Yarn control and feeding apparatus
First Claim
Patent Images
1. Tufting apparatus including bit-applying means for applying tufts to a backing layer at a tufting station comprising:
- a metering means utilizing a controlled yarn feed means for advancing a yarn strand;
means including pulsed control means for controlling the yarn feed means to feed a predetermined length of the yarn strand; and
pneumatic yarn transporting means to advance the yarn strand to the tufting station.
2 Assignments
0 Petitions
Accused Products
Abstract
A yarn control and feeding apparatus for use with tufting machines and similar apparatus wherein yarn, normally precut, is tufted into a backing layer. A pulsing-type solenoid actuator is utilized to selectively control yarn metering and feeding functions carried out by a rotatable yarn feed wheel and to further control pneumatic yarn transport means including advancing and retracting yarn during various stages of the tufting cycle.
18 Citations
24 Claims
-
1. Tufting apparatus including bit-applying means for applying tufts to a backing layer at a tufting station comprising:
-
a metering means utilizing a controlled yarn feed means for advancing a yarn strand; means including pulsed control means for controlling the yarn feed means to feed a predetermined length of the yarn strand; and pneumatic yarn transporting means to advance the yarn strand to the tufting station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. Tufting apparatus including bit-applying means for applying tufts to a backing layer comprising:
-
a metering means utilizing a controlled rotatable yarn feed means for advancing a yarn strand; means for controlling the rotatable yarn feed means to feed a predetermined length of the yarn strand; and pneumatic yarn transport means including valvable feed means and valvable pullback means. - View Dependent Claims (16)
-
-
17. A tufting machine comprising:
-
a yarn source; a yarn metering and feeding means; a yarn pullback means which enables yarn previously fed to be returned to a standby position, said pullback means being pneumatically actuated; a pneumatic yarn transport means; control means for actuating said yarn metering and feeding means, said yarn pullback means, and said pneumatic transport means; yarn severing means; and tufting elements to tuft said severed yarn. - View Dependent Claims (18, 19)
-
-
20. A tufting machine comprising:
-
a yarn source; a yarn metering and feeding means; a yarn pullback means which enables yarn previously fed to be returned to a standby position; a pneumatic yarn transport means; pulsed control means for actuating said yarn metering and feeding means, said yarn pullback means, and said pneumatic transport means; yarn severing means; and tufting elements to tuft said severed yarn. - View Dependent Claims (21, 22, 23, 24)
-
Specification