Sewing machine with thread monitor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 28, 1991
Grant Date -
N/A
app pub date -
Apr 9, 1990
filing date -
Oct 21, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The control circuit of a catch thread device has a counter for the main shaft of the swing machine. The counter counts the number of revolutions of the main shaft 26 during the reception of one of at least two signal intensities and is reset to its initial value when this signal intensity changes to the other signal intensity. When a predetermined maximum number of revolutions is reached, the counter emits a signal indicating a thread fault.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully