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. 18, 1988
Filed:
Feb. 13, 1987
Etsuzo Nomura, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
Before sewing, a cloth pattern sensing means generates waveform signal corresponding to the overall width of two overlapping patterns corresponding to each other in two cloth pieces. The position difference between the patterns is calculated on the basis of the waveform signal. At least one of the feed pitches of the two cloth pieces is changed on the basis of data on the calculated amount of difference and data on the sensed cloth feed pitch. Data on the position difference amount between any patterns and the position difference amount between the next patterns are compared to calculate the direction in which the position difference amount increases or decreases, namely, the direction of the difference. Adjustment is made in the direction in which the amount of difference decreases on the basis of the result of calculation of the direction.