A simple,inexpensive, constant-flow pump for delivering liquid reinforcers |
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| Authors: | Bernard T. Engel Reginald E. Quilter |
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| Affiliation: | 1. National Institute of Child Health and Human Development, Gerontology Research Center, Bethesda, Maryland
2. The Baltimore City Hospitals, 21224, Baltimore, Maryland
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| Abstract: | A liquid reinforcer, controlled by a solenoid valve venting to atmospheric pressure, eliminates the chance of interrupted flow due to a clogged valve. The device maintains a constant flow at adjustable rates, and is inexpensive and easy to construct. |
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