Abstract: A system for increasing flue gas side draft in a heater or boiler assembly is disclosed utilizing an impeller assembly to enable an increase in firing rates beyond the ability of the exhaust stack and to reduce the size of the low flue gas side pressure drop heat pipe air preheaters.

Abstract: A convertible roof for an automotive vehicle is provided. In one aspect of the present invention, a retraction mechanism couples first, second and third roof sections to a vehicle. Another aspect of the present invention employs a flexible cable interconnecting a rear linkage with a forward pivot assembly to pivot the first roof section relative to the second roof section. Another aspect of the present invention provides that the three roof sections are substantially horizontally oriented in a stowed position.

Abstract: A convertible roof is provided which includes a folding mechanism that couples a pair of adjacent roof rails together with at least two links to form a linkage assembly with at least four-bars without the adjacent pair of roof rails being directly connected to one another. A convertible roof having a folding mechanism that controls retraction of the convertible roof so that a portion of the convertible roof serves as a cover that conceals a portion of the convertible roof within the stowage compartment is also provided.

Abstract: A convertible roof for an automotive vehicle is provided. In one aspect of the present invention, a retraction mechanism couples first, second and third roof sections to a vehicle. Another aspect of the present invention employs a flexible cable interconnecting a rear linkage with a forward pivot assembly to pivot the first roof section relative to the second roof section. Another aspect of the present invention provides that the three roof sections are substantially horizontally oriented in a stowed position.

Abstract: A convertible roof is provided which includes a folding mechanism that couples a pair of adjacent roof rails together with at least two links to form a linkage assembly with at least four-bars without the adjacent pair of roof rails being directly connected to one another. A convertible roof having a folding mechanism that controls retraction of the convertible roof so that a portion of the convertible roof serves as a cover that conceals a portion of the convertible roof within the stowage compartment is also provided.

Abstract: A convertible roof having a backlite that is substantially vertical when the convertible roof is in a raised position is provided. An automatically powered actuator used to actively control retraction of a convertible roof and a backlite frame is provided. Actively controlling a roof bow immediately forward of a backlite frame is provided.

Abstract: A covering system for a rear passenger seat of an automotive vehicle includes a panel that is positionable in an extended position that generally conceals the rear passenger seat and a retracted position that generally reveals the passenger seat. The covering system further includes an automatic drive system capable of driving the panel between the extended position and the retracted position. The covering system of the present invention enables a four-seat convertible vehicle to be quickly and conveniently converted into a two-seat roadster-style vehicle.

Abstract: A covering system for a rear passenger seat of an automotive vehicle. The covering system includes a panel that is positionable in an extended position that generally conceals the rear passenger seat and a retracted position that generally reveals the passenger seat. The covering system further includes an automatic drive system capable of driving the panel between the extended position and the retracted position. The covering system of the present invention enables a four-seat convertible vehicle to be quickly and conveniently converting into a two-seat roadster-style vehicle.