Abstract: Disclosed herein is a scissor lift comprising a passenger basket. The scissor lift also comprises a base that comprises wheels. The scissor lift further comprises a scissor extension mechanism between the passenger basket and the base. The scissor extension mechanism is configured to raise the passenger basket in a first direction relative to the base and lower the passenger basket in a second direction, opposite the first direction, relative to the base. The scissor lift additionally comprises a through-beam sensor system co-movably coupled to the scissor extension mechanism. The through-beam sensor system moves in a third direction, perpendicular to the first direction and the second direction, when the scissor extension mechanism raises the passenger basket and moves in a fourth direction, opposite the third direction, when the scissor extension mechanism lowers the passenger basket.

Abstract: Disclosed herein is a scissor lift comprising a passenger basket. The scissor lift also comprises a base that comprises wheels. The scissor lift further comprises a scissor extension mechanism between the passenger basket and the base. The scissor extension mechanism is configured to raise the passenger basket in a first direction relative to the base and lower the passenger basket in a second direction, opposite the first direction, relative to the base. The scissor lift additionally comprises a through-beam sensor system co-movably coupled to the scissor extension mechanism. The through-beam sensor system moves in a third direction, perpendicular to the first direction and the second direction, when the scissor extension mechanism raises the passenger basket and moves in a fourth direction, opposite the third direction, when the scissor extension mechanism lowers the passenger basket.

Abstract: Disclosed is a collision avoidance method, controller, and system for a scissor lift. The scissor lift includes a passenger basket, a scissor extension mechanism, and a base with wheels. The collision avoidance system includes at least one of a basket proximity sensor sub-system that has proximity sensor elements disposed on the passenger basket. The collision avoidance system also includes a basket contact sensor sub-system that has impact sensor elements disposed within padded bumpers coupled to the passenger basket and a through-beam sensor sub-system mounted to the scissor extension mechanism. Still further, the collision avoidance system includes a wheel position transducer that is coupled to at least one of the wheels of the base.

Abstract: A liquid air freshener dispensing device for a duct for dispensing liquid freshener into air being heated and moved by a furnace. The liquid air freshener dispensing device for a duct includes a container having a top wall, a bottom wall and a peripheral wall extending between the top and bottom walls. A fragrant liquid is located in an interior of the container. An intake conduit extends through the top wall and into the interior of the housing such that a first end of the intake conduit is positioned in the housing and a second end of the intake conduit is located outside of the housing. A pump is in fluid communication with the second end of the intake conduit. The pump is operationally coupled to a power supply of a blower member. An exit conduit has a first end in fluid communication with the pump. The exit conduit extends into a duct such that a second end of the exit conduit is located in an interior space of the duct. The blower member blows air over a heating member and into the heating duct.