IDiyas

For the Inventor, By the Inventor

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.:

US 9579847 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Jul. 22, 2014

Thermoplastic induction-welding systems

Applicants:

Jerry L. King, Williamstown, WV (US);

Charles Furr, Summerfield, OH (US);

Inventors:

Jerry L. King, Williamstown, WV (US);

Charles Furr, Summerfield, OH (US);

Assignee:

MAGNUM MAGNETICS CORPORATION, Marietta, OH (US);

Attorneys:

Vorys, Sater, Seymour and Pease LLP

William L. Klima

Primary Examiner:

Daniel McNally

Int. Cl.
CPC ...
B29C 65/36 (2006.01); B29C 65/48 (2006.01); B29C 65/50 (2006.01); B29C 65/00 (2006.01); B29D 23/00 (2006.01); B29L 23/00 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01); B29K 105/16 (2006.01);
U.S. Cl.
CPC ...
B29C 65/3612 (2013.01); B29C 65/3696 (2013.01); B29C 65/4815 (2013.01); B29C 65/4875 (2013.01); B29C 65/4885 (2013.01); B29C 65/5057 (2013.01); B29C 66/1122 (2013.01); B29C 66/1222 (2013.01); B29C 66/1224 (2013.01); B29C 66/5221 (2013.01); B29C 66/52292 (2013.01); B29C 66/73921 (2013.01); B29C 65/3668 (2013.01); B29C 66/71 (2013.01); B29D 23/003 (2013.01); B29K 2023/065 (2013.01); B29K 2023/0633 (2013.01); B29K 2105/0005 (2013.01); B29K 2105/16 (2013.01); B29K 2105/258 (2013.01); B29L 2023/22 (2013.01);
Abstract

A flexible ferromagnetic strip is used to induction-weld seams in polymer pipes. The strip is a blend of strontium ferrite, a surfactant, and an LDPE binder. A process to produce the profile is to mix the ingredients together followed by granulation and extrusion or calendering. The strip is used in conjunction with an induction coil sized to fit over a polymer pipe coupling containing the strip and separate segments of polymer pipe. The strip is heated by induction current induced by an electromagnetic field generated by the coil. The heated strip causes the polymer pipe segments to be thermoplastically welded together.

Find Patent Forward Citations

Loading…