Construction of sap collecting devices
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United States of America Patent
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-
Oct 15, 1996
Grant Date -
N/A
app pub date -
Nov 21, 1995
filing date -
Nov 21, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure herein describes a device for use in a sap collecting system which is formed of a body of fluid impermeable composition that has a passageway for allowing sap to circulate therethrough; the composition consists of a plastics material and of a plurality of randomly distributed non corrosive hard granules. The granules have a hardness to repress rodent animals to pierce the plastics material and are so distributed in the plastic material that at least one granule will be contacted when the body is gnawed by a rodent animal.
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