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:
Feb. 07, 2012
Filed:
Jul. 06, 2009
Jerry R. Collette, Carrollton, OH (US);
Warren E. Kelm, Malvern, OH (US);
Jerry R. Collette, Carrollton, OH (US);
Warren E. Kelm, Malvern, OH (US);
Other;
Abstract
A rotating drum in an oven is sealed against hot gas and air transfer. An annular outer seal holder has an L shaped cross section. A first end of the holder is connected to the oven. A second end is a radial flange. A backing plate has first and second sections. The first section has an inward extending guide. The second section has an inner diameter larger than an inner diameter of the guide portion. Bolts hold the backing plate and the seal retainer segments assembled on the flange. A cylindrical space between the radially guide portion of the backing plate and the seal retainer segments receives radially outwardly extending holder plates of segmental inner sealing elements. Partially cylindrical plates welded to the holder plates engage a drum wear plate. Leaf springs are connected to the seal retainer segments. Inner edges pressing the cylindrical plates radially inward.