet baffle.