Separator with throw-away container

• US 4,097,381 A
• Filed: 02/25/1977
• Issued: 06/27/1978
• Est. Priority Date: 02/27/1976
• Status: Expired due to Term

• Current Assignee: Ab Filtrator
• Original Assignee: Ab Filtrator
• Inventors: Ritzler, Bo
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Application Number:
  US05/772,105
• Time in Patent Office: 487 Days
• Field of Search: 210/512 R, 210/513, 210/259, 210/84, 55/395, 55/421, 55/429, 55/459 R, 209/144, 209/211
• US Class Current: 210/259
• CPC Class Codes: A61C 17/065 characterised by provisions for processing the collected matter, e.g. for separating solids or air
• CPC Class Codes: B01D 2221/10 Separation devices for use in medical, pharmaceutical or laboratory applications, e.g. separating amalgam from dental treatment residues
• CPC Class Codes: B01D 45/12 by centrifugal forces centrifuges B04B; cyclones B04C

Abstract

An apparatus for separating solid particles from a liquid carrying the solid particles. The liquid carrying the solid particles enters a cylindrical chamber having an upper portion with an air evacuation opening. The liquid flows down the sides of the chamber onto a funnel-shaped member. An exchangeable collecting vessel is positioned below the funnel-shaped member and retains and collects solid particles which precipitate out from the liquid. The liquid flows through an opening to a drainage container. The exchangeable collecting vessel has a self-closing resilient membrane covering its opening. The resilient membrane is pierced by a wedge-shaped projection at the drain opening when the collecting vessel is in position. When the collecting vessel is removed, the opening is closed by the resilient membrane to form a hygienic seal.

Claims

1. A device for separating solid particles from a fluid carrying the particles comprising a substantially cylindrical separation chamber having an upper portion including a feed opening for receiving the fluid carrying the particles, an air evacuation opening for providing a vacuum to said separation chamber, and a lower portion having a drainage opening through which the fluid may be drained;

a funnel-shaped member secured to the separation chamber disposed between the feed opening and the drainage opening;

an exchangeable collecting vessel for collecting and retaining the particles, said collecting vessel having an inlet opening located below the funnel-shaped member and an outlet having a self-closing resilient membrane thereacross; and

means for piercing said resilient membrane and for sealably engaging it with the drainage opening.

2. The device of claim 1 wherein said means for piercing said resilient membrane and for sealably engaging it with the drainage opening includes a bushing having a pointed wedge-shaped projection, which bushing and resilient membrane form a seal between the outlet and the drainage opening.

3. The device of claim 1 further including a drainage container having a lower portion which is connected through a check valve to a drainage main and an upper portion connected through a pressure balancing duct to the separation chamber below the funnel-shaped member.

4. The device of claim 1, wherein the feed opening of the chamber is connected to a feed pipe supplying the fluid with solid particles tangentially along an inner wall of the chamber where the fluid is guided downwardly by a helical guide bar attached on the chamber.