Filter holder for cigarette research testing
US4184360A · kind A · utility
16Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1978 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Jun 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A disposable testing chamber for cigarettes which includes a thin, sheet-like transparent housing element for retaining a filter disc with a conical closure element having a press-fit into the housing to seal the disc and become self-retaining in the housing, each element having a peripheral, annular wall portion in a plane normal to the axis of the chamber to register with and lie adjacent to the periphery of the filter disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.