Cartridge as well as air analysis method and apparatus using it

Details Cartridge as well as air analysis method and apparatus using it Cartridge as well as air analysis method and apparatus using it

1999-03-31

2000-03-21

Redding, David A.

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving viable micro-organism

435 34, 4352883, 4353051, 4353054, 4353091, C12Q 124, C12M 300

Patent

active

060401532

ABSTRACT:
The cartridge has a body (2) with a grid (7) and an annular wall (8) oriented transversely to this grid and surrounding it, and having a layer (3) of growth media and a flexible fluid-tight film (4) tensioned over an end surface of the annular wall (8) and delimiting an end surface of the layer of growth media (3).
According to the method, the surface of the layer of growth media (3) delimited at the time of manufacture by the tensioned film (4) is struck with air jets in order to impact on this surface the microorganisms present in the air.
The apparatus has a positioning support common to a sieve for forming the air jets and to the body (2) of the cartridge (1).

REFERENCES:
patent: 3338794 (1967-08-01), Bladel
patent: 3684660 (1972-08-01), Kereluk et al.
patent: 3886047 (1975-05-01), Billups, Jr.
patent: 3922905 (1975-12-01), Roth
patent: 4326028 (1982-04-01), Brown
patent: 4912037 (1990-03-01), Lemonnier
Search Report from the "Institut National de la Propriete Industrielle", French Application No. 9805166; dated Feb. 8, 1999; Examiner: A. Coucke (2 pages).

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