Device for controlling the pressure of fabric pressure shoes on sewing machines or the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Feb 28, 2002
app pub date -
Jun 18, 2001
filing date -
Jun 23, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An automatic control device that basically employs a pneumatic system that controls the pressure exerted on the shaft of the fabric pressure shoe, pressure that was traditionally exerted by spring systems or in any case mechanical-type systems that were always based on the pressure or the pull of a spring. Basically automatic control device (1), installed above shaft (2) on which fabric pressure shoe (3) is mounted, consists of cylinder (4) in the chamber of which piston (5) slides. The chamber of cylinder (4) is connected at the top to a tube (8) that leads to pneumatic control system (9). This system includes pressure regulator (10) of a type suitable for performing precision control of the pressure in the air circuit.
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Family
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