Resources Contact Us Home
Expanding bellows for expulsion tank

Image Number 4 for United States Patent #4213545.

A positive expulsion tank incorporates an expanding bladder in the form of a metal bellows, which is adapted to undergo elastic deformation during a product storage condition to provide for thermal cycling of a stored product, and plastic deformation, during a product expulsion operation to achieve high efficiency expulsion of product from the tank. Convolution crests of the bellows are internally reinforced by rings, whereby plastic deformation of the bellows is caused to occur primarily in the root areas during the expulsion operation. As a result, the root areas are displaced radially outwardly towards the wall of the tank incident to axially directed extension of the bellows to lie in essential alignment with their adjacent crests when the bellows has been fully extended to complete the expulsion operation, thereby providing for expulsion efficiencies in excess of 97 percent.

  Recently Added Patents
Air-fuel ratio control apparatus for an internal combustion engine
Random access for wireless multiple-access communication systems
Method and system for the geolocation of a radio beacon in a search and rescue system
Vehicle fender
Pattern forming method using printing device and method of manufacturing liquid crystal display device using the same
Method for producing cathode active material for a lithium secondary battery
  Randomly Featured Patents
Easel binder
Process for carrying out gas/liquid reactions under avoidance of a continuous gas phase
Fluid power system
Multi-purpose tool including folding scissors
Secure platform management with power savings capacity
Raster distortion correction circuitry for a video display apparatus that includes a square-planar picture tube
Motor vehicle headlight control apparatus
Electronic endoscope apparatus having an isolation circuit for isolating a patient circuit from a secondary circuit
Method for producing a membrane
Dose level indication