Flame spray gun with wire feed control
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United States of America Patent
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-
Oct 26, 1993
Issued Date -
N/A
app pub date -
Jan 25, 1993
filing date -
Jul 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wire flame spray apparatus includes a wire feed pulley driven by a motor. A first counterpulley urges a wire into engagement with the feed pulley. A detector pulley with a second counterpulley engages the wire to detect actual wire feed rate. A balance beam supports the counterpulleys. A pressure cylinder acts on the beam to increase counterpulley force on the wire in response to a lagging of actual feed rate from a predetermined feed rate so as to avert slippage of the wire on the feed pulley. A sensor senses changes in rotational speed of the detector pulley and generates signals to increase the counterpulley force. A microprocessor provides control signals for the motor and pressure cylinder.
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