The Ohio Art Company

Sensitron, Inc.

Michael A Gilano

Gordon B Langford

An acceleration change detection system, which in a preferred embodiment is used as an impact detection system, detects whether a deflection sensor is deflected. The magnitude and/or direction of the impact may be considered. The system may include one or more than one deflection sensor. The invention may have particular use in a system that determines whether to deploy an air bag in a vehicle. The system may employ an open or enclosed chassis. The deflection sensors may deflect against deflection structures, which may be in various shapes. The deflection sensors have an electrical parameter (such as resistance) that changes upon deflection of the deflection sensor. In certain embodiments, the deflection sensor is ordinarily held in place by a movement inhibitor, which may include, for example, a magnetic, spring, clip, or stiff substrate. A large impact may create a force great enough to overcome the magnetic or mechanical force of the movement inhibitor. Deflection sensors may be arranged to detect movement in the x, &minus;x, y, &minus;y, z, and &minus;z directions. Electrical circuitry may produce a voltage that is indicative of the change in resistance, which in turn is indicative of the extent of deflection. The extent of deflection is an indication of the magnitude of the impact. Determining circuitry interprets changes in the electrical parameter(s) to determine information regarding the impact and, perhaps, trigger an air bag. The movement detection system also may be used to detect skidding or other movement of the vehicle.

Impact detection system

An apparatus for providing a magnetic visual display in which a magnetic field is exposed to a dispersion medium sealed between two surfaces and having distributed therein randomly-oriented magnetically-active flakes, thereby causing alignment of a portion of the flakes and allowing transmission of light through the dispersion medium in the region of the aligned flakes to form an image by the contrast between the areas of aligned and randomly-oriented flakes. The contrast may be enhanced by a light source on the opposite side of the device from the viewer. The image may be colored by coloring either of the surfaces, the dispersion medium, the flakes or the light from the light source.

Magnetic visual display

An apparatus and method for providing a magnetic display in which a magnetic field produces visual patterns upon exposure to the apparatus. The apparatus comprises an enclosure which contains magnetically active flakes held within a dispersion medium which holds the magnetically active flakes in suspension, yet allows alignment of the flakes along the flux lines of the magnetic field when the flakes are exposed to the locus of the magnetic field.

Growing community of inventors

Irvine, CA, United States of America

Michael A Gilano