Resources Contact Us Home
Device for blocking a liquid flow through a pipe in one direction

Image Number 4 for United States Patent #5709242.

A device for blocking a liquid flow through a pipe in one direction, said device being provided with a substantially spherical valve body, which can closingly cooperate with a substantially annular valve seat, which is positioned substantially transversely to the liquid flow. A guide element in provided for guiding said valve body in a path between a position in which said valve body is positioned near or against said valve seat (closed position) and a position in which the valve body is spaced from the valve seat by some distance (open position). In its open position said valve body can be positioned almost entirely outside the liquid flow. At least one outwardly extending projection is provided for effecting a reduction of the liquid pressure within the valve casing, at the side of the valve body remote from the valve seat.

  Recently Added Patents
Optical modulation element
Electronic component, a semiconductor wafer and a method for producing an electronic component
Proximity search methods using tiles to represent geographical zones
Method and system for generating and displaying an interactive dynamic graph view of multiply connected objects
Capacitance sensing
  Randomly Featured Patents
Ophthalmic drop dispensing tip assembly
Drying process for preparing crystalline solid famciclovir
Video aid system for automatic display of electronic manufacturing drawings
Photomultiplier tube comprising a second dynode having a saturated secondary electron emission ratio
Meatball cooking device
Extruded snack resembling corn on the cob
Brush with handle
Protective device, such as safety work goggles, bow-type ear protector, or the like
Conference control method, and relevant apparatus and system
Switchover device