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:
Jun. 25, 1996
Filed:
Sep. 23, 1994
Thorsten G Hilgenfeldt, Montrose, CA (US);
Allen B Amundson, Upland, CA (US);
Nicholine M Sandoval, Monrovia, CA (US);
Fantu W Leka, La Verne, CA (US);
Robert C Manemann, Huntington Beach, CA (US);
Casey A Campbell, Arcadia, CA (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
An orthodontic assembly that includes a band and an attachment has one or more spot welds to secure the band to the attachment. The spot welds are characterized by the lack of any outer surface weld deformation that is circular in shape, or that is visible to the naked eye when viewed at a distance of twenty-four inches. Apparatus for welding the attachment to the band includes a subframe that is swingable in an arc to follow the inner contour of the band in order to provide automated welding on mesial and distal sides of the attachment.