Measuring and testing – With fluid pressure – Leakage
Patent
1982-01-19
1984-05-01
Goldberg, Gerald
Measuring and testing
With fluid pressure
Leakage
222 54, 239 49, 239 53, G01M 320
Patent
active
044453647
ABSTRACT:
Sources which emit tracer gas at a known constant rate are positioned throughout a building. Samples of air are collected in selected rooms with constant rate adsorbent samplers. Samplers are analyzed in a laboratory to determine the tracer gas concentration during the period sampled, which concentration is compared to the known volume of the building to determine air infiltration rates. The tracer gas emission rate is rendered independent of room temperature by allowing the gas to escape through specially designed orifices which automatically open and close in response to changes in temperature. In one design, an orifice is formed in a material which expands and contracts with variations in temperature surrounded by a second, less elastic material. In another design, the area of an orifice is changed by a needle valve imbedded in a material which expands and contracts with temperature variations to move the needle in and out of the orifice. In another design, a bimetallic coil is positioned in the bottom of a container for adjusting the length of tracer impregnated material projecting out of an opening in the container. In another design, a bimetallic coil slides a valve which opens and closes an orifice in response to temperature changes. In another design, the bimetallic coil in a circular thermometer is connected to a tracer impregnated wire extending through a rim of an enclosure to adjust the length of wire projecting out of the enclosure. An alternative temperature-independent device uses thermostatically controlled enclosures to maintain constant source temperature.
REFERENCES:
patent: 3285470 (1966-11-01), Frei et al.
patent: 3325318 (1967-06-01), Paullukonix
patent: 3342990 (1967-09-01), Barrington et al.
patent: 3578758 (1971-05-01), Altshuler
patent: 3690151 (1972-09-01), Briggs
patent: 3920987 (1975-11-01), Anbar et al.
patent: 3962916 (1976-06-01), Bouchy et al.
patent: 3991680 (1976-11-01), Dietz et al.
patent: 4016743 (1977-04-01), Henderson et al.
patent: 4028928 (1977-06-01), Van Dalen et al.
Dempsey John C.
Stieff Lorin R.
Creighton Wray James
Goldberg Gerald
Roskos Joseph W.
Taggents, Inc.
LandOfFree
Method and apparatus for measuring air infiltration rate into bu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for measuring air infiltration rate into bu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring air infiltration rate into bu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2025728