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:
Jul. 20, 2004
Filed:
Feb. 14, 2003
John W. Pfeiffer, Hughesville, PA (US);
The Young Industries, Inc., Muncy, PA (US);
Abstract
In a system for pneumatically conveying a bulk particulate material including a first conduit formed of a gas permeable material, a second conduit formed of an impermeable material encompassing and spaced from the first conduit, a plurality of partition walls disposed between said conduits and spaced along the lengths thereof providing a plurality of plenums, means connectable to a first source of gas under pressure for injecting a gas under pressure into said first conduit to impel material deposited therein and second means connectable to a second source of gas under pressure for supplying gas under pressure into said plenums to fluidize material flowing through the first conduit, a system for declogging the second conduit consisting of means connected to a source of gas under pressure operable for selectively supplying the plenums with bursts of gas under pressure for dislodging material deposited in said apertures of the first conduit.