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:
Aug. 03, 2021

Filed:

Sep. 05, 2017
Applicant:

Regents of the University of Minnesota, Minneapolis, MN (US);

Inventors:

Sandra L. Myers, Minneapolis, MN (US);

David R. Bowles, Minneapolis, MN (US);

James Joseph Marti, St. Paul, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/28 (2006.01); B01D 53/64 (2006.01); B01D 53/82 (2006.01); C04B 14/00 (2006.01); B01D 53/04 (2006.01); F23G 1/00 (2006.01); C10G 70/00 (2006.01); A61G 99/00 (2006.01); B01J 20/02 (2006.01);
U.S. Cl.
CPC ...
B01J 20/2805 (2013.01); A61G 99/00 (2013.01); B01D 53/0407 (2013.01); B01D 53/64 (2013.01); B01D 53/82 (2013.01); B01J 20/02 (2013.01); B01J 20/28028 (2013.01); C04B 14/00 (2013.01); C10G 70/00 (2013.01); F23G 1/00 (2013.01); B01D 2253/106 (2013.01); B01D 2253/108 (2013.01); B01D 2253/11 (2013.01); B01D 2253/112 (2013.01); B01D 2257/602 (2013.01);
Abstract

Systems and methods for body-proximate recoverable capture of mercury vapor emitted during cremation of human remains having dental amalgam fillings containing mercury. In various embodiments, one or more recoverable mercury sorbent packets comprise a combination of nanoparticles of one or more chalcogens and a particulate refractory material contained in a refractory material packaging. The recoverable packets capture and contain elemental mercury vapor emitted during cremation from dental amalgam fillings containing mercury. The recoverable packets are placed external to the body and within the combustion chamber during cremation, and not within the flue or exhausts exiting the combustion chambers. In various embodiments, the recoverable packets are positioned within the casket or primary combustion chamber, and may be preferably positioned proximate the head and neck of the body with the aid of selectively-refractory containment structures. After cremation, the mercury laden recoverable sorbent packets may be removed from the ashen remains of the body, and optionally the mercury may be recovered and the sorbent packet reprocessed for reuse.


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