Pneumatic sewing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 12, 1995
Grant Date -
N/A
app pub date -
Apr 25, 1994
filing date -
Apr 25, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pneumatic sewing machine having a housing mounting a presser foot and needle bar for reciprocatory movement and a bobbin for rotary movement, a rocker arm pivotably mounted on the housing having one end attached to the needle bar and the other attached to a pneumatically actuated piston, a rack and pinion operatively connected to the rocker arm for rotating the bobbin, and valve means for controlling delivery of pressurized air from a source to the piston to bring the needle bar proximate the bobbin to perform a stitching operation.
First Claim
Family
International Classification(s)
Cited Art Landscape
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