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, 1983
Filed:
Aug. 25, 1982
Kenneth D Adams, Madison, NJ (US);
Marvin Kurland, East Brunswick, NJ (US);
Richard Mead, Whippany, NJ (US);
Ferdinand P Oliva, Cranford, NJ (US);
Terry L Wilson, Denville, NJ (US);
The Singer Company, Stamford, CT (US);
Abstract
A buttonhole presser device includes electrical switch contact members which cooperate with adjustable contact closing members to close an electrical circuit path. The switch contact members are carried by the shank of the presser device and are arranged so that when the presser device is installed on the presser bar one of the switch contact members is in electrical contact with the presser bar and the other switch contact member is in electrical contact with a conductor. The presser bar and the conductor are electrically connected to an electrical control circuit within the sewing machine.