Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1987-03-17
1989-02-21
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422 58, 422 61, 436164, 436165, 435 33, 435 40, 435293, 435301, 435810, G01N 128, G01N 2100, G01N 3122
Patent
active
048063169
ABSTRACT:
A substantially rigid, multi-well, self-pipetting device for use in chemical, immunochemical and microorganism analysis is provided. It includes a frame and a plurality of test wells disposed within the frame. A filing manifold communicates with each of the test wells through a filling passageway. A docking port on the periphery of the device receives a reservoir holding a fluid specimen. The docking port communicates with the filling manifold through a filling port and a filling channel. A vent control system also communicates with the test wells and is comprised of one or more vent manifolds, and/or valves to a vent manifold, and/or one or more vent holes to the ambient atmosphere. Any vent holes present are temporarily closed. With the device in its operational position, the test wells, filling channel, filling manifold and filling port are located at a level lower than the surface of the fluid in the reservoir, and the vent manifold and/or vent holes are positioned higher than the surface of the fluid in the reservoir. The test wells are connected to the filling manifold and the vent control system according to the filling sequence. The reservoir is also connected to the vent control system through a vent port and a vent channel. In use, the fluid specimen in the reservoir flows to the filling manifold and fills the test wells vented to the reservoir or to the ambient atmosphere.
REFERENCES:
patent: 3957583 (1976-05-01), Gibson et al.
patent: 4018652 (1977-04-01), Lanham et al.
patent: 4116775 (1978-09-01), Charles et al.
patent: 4207394 (1980-06-01), Aldridge, Jr. et al.
patent: 4318994 (1982-03-01), Meyer et al.
Johnson Raymond
Livingston Dwight
Tite Robert C.
Wood-Helie Sheila J.
Allen Mary M.
Becton Dickinson and Company
Kummert Lynn
Richman Barry S.
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