Other

Timefoundry, LLC

Marco Prieschl

David F Herbstman

The navigation device includes a compass module including a base, a permanent dipolar magnet mounted for rotation relative to the base so that the magnet tends to align with the earth's magnetic north, a disc having a display fixed with respect to the magnet, and a transparent cover fixed to the base and arranged over the display surface. The display surface has map indicia for a pre-determined geographic area, map indicia being oriented to define a direction of magnetic north with respect to the map indicia, the indicia being aligned with respect to magnet so that the direction of magnetic north with respect to the map indicia coincides with earth's magnetic north when the magnet is aligned with earth's magnetic north. The compass module is fixed in a housing having a slot from which a folded map of the pre-determined area can be withdrawn, one end of the map remaining fixed to the housing. When the user rotates the map so that indicia on the disc are parallel to corresponding indicia on the map, the user will be correctly oriented to features on the map.

Navigation device

A timepiece includes a plurality of coaxially mounted disks which are driven with different periods, at least some of the disks having a time indicator area which is visible through one or more transmissive areas on one or more disks which lie over it. In a preferred embodiment, one of the disks is provided with three concentric annular zones and is driven with a period of sixty seconds. The outermost zone has discrete reflective areas which are visible through discrete transmissive areas in an overlying annular zone. The inner zones have discrete transmissive areas through which discrete reflective areas in two concentric annular zones on two respective lower disks are visible. The lowermost disk is driven with a period of twelve hours and is visible through a central transparent area of an intermediate disk which is driven with a period of sixty minutes. The appearance of the reflective areas through the transmissive areas gives an impression of a flowing change in patterns around each of the zones, while indicator areas visible through the transmissive areas give an indication of seconds, minutes, and hours. Other embodiments utilize zones having transmissive areas of varying radial width and/or transmissivity to achieve a unique visual effect. A simple embodiment has reflective areas on a stationary face and a single rotating disk thereover, with indicator areas having the form of conventional watch hands therebetween. The desired visual effect may be chosen by computer simulation of the transmissive and reflective areas. Likewise the timepiece may implement as a digital display.

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Brooklyn, NY, United States of America

Marco Prieschl