The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2019
Filed:
Jan. 11, 2018
Applicant:
Zeng Hsing Industrial Co., Ltd., Taichung, TW;
Inventor:
Chia-Hui Yu, Taichung, TW;
Assignee:
ZENG HSING INDUSTRIAL CO., LTD., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05B 3/06 (2006.01); D05B 3/02 (2006.01); D05B 19/00 (2006.01); D05B 19/14 (2006.01); A41F 1/02 (2006.01);
U.S. Cl.
CPC ...
D05B 3/06 (2013.01); D05B 3/02 (2013.01); D05B 19/00 (2013.01); D05B 19/14 (2013.01); A41F 1/02 (2013.01); D05D 2303/40 (2013.01);
Abstract
A buttonhole sewing guiding device of a sewing machine includes a buttonhole presser foot unit disposed on a presser foot holder of the sewing machine, and a sensing unit disposed on the buttonhole presser foot unit. A presser frame of the foot unit is movable relative to a sliding member between first and second sewing positions set in accordance with an operating distance that corresponds to a size of a button to allow first and second triggering members to initiate a sensing module for controlling operation of a sewing needle.