Repository: UIHistories Project: Board of Trustees Minutes - 1968 [PAGE 1065]

EXTRACTED TEXT FROM PAGE:

1968]

UNIVERSITY OF ILLINOIS

1013

ionizing radiations when administered either shortly before or after being exposed to radiations. This effect was still pronounced up to two weeks after drug administration at high dose (70 m g / k g ) . When exposure took place within one-half hour after drug administration, this protective effect was independent of drug doses (from 0.70 m g / k g tip to 70 m g / k g ) : The Committee recommends that the rights of the University in this invention be assigned to the University of Illinois Foundation for study, further development, and possible patent application. 4. Point contact metal-oxide-metal diode and point contact metal-oxide-thin film diode — Samuel I. Green, Research Assistant in Electrical Engineering, U r bana, and Jack R. Baird, formerly Assistant Professor of Electrical Engineering, Urbana, inventors; developed under the sponsorship of the Rome Air Development Center. A physical model is proposed to explain detection of microwave signals by a metal point set on a flat metal base. An asymmetry in the high frequency V-I characteristics of such a device is predicted by noting that the skin effect in the metal base constrains the AC component of the electron current in the base to move in a transverse direction to that which contributes to tunneling through the oxide layer between metals. On the other hand, electrons in the whisker move such that a large part of their momentum is in the proper direction to contribute to tunneling. The Committee recommends that the rights of the University in this invention be assigned to the inventors, subject to the rights and regulations of the sponsoring agency. 5. Multi-path fiber optic probe — John Martin Hughes, Fellow in Mechanical Engineering, Urbana, inventor; developed under the sponsorship of the United States Public Health Service. This fiber optic probe device for measuring properties of particulate suspensions is novel in its configuration of fiber optics light guides combined with probe head and platinum plated pyrex probe stem. The new part is, in addition to configuration and combination, the multiple light attenuation feature or scattering which results in a higher probe sensitivity. Another new item is the use of platinum plating to bleed electrical charge from the probe tip to ground. The Committee recommends that the rights of the University in this invention be assigned to the inventor, subject to the approval of the sponsoring agency. 6. An economical single scale pressure readout system for ionization gauges — C. D. Hendricks, Professor of Electrical Engineering and of Nuclear Engineering, Urbana, and John A. Robertson, Research Assistant in Electrical Engineering, Urbana, inventors. This single scale ionization gauge pressure readout system is novel because the filament current regulator generally employed in ionization gauge readout systems has been eliminated, and a logarithmic solution to the pressure equation: P = 1/S • I i / I e is performed electronically. The Committee recommends that the rights of the University in this invention be assigned to the inventors. 7. Multi-path fiber optic probe — James J. Stukel, Research Assistant P r o fessor of Mechanical Engineering, Urbana, inventor; developed under the sponsorship of the United States Public Health Service. This invention relates to instruments for measuring the properties of a particulate suspension. Light is transmitted by a fiber optic light guide to the face of a glass tube. The light then passes through the particulate suspension. The transmitted light is redirected 180° by a " U " shaped light guide back through the suspension. Having made a second pass through the suspension the light is transmitted by a third light guide to a photocell. A series of "U" shaped guides could be used for multiple passes. The degree of light attenuation in the suspension is related to the density of the particulate suspension. The Committee recommends that the rights of the University in this invention be assigned to the inventor, subject to the approval of the sponsoring agency. 8. Mirabilicides — Bernard Greenberg, Professor of Biological Science, Chicago Circle, inventor; developed under the sponsorship of the United States Public Health Service. A strain of Proteus mirabilis produces at least three substances in culture (reaching high potency some ten days after incubation) which destroy the organisms listed below, at pHs below 4.5. As many as 10' to 10s organisms are destroyed within two minutes exposure at a p H of 2.9. The broth in which the organism has been grown may be acidified and left to stand for one