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. 22, 2019
Filed:
Apr. 05, 2016
Applicant:
Miller Weldmaster Corporation, Navarre, OH (US);
Inventor:
Brian D. Henry, North Lawrence, OH (US);
Assignee:
Miller Weldmaster Corporation, Navarre, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B 70/00 (2017.01); B29C 65/00 (2006.01); B29C 65/18 (2006.01); B29C 65/56 (2006.01); B29C 65/72 (2006.01); B29C 65/74 (2006.01); B29L 31/00 (2006.01); B31B 160/10 (2017.01); B31B 155/00 (2017.01); B31B 70/64 (2017.01); B31B 150/00 (2017.01);
U.S. Cl.
CPC ...
B29C 66/8511 (2013.01); B29C 65/18 (2013.01); B29C 65/56 (2013.01); B29C 65/72 (2013.01); B29C 65/74 (2013.01); B29C 66/83413 (2013.01); B29C 66/87 (2013.01); B31B 70/00 (2017.08); B29C 66/4312 (2013.01); B29K 2623/12 (2013.01); B29L 2031/7128 (2013.01); B31B 70/642 (2017.08); B31B 70/643 (2017.08); B31B 70/644 (2017.08); B31B 2150/002 (2017.08); B31B 2155/00 (2017.08); B31B 2160/10 (2017.08);
Abstract
A thermal welder is configured to weld a back seam of a bag formed of thermoplastic sheet material. The welder may include a weld heater and a compression mechanism downstream of the weld heater to compress the sheet material to form the back seam. The welder may also include a weld breaker downstream of the compression mechanism to break apart incidental welds which are formed adjacent the back seam.