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:
Jun. 08, 1982
Filed:
Feb. 23, 1981
William R Rinker, Cuyahoga Falls, OH (US);
Harry R Ayers, Cuyahoga Falls, OH (US);
John W Miller, Cuyahoga Falls, OH (US);
The B. F. Goodrich Company, Akron, OH (US);
Abstract
The present invention provides apparatus and a process for manufacturing a bio-oxidation and nitrification module useful in treating sewage and industrial wastewater. Paired thermoplastic flat sheet and corrugated sheet are nested in a cradle and advanced beneath a bank of ultrasonic welders to produce a sonic weld along those interfacial zones of the sheets which are in contact. Welded units of flat and corrugated sheets are stacked to a height equal to the height of the module and the edges of opposite sides of the stack are softened by heated platens to form an edge-seam which bonds the welded units together to form the finished module.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile