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.

Date of Patent:
Oct. 25, 2016

Filed:

Jul. 09, 2012
Applicants:

Roger Howitt, Burton-on-Trent, GB;

Jim Grayson, Gurdon, AR (US);

Mark Bolton, Suzhou, CN;

Paul Bosworth, Derbyshire, GB;

Inventors:

Roger Howitt, Burton-on-Trent, GB;

Jim Grayson, Gurdon, AR (US);

Mark Bolton, Suzhou, CN;

Paul Bosworth, Derbyshire, GB;

Assignee:

PYROTEK INC., Spokane, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B 3/18 (2006.01); F27D 3/14 (2006.01); C22B 7/00 (2006.01); F27B 3/04 (2006.01); C22B 21/00 (2006.01); F27D 27/00 (2010.01);
U.S. Cl.
CPC ...
F27B 3/045 (2013.01); C22B 7/003 (2013.01); C22B 21/0092 (2013.01); F27B 3/18 (2013.01); F27D 27/00 (2013.01); Y02P 10/218 (2015.11);
Abstract

In accordance with one aspect of an exemplary embodiment, a furnace including a charge well is provided. The charge well comprises an open top chamber including side and base walls of a heat resistant material. An inlet is provided in a side wall of the chamber for receiving molten metal. A ramp is provided adjacent the side wall and an inner wall forms a central cavity. The ramp is disposed between the inner wall and the side wall. The ramp is generally inclined from an intersection with the base wall to adjacent a top surface of the inner wall. The cavity is in fluid communication with an outlet. A passage in the inner wall provides fluid communication between the inlet and the cavity. The inlet and an outlet each receives a conduit and at least one of the conduits can include an elbow joint.


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