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The Lubrizol Corporation

John P Murphy

Richard J Murphy

Very thin films of liquid anti-reflection materials are applied to optical substrates to increase effectively visual clarity and visual acuity by reducing reflection light losses, reducing internal reflections and increasing light transmission. The primary properties of the materials which are useful as anti-reflection films are characterized as non-volatile, optically clear liquids having a refractive index less than the refractive index of the optical substrate to which they are applied. Low cost, effective anti-reflection coatings are thus applied to optical substrates, such as eyeglasses, using a single liquid layer of the anti-reflective material.

Single layer anti refelctive fillm for optical-substrates

The playback of a compact disc is enhanced by adhering to the compact disc an annular ring to increase the frictional engagement between the disc and the spindle upon which it turns. The playback is further enhanced by adhering a layer of soft, flexible material to dampen vibrations caused by the variations in speed by which the compact disc turns.

Compact disc playback enhancer

Chain hanger devices are described for attachment to a bicycle frame for supporting and retaining the drive chain vertically and laterally when the rear wheel and drive sprocket are removed from the frame. The hanger devices engage the chain without requiring manual manipulation of the chain. The rear wheel can be inserted into the frame again without physically handling the chain.

Chain catcher for bicycles

A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a minor amount, effective to inhibit the accumulation of black sludge in a gasoline fueled internal combustion engine, of an aliphatic hydrocarbon substituted aromatic hydrocarbon. The aliphatic hydrocarbon substituted aromatic hydrocarbon comprises a compound of the formula

Aliphatic hydrocarbon substituted aromatic hydrocarbons to control black

A moisture sensing detector of snow, sleet, ice and rain. The detector includes a sensing probe and coacting control circuitry for receiving the moisture signal from the probe and actuating associated equipment such as, for example, a railroad switch heater. The probe includes sturdy substantially elongated electrically charged aluminum electrodes spaced apart a very small distance (1/8' gap for example) by fiberglass strip insulation. Any moisture (even a drop of water) bridging the small gap completes a circuit between the electrodes which triggers the control circuit into actuating the railroad track switch heater or any like equipment. The electrodes are substantially elongated to provide a large sensing area. A heating unit is secured to one electrode to heat the entire length of the probe thereby melting any ice, sleet and snow (since they do not conduct an electrical current) thus permitting the probe to detect resultant moisture. The probe has a sharp upper edge cross sectional profile to forestall the accumulation of debris thereon. If debris should stay on the probe, its long length allows accumulation of significant amounts of debris without affecting sensitivity to moisture detection. A thermostat in the control circuitry turns on the probe at predetermined ambient temperature above the moisture freezing point. In another embodiment, the heating unit structure is substituted for one of the electrodes in the probe.

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Willoughby, OH, United States of America

John P Murphy