Needle bar drive for a buttonhole sewing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 25, 1998
Grant Date -
N/A
app pub date -
Apr 8, 1996
filing date -
Apr 8, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A counter-weighted eccentric or crank is clamped to an end of the upper drive shaft. A link is pivoted between the eccentric and an end of a short leg on a V-shaped rocker. The base of the V-shaped rocker is pivoted on a fixed pin. The long arm of the V-shaped rocker is connected to a needle bar to drive the needle bar up and down. The movement of the needle bar carries a main needle and thread through a workpiece to make stitches in the cloth.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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