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

• Current Assignee: Samuel Francis Sims
• Original Assignee: Samuel Francis Sims
• Inventors: Sims, Samuel Francis
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Kocovsky, Thomas E.
• Application Number:
  US05/050,834
• Time in Patent Office: 687 Days
• Field of Search: 222/131,214,335,386.5,389
• US Class Current: 222/386.5
• CPC Class Codes: F04B 43/10 Pumps having fluid drive

Abstract

A device for forcing a substance to be displaced from a containing enclosure using the forces generated by a fluid under pressure. The fluid under pressure enters an enclosure, a portion of whose surface is formed by a flexible membrane. The flexible membrane forms a common surface between the enclosure in which the fluid under pressure is held and the containing enclosure in which the substance to be displaced is held so that forces generated on the membrane by the fluid under pressure are applied to the substance to be displaced. As the fluid under pressure flows into the enclosure the membrane deflects and forces the substance to be displaced from the containing enclosure. An embodiment of this invention is disclosed in which the flexible membrane expands within the interior of a rigid container thus forcing the substance within the container to be displaced. Another embodiment of this invention is disclosed in which the fluid under pressure enters a rigid container and causes the flexible membrane within the container to collapse thus forcing the substance to be displaced out of the containing enclosure a portion of whose surface is formed by the flexible membrane.

Claims

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.

2. A device for displacing a substance in response to forces generated by a fluid under pressure as recited in claim 1 wherein the cover, comprises:

a plate having a portion which extends beyond the side of the container, said plate having a hole in the portion which extends beyond the side of the container.

3. A device for displacing a substance in response to forces generated by a fluid under pressure, as recited in claim 2 wherein the means for forcibly holding the cover against the top of the container, comprises:

a base plate upon which the bottom surface of the container rests, a dowel connected at one end to the base plate and having a portion near its other end threaded, said threaded end extending through the hole in the portion of the cover which projects beyond the side of the container, and a wing nut threadably attached to the threaded end of the dowel and exerting a holding force against the top surface of the cover.