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:
Feb. 17, 1981
Filed:
Jul. 14, 1978
Nobuyoshi Miyao, Sakurai, JP;
Hirotoshi Matsui, Nara, JP;
Nobukazu Isoyama, Sakurai, JP;
Susumu Nonaka, Yamatokoriyama, JP;
Masayasu Makino, Gose, JP;
Kazuo Suzuki, Higashiosaka, JP;
Hirokazu Koda, Dose, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In an automatic electronic sewing machine including a read only memory (ROM) and a random access memory (RAM), the read only memory (ROM) stores pattern data for performing buttonhole stitch operation in the forward direction and pattern data for performing buttonhole stitch operation in the backward direction. A first control switch functions to conduct the buttonhole stitch operation in the forward direction by a desired length selected by the operator. A storage means is provided for storing the length information of the buttonhole stitch formation in the forward direction, or the repetition number of a unit pattern in the forward direction. A second control switch functions to conduct the buttonhole stitch operation in the backward direction by the length stored in the storage means.