Resources Contact Us Home
Vacuum unit and a vacuum toilet system comprising such a unit

Image Number 2 for United States Patent #5754987.

A vacuum unit, intended particularly for a vacuum toilet system, includes two valves (4, 6) which can be connected to a compressed-air source, an ejector (10) which includes an inlet nozzle (10a), an outlet nozzle (10b) and a vacuum opening (10c). The ejector is connected to the first valve (4) via the inlet nozzle, and to a first vacuum-unit connection (U1), via the vacuum opening. A piston valve (16) includes a first inlet (16a), a second inlet (16b) and an outlet (16c). The first inlet connects the piston valve with the ejector outlet nozzle (10), the second inlet connects the piston valve with the second valve (6), and the outlet connects the piston valve with a second vacuum-unit connection (U2). A check valve (17) is mounted between the piston valve outlet (16c) and the second vacuum-unit connection (U2). A passageway connects the second valve (6) and the second inlet (16b) of the piston valve with a further ejector inlet (10d). The further ejector inlet (10d) is directed generally at right angles to the ejector inlet nozzle (10a) and the rejector outlet nozzle (10b). The valves (4, 6) can be connected to one and the same source of compressed air via a common inlet.

  Recently Added Patents
Stable pharmaceutical composition and methods of using same
Landscape post for solar and other light fixtures
White light emitting diode (LED) lighting device
Message transfer apparatus, output method, and computer program product
Distylium plant named `PIIDIST-I`
Apparatus and method for multiplying frequency of a clock signal
Method for generating optical codes for a print-context
  Randomly Featured Patents
Adjustable anti-tip wheels for power wheelchair
Mass production method of semiconductor integrated circuit device and manufacturing method of electronic device
Ceiling loudspeaker system
Medical device having a glass coating and method therefor
Helmet for hockey goalie or the like
Tape applicator
Automated monitoring for clinching joints
Mold and molding manufacturing method
Ejected roller shaft disconnect mechanism
Method of producing acicular magnetic alloy particles