Smokeless ashtray system
US5542438A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Apr 21, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24F19/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A smokeless ashtray system includes a vacuum manifold connecting a plurality of ashtrays to a charcoal filter and a vacuum blower/motor assembly. The vacuum manifold includes spiral wound metal flexible metal tubing segments secured to connectors by heat shrink tubing. L connectors connect end most ashtray locations to the manifold, T connectors connect intermediate ashtray locations, and a four-way connector connects a central ashtray location to the manifold and to the charcoal filter and blower/motor assembly. Each ashtray location includes a flue member having a first end threaded into the associated connector and a second end inserted within a recess formed centrally in a bottom surface of a cup-shaped ashtray. A connector mounting bracket includes locating apertures engaging alignment pins extending from a flat upper surface of the connector, and a flange on the flue member clamps the bracket to the connector. Screws secure mounting flanges of the bracket to the underside of a table or other mounting surface. A central chimney in the ashtray includes a shield dome covering an open top end to prevent ashes and other debris from entering the air flow path. A replaceable disposa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.