Touch pad indicating arrival during swimming contests
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United States of America Patent
Stats
-
Oct 9, 1984
Issued Date -
N/A
app pub date -
Jul 3, 1980
filing date -
Feb 28, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A not-watertight touch pad for swimming competitions mounted partially submersed on the finishing wall of a swimming pool. It includes two plates located in front of each other, the front one of which is somehow perforated and loosely inserted in a frame consisting of channel sections on the four sides and movable towards the insulated back plate. Resting between the two plates, many turns of parallel conductive strips are bonded onto the back plate, whereas some hundreds of conductive springs shaped as seagull wings are welded onto the central strips. These springs are mounted perpendicularly to the strips and are acting as spacers between the two plates and as electrical contacts between the strips as soon as any pressure is applied on the front plate.
First Claim
Family
International Classification(s)
Cited Art Landscape
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