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:
Aug. 17, 2004
Filed:
Apr. 23, 2003
Steven Charles Brooker, Hartville, OH (US);
Robert William Hyde, Green, OH (US);
Martin I. Lei, Canton, OH (US);
Goodrich Corporation, Charlotte, NC (US);
Abstract
An aircraft drain device ( ) for interposition between a potable water line (e.g., the drain line from an ice drawer) and a gray water line leading to a drainmast or other external drain. The drain device ( ) includes a housing ( ), an inlet ( ) adapted for connection to the potable water line, an outlet ( ) adapted for connection to the gray water line, and a piston ( ). The preferably floatable piston ( ) is movable between a normal operation position, whereat potable water can flow to the drainmast, and a back-up operation position, whereat the potable water is protected from contact with the gray water. The drain device ( ) can be constructed to prevent spillage (or leakage) during back-up operation.