| 摘要 |
A system (10) for removing smoke from ashtrays (12) includes a vacuum manifold (110, 150, 200, 350, 360) connecting ashtrays (12) to a charcoal filter and vacuum blower/motor assembly (400). The vacuum manifold includes flexible tubing segments (350, 360) secured to connectors (110, 150). Each ashtray (12) location includes a flue member (250) having a first end connected to an associated first stage filter element (300) and a second end inserted within a recess (34) formed centrally in a bottom surface (17) of a cup-shaped ashtray (12) and through an upstanding chimney (18) in the ashtray (12). The flue member (250) includes an upper end extending through an open upper end (23) of the central chimney (18) and provided with a circumferentially extending inlet slot (251) for the induction of smoke. A shield portion (20) of an ashtray cover assembly (50) overlies the upper ends of the flue (250) and chimney (18) to prevent ashes and other debris from entering the air flow path. A replaceable disposable first stage filter element (300) connected to the flue member (250) filters smoke prior to passage into the manifold, thus reducing tar fouling of the system. Each ashtray (12) includes a screen (51) and cover assembly (50) including a slide plate (58) for closing the ashtray (12) when not in use. A control box (500) includes an on/off switch, a power on LED, and may optionally include a service needed LED activated by monitoring load on the motor (420) to indicate filter clogging. |
