Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Nitrogen-efficient monocot plants
Light emitting device
Multiple partition adjunct instances interfacing multiple logical partitions to a self-virtualizing input/output device
Lighting device and luminaire
Porphyromonas gingivalis polypeptides and nucleotides
Body scrubber
Heat dissipation module and projection apparatus
  Randomly Featured Patents
Carpet cleaner
Alarm assembly for jewelery-type display case
Hydraulic cylinder arrangement
Method and system for providing insurance policies via a distributed computing network
Marine vessel steering wheel with integrated throttle control device
Photo-luminescent pigment application
Flash-type analog to digital conversion circuit for comparing an analog input voltage with a plurality of reference voltages
Energy saving arrangement for bowling apparatus
Spatially varied interfaces for composite materials
Spring adjustment mechanism