Abstract: A floor cleaner configured to perform both hard and soft floor cleaning operations includes a mobile body, a motorized cleaning head, a cleaning liquid dispenser, a vacuum, a first vacuum extractor tool and a vacuum squeegee connected to the mobile body. The mobile body is configured to travel over a surface. The motorized cleaning head is connected to the mobile body and includes a cleaning tool. The cleaning liquid dispenser is configured to apply a cleaning liquid to the surface or the cleaning tool. The first vacuum extractor tool is configured for vacuum communication with the vacuum through a first vacuum path.

Abstract: A structure and method of removing semi-rigid debris and demisting gas for use primarily in surface maintenance or conditioning machines, Demisting is accomplished by a combination techniques including rapid pressure reduction and removal of semi rigid debris is accomplished by forcing the debris through a path with curvatures to great for the debris to follow.

Abstract: A seal assembly for an outer envelope trochoidal rotary device having a rotor that planetates around a housing is provided. The seal arrangement comprises a series of side seals disposed in side walls in the housing, the side seals being interconnected by button seals disposed in the side walls of the housing between side seals. The side seals and button seals are spring biased outwardly against the rotor. Each side seal includes a pair of identical oppositely disposed seal strips having an elongated body member and a triangular portion. The elongated body member includes a triangularly shaped relieved portion that has a shape corresponding to a side of the triangular portion. The seal strips are interconnected between two button seals so that the triangular portion of a first seal strip abuts a first button seal and the triangular portion of a second seal strip abuts a second button seal. The button seal includes a relieved area.