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US 8,342,113 B2Granted
Systems and methods for thread handling and/or cutting
OwnerAlberto Landoniinventor
Life of this patent
Estimating the term…
Abstract
One embodiment of the present invention relates to a system for thread handling (e.g., separating) and/or cutting. Another embodiment of the present invention relates to a method for thread handling (e.g., separating) and/or cutting. In one example, the present invention may be used in connection with sewing machines, embroidery machines, quilting machines and the like.
Claims25
A method of cutting thread, comprising:
- rotating through an angle of greater that 360 degrees a rotary hook assembly in a forward direction to make a lock stitch formed by a top thread and a bottom thread, wherein at least one component is attached to or integral with the rotary hook assembly;
- stopping the rotation of the rotary hook assembly;
- and
- rotating the rotary hook assembly in a reverse direction so as to cut at least a portion of at least one of the top thread and the bottom thread, wherein the cut is made by the component having at least one blade.
1 more element
A method of cutting thread, comprising:
- rotating through an angle of greater than 360 degrees a rotary hook assembly to make a lock stitch formed by a top thread and a bottom thread, wherein at least one component is attached to or integral with the rotary hook assembly and wherein the component rotates with the rotary hook assembly;
- separating a first portion of the top thread from a second portion of the top thread using the component;
- and
- cutting at least a portion of at least one of the top thread and the bottom thread with a cutting blade contacted to at least a part of a surface of the component.
1 more element
A method of cutting thread, comprising:
- rotating through an angle of greater than 360 degrees a rotary hook assembly to make a lock stitch formed by a top thread and a bottom thread, wherein at least one component is attached to or integral with the rotary hook assembly and wherein the component rotates with the rotary hook assembly;
- separating a first portion of the top thread from a second portion of the top thread using a cutting blade;
- and
- cutting at least a portion of at least one of the top thread and the bottom thread with the cutting blade contacted against at least part of a surface of the component.
1 more element
An assembly, comprising:
- a rotary hook;
- a component attached to or integral with the rotary hook, wherein the component is capable of rotating with the rotary hook, wherein the rotary hook is capable of assisting in making a lock stitch formed by a top thread and a bottom thread, and wherein the component is capable of separating a first portion of the top thread from a second portion of the top thread;
- and
- a cutting blade capable of cutting at least a portion of at least one of the top thread and the bottom thread when the cutting blade is contacted to at least a part of a surface of the component.
1 more element
An assembly for sewing a lock stitch, comprising:
- a rotary hook capable of rotating through an angle of greater that 360 degrees;
- and
- a component attached to or integral with the rotary hook;
- wherein the component is capable of rotating with the rotary hook;
- wherein the rotary hook is capable of assisting in making a lock stitch formed by a top thread and a bottom thread;
- and
- wherein the component is capable of cutting at least a portion of at least one of the top thread and the bottom thread.
4 more elements
Dependencies are inferred from the claim text.