Measuring and testing – Sampler – sample handling – etc. – Automatic control
Patent
1980-10-29
1984-02-21
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
Automatic control
7386323, 7386434, G01N 124
Patent
active
044322488
ABSTRACT:
An air sampler constructed as an integrated unit which can be attached to the clothing of personnel operating in an area where the air must be sampled. The sampler includes a pump, a damper, a regulator, a filter for removing dust or dirt from the air being sampled, and collecting or processing means for the sampled air. The pump is driven by a motor provided with a control which maintains the flow of air through the sampler constant. The regulator is connected directly between the inlet and the outlet of the sampler. It includes a pair of chambers separated by a flexible diaphragm, one chamber connected to the outlet and the other to the inlet. For a pressure differential exceeding a predetermined magnitude between the outlet chamber and the inlet chamber, the diaphragm by its flexing opens a valve to permit air to flow from the outlet to the inlet. The filter is in a transparent container so that it can be seen and removed when it becomes excessively loaded with dirt. The outlet from the filter downstream is near its top so that moisture is prevented from flowing into the air channel downstream from the filter.
REFERENCES:
patent: 2942550 (1960-06-01), Carter
patent: 3295359 (1967-01-01), Peck
patent: 3501899 (1970-03-01), Allen
patent: 3677065 (1972-07-01), Davis
patent: 3803810 (1974-04-01), Rosenberg
patent: 3855515 (1974-12-01), Hutchins, Jr.
patent: 3936237 (1976-02-01), Chattopadyay
patent: 3965747 (1976-06-01), McCorkle
patent: 3976457 (1976-08-01), Martin
patent: 4140436 (1979-02-01), Schumacher et al.
patent: 4269059 (1981-05-01), Baker
Diamond Hymen
Gilian Instrument Corporation
Swisher S. Clement
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