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
Capacity and coverage self-optimization method and device in a mobile network
Polyfunctional sulfur-containing epoxies and compositions thereof
System and method for displaying relationships between electronically stored information to provide classification suggestions via inclusion
Systems and methods for sensing external magnetic fields in implantable medical devices
Adaptive switch mode LED system
Anti-reductive high-frequency ceramic dielectric material sintered at low temperature and matched with copper internal electrode
  Randomly Featured Patents
Sandal upper
Single, multiple and integrated car seat systems
Feedback in group based hierarchical temporal memory system
Size optimized pixel line to pixel block conversion algorithm
Socket with bolt
Liquid-gas contact apparatus and method for making the same
Cathode-ray tube, cathode-ray tube apparatus, image display apparatus, and coil unit
Sliding trim marking device and method of using same
Contextual gravitation of datasets and data services
Vitreous fertilizer compositions