Sewing – Elements – Thread guiding or handling
Reexamination Certificate
2000-07-17
2001-12-04
Izaguirre, Ismael (Department: 3765)
Sewing
Elements
Thread guiding or handling
C112S240000
Reexamination Certificate
active
06325007
ABSTRACT:
FIELD OF THE INVENTION
The invention resides in the field of sewing machines where the thread tends to become knotted or tangled, and not run smoothly through the needle. Heretofore thread would often become knotted or entangled, either in association with the needle, or by itself. This was particularly true in the case of metallic thread. Metallic thread easily became knotted, as compared with other threads such as cotton, etc. with corresponding difficulties and annoyances so as to prevent the thread from running smoothly.
SUMMARY OF THE INVENTION
A main objective of the invention is to provide a guide to overcome the above objection, which can be easily applied to the sewing machine, and that does not require modification of the sewing machine itself to enable its application thereto.
The guide is so applied to the sewing machine by fitting it on the presser foot, which includes prongs extending generally horizontally, the guide having corresponding prongs fitted on those prongs.
Another object is to provide such a guide that is extremely simple and thereby easily applied to the presser foot of the sewing machine and held thereon mainly by the friction.
Still another object is to provide such a guide, whereby when it is applied to the sewing machine, and the thread is put in place in relation thereto, the thread provides a constant pressure to aid in retaining the guide on the presser foot.
REFERENCES:
patent: 2137454 (1938-11-01), Litsey
patent: 2211333 (1940-08-01), Lang
patent: 3547059 (1970-12-01), Dolney et al.
patent: 5690040 (1997-11-01), Nakayama et al.
Gallagher Paul H.
Izaguirre Ismael
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