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. 20, 2002
Filed:
Jul. 02, 2001
Mark A. Pondelick, Roscoe, IL (US);
Michael B. Hancock, Rockford, IL (US);
Evac International Oy, Helinski, FI;
Abstract
A vacuum toilet for use with a waste pipe maintained under partial vacuum pressure. The vacuum toilet comprises a bowl having an upper surface defining an opening and a lid supported for pivotable movement between a lowered position, in which the lid covers the opening, and a raised position, in which the lid is rotated away from the opening. An actuator has a rod connected to the lid, the rod being movable between a first position, in which the lid is placed in the raised position, and a second position, in which the lid is placed in the lowered position. A controller is operatively connected to the actuator, wherein the controller normally operates the actuator with the rod in the first position. The controller automatically operates the actuator rod to the second position during a toilet flush cycle, and subsequently returns the actuator rod back to the first position after the toilet flush cycle.