Apparatus for injecting glue in joints and hair checks of wood, especially for gluing loose knots in wooden boards
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Apr 1, 1991
filing date -
May 22, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus with a percussion head disposed beneath a percussion rod of a percussion mechanism. The bottom surface of the percussion head includes a shallow, open-bottomed chamber which is defined by an axially compliant sealing ring, and is adapted to be filled with glue or plastics material to be injected into joints, hair checks, and knots of wooden boards.
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