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
Method and apparatus for controlled reoxygenation
Mobile terminal including stellar body watching hookup communications function
Providing a multi-tenant knowledge network
Inverter, NAND gate, and NOR gate
Vehicle motion control device
Digital display
Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation
  Randomly Featured Patents
Method and machine for card color printing
Hydraulic tension stop for vibration dampers
Manipulatable delivery catheter for occlusive devices
Protection apparatus, method of locating a superconductive magnet unit and superconductive magnet unit apparatus
Electrically-heated wearable blanket with auto shut-off switch
Multiple voltage output buck converter with a single inductor
Facilitating performance of submitted tasks by mobile task performers
Hydrogen supplemental system for on-demand hydrogen generation for internal combustion engines
Composite semipermeable membrane
Apparatus and method for transmitting/receiving data in a closed-loop multi-antenna system