Animal husbandry – Milkers – With signals – indicators – registers – and timers
Patent
1986-07-17
1988-01-26
Pate, III, William F.
Animal husbandry
Milkers
With signals, indicators, registers, and timers
119 17, 12820418, A61D 704, A01K 103, A61B 508
Patent
active
047210605
ABSTRACT:
An exposure system for supplying a gaseous material, i.e. an aerosol, gas or a vapor, directly to the noses of experimental animals includes concentric vertical inner and outer manifolds. The outer manifold connects with the necks of a large number of bottles in which the animals are confined with their noses adjacent the bottle necks. Readily detachable small tubes communicate with the inner manifold and extend to the necks of the bottles. The upper end of the outer manifold and the lower end of the inner manifold are closed. Gaseous material is supplied to the upper end of the inner manifold, flows through the small tubes to points adjacent the noses of the individual animals, then is drawn out through the bottom of the outer manifold. The bottles are readily removable and the device can be disassembled, e.g., for cleaning, by removing the bottles, removing the small tubes, and lifting the inner manifold from the outer manifold. The bottles are supported by engagement of their necks with the outer manifold supplemented, if additional support is required, by individual wire cradles. The outer ends of the bottles are closed by plugs, through which pass metal tubes which receive the tails of the animals (usually rodents) and which serve to dissipate body heat. The entire device is mounted for rotation on turntable bearings.
REFERENCES:
patent: 2875729 (1959-03-01), Gibson
patent: 3548840 (1970-12-01), Baumgartner
patent: 4479493 (1984-10-01), Bung et al.
patent: 4528941 (1985-07-01), Spengler
Cannon et al.: "The Flow-Past Chamber: An Improved Nose-Only Exposure System for Rodents"; American Industrial Hygiene Journal, vol. 44, pp. 923-928, Dec., 1983.
Battelle Centres de Recherche de Geneve: "The Battelle Nose-Only Flow Past Inhalation Toxicology Exposure System" (1985).
Bass Edward W.
Cannon William C.
Decker, Jr. John R.
Battelle (Memorial Institute)
Chilcot Jr. Richard E.
Hauth Joseph J.
Pate III William F.
Sharp Robert Keith
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