Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1981-01-28
1983-08-16
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
7386414, 7386441, 222101, 436180, 215 32, G01N 100, B65D 3528
Patent
active
043991033
ABSTRACT:
In the blood Bank area of a clinical laboratory a blood dispensing device is described capable of being used in conjunction with tubing containing blood which is attached to a blood donor bag. The end of said tubing is fed through one end of said device until it passes through the opposite end of the device at which point means are available to cut the tubing. The device is fitted with a knurled wheel or roller guided by an inclined track or ramp which upon turning the wheel in one direction causes the tubing to be squeezed or compressed thus allowing blood to be dispensed in a controlled dropwise fashion. In the opposite direction the wheel decompresses the tubing allowing it to be fed through once again in order to repeat the process as desired.
REFERENCES:
patent: 2681504 (1954-06-01), Fox
patent: 2812880 (1957-11-01), Altman
patent: 3327898 (1967-06-01), Farr
patent: 3579303 (1971-05-01), Pickering
patent: 4195526 (1980-04-01), Amos et al.
patent: 4210026 (1980-07-01), Amos et al.
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