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:
Sep. 06, 2016
Filed:
Jul. 16, 2012
Peter M. Willis, Benton Harbor, MI (US);
Peter M. Willis, Benton Harbor, MI (US);
Leco Corporation, St. Joseph, MI (US);
Abstract
An analyzer with a combustion furnace includes a flow path of byproducts of combustion coupled to a bidirectional ballast chamber by valves which are sequentially actuated for alternately filling and exhausting byproducts of combustion from opposite sides of the chamber during combustion. Alternately, a plurality of low volume ballast chambers are employed. A method of determining the concentration of elements in a sample includes the steps of combusting a sample; and alternately collecting and exhausting the byproduct gases of combustion in opposite sides of a bidirectional ballast. The bidirectional ballast chamber has an outer wall defining a chamber with sealed enclosures at opposite ends of the wall, a movable piston positioned within the chamber, and gas ports associated with the chamber on opposite sides of the piston.