Magnetic compass
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 5, 1990
Issued Date -
N/A
app pub date -
Aug 12, 1988
filing date -
Jun 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved magnetic compass unit consists of a compass bowl, a card assembly pivotally supported on a pivot shaft within the bowl, the card assembly consisting of a compass card and a magnet, and at least one active indicator pin adapted for alignment with the lubber line of a supporting vehicle and with an adjacent degree indicia line upon the compass card. The active indicator pin is mounted to pivot apart from the pivotally mounted compass assembly, whereby the indicator pin remains disposed generally in a common plane with the adjacent degree indicia line during conditions of compass roll. The card assembly may be with or without gimbal mounting.
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Family
International Classification(s)
Cited Art Landscape
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