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:
Dec. 29, 1981
Filed:
Jul. 23, 1979
Robert A Caughey, Antrim, NH (US);
Forest Fuels, Inc., Marlborough, NH (US);
Abstract
A spark-arresting module for disposition in a duct for hot stack gases comprising a rigid frame structured with spaced, parallel bars alternating with spaced, parallel slots, a shaft at the upstream side of the frame and parallel thereto, a plurality of blades provided with diametrically-located vanes fixed to the shaft for rotation therewith, said vanes being movable through the slots in shearing relation to the bars by rotation of the shaft and being so shaped that some portion of each blade is at all times situated between the bars and a motor for effecting rotation of the shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile