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:
Jan. 29, 2008
Filed:
Apr. 06, 2006
Charles R. Sperry, Northampton, MA (US);
Suzanne M. Scott, Springfield, VT (US);
Jason A. Rittenhour, Claremont, NH (US);
Jack Crane, Woodbridge, CT (US);
Charles R. Sperry, Northampton, MA (US);
Suzanne M. Scott, Springfield, VT (US);
Jason A. Rittenhour, Claremont, NH (US);
Jack Crane, Woodbridge, CT (US);
Sealed Air Corporation (US), Saddle Brook, NJ (US);
Abstract
A heating element for a film-sealing apparatus comprises a heating wire segment formed of a first metal having a first reflectance to laser radiation of a predetermined wavelength. The heating element further comprises a first conductor lead comprising a wire having one end joined to a first end of the heating wire segment, and a second conductor lead comprising a wire having one end joined to a second end of the heating wire segment. The first and second conductor leads have a lower electrical resistance than the heating wire segment, and are formed of a second metal having a second reflectance to laser radiation of the predetermined wavelength, the second reflectance being higher than the first reflectance. Each of the first and second conductor leads is lap-welded to the respective end of the heating wire segment using laser radiation of the predetermined wavelength.