Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2007-05-15
2007-05-15
Worrell, Danny (Department: 3765)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C112S080300
Reexamination Certificate
active
11315142
ABSTRACT:
This invention concerns the production of so called “hand tufted rugs”, carpets and wall hangings by use a “tufting machine” which employs a single hollow needle through which yarn is fed into a backing fabric, to form tufts of yarn. The machine comprises a yarn cutter, in the tufting head, which is selectively operable to cause the tufts to be cut or loop pile. A computer operated motion control system is operable under the control of a machine readable tufting design pattern comprising a series of vectors and associated control codes, to drive the tufting gun as follows: (a) to operate the mechanism and reciprocate the needle to insert tufts into backing fabric. (b) to operate the movement system and move the needle across a two-dimensional plane while inserting tufts, in accordance with the vectors. (c) to lift and lower the foot, in accordance with respective control codes. And, (d) to selectively operate the yarn cutter, in accordance with respective control codes.
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European Search Report
Mile Joz
Wilson William Brian
Fagin, Esq. Kenneth M.
Wilcom Pty Ltd
Worrell Danny
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