Abstract: An electric snowmobile has: a frame having a tunnel; a seat; at least one ski operatively connected to the frame; a drive track disposed at least in part under the tunnel; an electric motor supported by the frame, the electric motor being operatively connected to the drive track; a battery pack connected to the frame and electrically connected to the electric motor; a heater fluidly connected to the battery pack; a pump fluidly connected to the heater and the battery pack for circulating coolant between the heater and the battery pack; a charger electrically connected to the battery pack; and a charging port connected to the frame. The charger and heater are electrically connected in parallel to the charging port such that the heater is powered via the charging port by an external power source selectively connected to the charging port and not via the charger or the battery pack.

Abstract: A vent for an enclosure of a vehicle for ventilating the enclosure via a hole in an exterior surface of the enclosure to atmosphere, the vent comprising: a flange portion for resting on the exterior surface of the enclosure, the flange portion having an opening for overlapping with the hole; one or more side portions extending from the flange portion to form an interior of the vent, the one or more side portions for maintaining a cap portion in a spaced apart relationship with the flange portion, the one or more side portions having a plurality of louvers for directing air with respect to the interior; the cap positioned over the flange portion for covering over the opening to provide for the interior, the cap portion having a pair of angled portions opposed to one another, the pair of angled portions for directing the air over the vent during travel of the vehicle; and a corrugated filter positioned in the interior and interposed transversely between the opening and the atmosphere, the corrugated filter plat

Abstract: A ridge vent for ventilating a roof of a building via a hole along a roof ridge to atmosphere, the ridge vent comprising a first ridge vent panel: a flange portion for resting on the roof, the flange portion having an opening for overlapping with the hole, the flange portion having a first flange portion positioned to one side of the opening and a second flange portion positioned to another side of the opening, such that the first flange portion and the second flange portion are at an acute angle with respect to one another; a frame portion coupled to the flange portion and having sides extending upwardly from the flange portion about the opening, the frame portion for maintaining a cap portion in a spaced apart relationship with the flange portion; the cap portion connected to the frame portion and covering over the opening; a first corrugated filter plate extending between the cap portion and the flange portion and positioned transversely between the opening and the atmosphere, the first corrugated filter p

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating a roof of a building via a hole in the roof to atmosphere, the roof vent comprising: a flange portion for resting on the roof, the flange portion having an opening for overlapping with the hole; a frame portion for maintaining a cap in a spaced apart relationship with the flange portion; the cap connected to the frame portion and covering over the opening; and an integrated shield mounted on the flange portion and extending transverse to the flange portion on a side of the flange portion configured for facing a peak of the roof, the integrated shield spaced apart from the frame portion by a predefined distance and for deflecting water running down the roof to either side of the roof vent.

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating a roof of a building via a hole in the roof to atmosphere, the roof vent comprising: a flange portion for resting on the roof, the flange portion having an opening for overlapping with the hole; a frame portion for maintaining a cap in a spaced apart relationship with the flange portion; the cap connected to the frame portion and covering over the opening; and an integrated shield mounted on the flange portion and extending transverse to the flange portion on a side of the flange portion configured for facing a peak of the roof, the integrated shield spaced apart from the frame portion by a predefined distance and for deflecting water running down the roof to either side of the roof vent.

Abstract: There is disclosed a snow proof roof vent for ventilating the roof of a building to the atmosphere. The improved roof vent includes a flange portion dimensioned and configured to lay against the roof, the flange portion having a central opening to let air vent from the attic. The roof vent further includes a collar portion extending from the flange portion and enclosing the central opening and a cap dimensioned and configured to cover over the collar portion and cover over the central opening. The cap is dimensioned and configured to provide a passage through which air can pass between the atmosphere and the central opening. The collar portion also includes a filter plate enclosed by the cap and interposed between the central opening and the passage, the filter plate having a pore size sufficient to permit air to pass through but block the passage of snow.

Abstract: A ridge vent for ventilating a roof of a building via a hole along a roof ridge to atmosphere, the ridge vent comprising a first ridge vent panel: a flange portion for resting on the roof, the flange portion having an opening for overlapping with the hole, the flange portion having a first flange portion positioned to one side of the opening and a second flange portion positioned to another side of the opening, such that the first flange portion and the second flange portion are at an acute angle with respect to one another; a frame portion coupled to the flange portion and having sides extending upwardly from the flange portion about the opening, the frame portion for maintaining a cap portion in a spaced apart relationship with the flange portion; the cap portion connected to the frame portion and covering over the opening; a first corrugated filter plate extending between the cap portion and the flange portion and positioned transversely between the opening and the atmosphere, the first corrugated filter p

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating the roof of a building to the atmosphere. The roof vent includes a flange portion to lay against the roof, the flange portion having an opening to let air vent from the interior of the building (e.g. an attic). The roof vent can optionally include a collar portion extending from the flange portion and enclosing, at least in part, about a periphery of the opening and a cap dimensioned and configured to cover over the opening (including the hole in the roof) and optionally over the collar portion. The cap is configured to provide a passage (between the flange portion and the cap) through which air can pass between the atmosphere and the opening. The roof vent also includes a corrugated filter plate, e.g. partially enclosed by the cap, and interposed between the central opening and the passage, the corrugated filter plate having a pore size sufficient to permit air to pass through but inhibit the passage of snow particles, cinder particles and/or water droplets there-through.

Abstract: A roof vent for ventilating a sloped roof of a building via a hole in the roof to atmosphere. The roof vent includes a flange portion for affixing on the roof, the flange portion having an opening in communication with the hole in the roof.

Abstract: There is disclosed a snow proof roof vent for ventilating the roof of a building to the atmosphere. The improved roof vent includes a flange portion dimensioned and configured to lay against the roof, the flange portion having a central opening to let air vent from the attic. The roof vent further includes a collar portion extending from the flange portion and enclosing the central opening and a cap dimensioned and configured to cover over the collar portion and cover over the central opening. The cap is dimensioned and configured to provide a passage through which air can pass between the atmosphere and the central opening. The collar portion also includes a filter plate enclosed by the cap and interposed between the central opening and the passage, the filter plate having a pore size sufficient to permit air to pass through but block the passage of snow.