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DEVICE FOR DISPLACING A SUBSTANCE IN RESPONSE TO FORCES GENERATED BY A FLUID UNDER PRESSURE

  • US 3,662,929 A
  • Filed: 06/29/1970
  • Issued: 05/16/1972
  • Est. Priority Date: 06/29/1970
  • Status: Expired due to Term
First Claim
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1. A device for displacing a substance in response to forces generated by a fluid under pressure, comprising:

  • a conduit having a first end with an opening and a second end with an opening, means attached to the first end of the conduit for connecting the conduit to a source of fluid under pressure, an expandable container having an opening, the opening of said expandable container being connected to the second end of the conduit so that the fluid under pressure may pass through the conduit and enter the interior of the expandable container causing the container to expand, a container having a top, a side, and a substantially flat bottom surface, said container also having an opening in its top, a cover having a top surface and a bottom surface, said cover having a shape which at least covers the opening in the top of the container, said cover also having a first hole and a second hole, the holes being located centrally on the cover, the second hole having the conduit inserted within it, the periphery of the second hole being attached to the exterior of the conduit so that a leakproof seal is formed between the exterior of the conduit and the periphery of the second hole, and so that the first end of the conduit extends above the top surface of the cover and the second end of the conduit extends below the bottom surface of the cover when the top surface of the cover is disposed upwardly, a hose connection fitting having a longitudinal bore, said hose connection fitting being connected to the periphery of the first hole in the cover and extending above the top surface of the cover, said fitting providing a passageway for the substance to be displaced, an exhaust hose having a first end and a second end, the first end of said exhaust hose being attached to the hose connection fitting so that the substance to be displaced exiting from the hose fitting will pass into the interior of the exhaust hose, a valve connected to the second end of the exhaust hose to control the flow of the substance to be displaced, sad valve forming the first opening of the second enclosure, a perforated conduit which is supported in an upright position by the bottom surface and the side of the container so that the substance to be displaced may pass from the bottom of the container to the top of the container after the expandable container has expanded to such an extent that there are no longer any openings between the expandable container and the side of the container through which the substance to be displaced could reach the top of the container, a gasket which fits between the bottom surface of the cover and the periphery of the opening in the top of the container, said gasket having an outline which conforms generally to the periphery of the opening in the top of the container so that a seal is formed around the periphery of the opening in the top of the container when the cover is held forcibly against the top of the container, a flexible flap attached to a portion of the gasket adjacent the first hole in the cover, said flap extending to a point so that the flap covers the first hole when a portion of the expandable container comes into contact with the flap thus preventing the fluid under pressure from forcing the expandable member into the first hole and also establishing pressure within the container which prevents the further entry of fluid under pressure into the expandable container and also prevents the fluid under pressure from leakage from the region where the expandable container is connected to the conduit, and means for forcibly holding the cover against the top of the container so that a substantially equal compressive force is applied To points on the gasket.

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