Abstract: A handle assembly includes a first handle, a second handle, and a magnet. The first handle is moveably attached to a first base. The second handle is moveably attached to a second base. The magnet magnetically couples the first handle to a striker plate. Movement of the first handle with respect to the first base uncouples the magnet and the striker plate. Movement of the second handle with respect to the second base moves the first handle with respect to the first base. A handle assembly includes a first handle and a magnet. The first handle is pivotable about a first axis. The magnet magnetically couples the handle assembly to a doorjamb. Pivotal movement of the first handle uncouples the handle assembly from the doorjamb. The handle assembly may include a second handle pivotable about a second axis. Pivotal movement of the second handle pivots the first handle.

Abstract: A handle assembly includes a first handle, a second handle, and a magnet. The first handle is moveably attached to a first base. The second handle is moveably attached to a second base. The magnet magnetically couples the first handle to a striker plate. Movement of the first handle with respect to the first base uncouples the magnet and the striker plate. Movement of the second handle with respect to the second base moves the first handle with respect to the first base. A handle assembly includes a first handle and a magnet. The first handle is pivotable about a first axis. The magnet magnetically couples the handle assembly to a doorjamb. Pivotal movement of the first handle uncouples the handle assembly from the doorjamb. The handle assembly may include a second handle pivotable about a second axis. Pivotal movement of the second handle pivots the first handle.

Abstract: In a fluid passageway a filter panel is selectively moved out of its normal position extending across the fluid passageway to a dumping position out of the fluid passageway such that particulate matter collected thereon is removed responsive to the movement of a baffle plate from a normal position out of the fluid passageway into a position blocking the fluid passageway. Thereby passage of air through the fluid passageway is prevented during the time the filter panel is out of its normal position. In a preferred embodiment a linking mechanism connects the baffle plate and filter panel together so that movement of the baffle plate to the blocking position causes the filter panel to drop to a dumping position and return of the filter panel to its filter position causes the baffle plate to drop to its normal position. The whole sequence is instituted responsive to buildup of particulate matter on the filter panel.