Variable parameter smoking machine
US4019366A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Nov 4, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/3406
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A variable parameter smoking machine for smoking one or more cigarettes that allows adjustment of the puff flow, duration, and interval for the cigarettes being smoked. Cigarette holders are placed in fluid circuit parallel with dummy air-flow resistance valves, and either the holder or dummy load is placed in operative communication with a continuous vacuum source by a solenoid-operated valve associated with each holder and dummy load. A flow-adjustable valve is also associated with each holder and dummy load. Each holder-dummy-valve system is connected to a pressure manifold, which in turn is connected through a circuit having a flowmeter and flowmeter bypass line arranged in parallel to the continuous vacuum source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.