CARTRIDGE TYPE COLUMN FOR TREATMENT OF LIQUID STREAMS AND SUBSTRATE ENCLOSURE THEREFOR

• US 3,682,315 A
• Filed: 10/20/1969
• Issued: 08/08/1972
• Est. Priority Date: 10/20/1969
• Status: Expired due to Term

• Current Assignee: Wolfgang Haller
• Original Assignee: Wolfgang Haller
• Inventors: Haller, Wolfgang
• Primary Examiner(s): Friedman, Reuben
• Assistant Examiner(s): Calvetti, Frederick F.
• Application Number:
  US04/867,704
• Time in Patent Office: 1,023 Days
• Field of Search: 210/20,23,235,232,473,474,266,282,446,453,233 128/272,218DA
• US Class Current: 210/233
• CPC Class Codes: B01D 15/22 relating to the construction of the column
• CPC Class Codes: G01N 30/6026 Fluid seals
• CPC Class Codes: G01N 30/6082 transparent to radiation
• CPC Class Codes: G01N 30/6091 Cartridges

Abstract

A cartridge type column which eliminates stopcocks by employing self sealing puncturable septum means for connecting the column to the fluid lines.

Claims

1. Apparatus for treating liquid streams comprising a bed of substrate enclosed in a tubular body, said body terminating at both ends by porous disks, two puncturable, self-sealing elastomeric septums each of which is coaxially and distally spaced from each of said porous disks for sealing the interior of the tubular body from the atmosphere, means for positioning the porous disks, means for positioning the septums and means for spacing the septums, said means for positioning the porous disks and the septums comprising a hollow housing at both ends of said tubular body and having an internal annular shoulder to restrict axial proximal movement of the porous disk, a removable annular body to restrict axial distal movement of the septum, an annular spacer to keep the septum and the porous disk in spaced relation, a resilient O-ring for said spacer, said removable annular body being provided with a proximal recess to accept the septum, said body having a depth slightly less than the normal thickness of the septum, said removable annular body also being provided with an axial cavity sufficiently large to accept at least two hollow needles which may penetrate the septum and distal transverse faces for abutting and sealing relationship with one side of the septum and a proximal face in abutting relationship to the porous disk, the face of said spacer being provided with a shoulder to accept the resilient O-ring for sealing the spacer against the interior of the housing, and means to secure the annular body, septum, spacer disk and porous disk in each end of said housing.

2. Apparatus as defined in claim 1, said substrate being a chromatographic substrate.

3. Apparatus as defined in claim 1, said substrate being an adsorption medium.

4. Apparatus as defined in claim 1, said substrate being capable of reacting with at least one of the components of a liquid stream.

5. Apparatus as defined in claim 1, said substrate being capable of inducing chemical reactions within a liquid stream.

6. Enclosure as defined in claim 1, wherein said removable annular body is held in place by rings with outside threads which engage with inside threads provided in said hollow housing.

7. Enclosure as defined in claim 1, wherein said removable annular body is held in place by a cup-shaped cap having an axial cavity provided with internal threads to engage with external threads of the housings.

8. Enclosure as defined in claim 1, wherein said hollow housing is detachably and sealingly fastened to said tubular body.

9. Enclosure as defined in claim 8, wherein said housing is fastened to said tubular body by means of engaging threads and gasket means.

10. Enclosure as defined in claim 8, wherein said housing is fastened to said tubular body by means of bolted flanges and gasket means.

11. Enclosure as defined in claim 8, wherein said housing includes a first elongated cylindrical element disposed in telescopic relationship to said tubular body, clamping means threadedly connected with said first cylindrical element for axial movement with respect thereto, said first cylindrical element and said clamping means each being provided with a radially projecting opposed complementary surface defining with said first cylindrical element an annular groove having variable width, and a resilient O-ring disposed in said annular groove and being radially expandable for sealing engagement with said tubular body in response to a decrease in the width of said annular groove caused by axial movement of the clamping means.

12. Enclosure as defined in claim 11, wherein one end of the first cylindrical element is provided with an annular outwardly projecting flange defining one opposed surface of said annular groove, and said clamping means includes a second cylindrical element having one end defining the other opposed surface of said annular groove slidably mounted on the exterior of the housing for radially expanding said O-ring.

13. Enclosure as defined in claim 12, wherein said clamping means includes second and third cylindrical elements slidably mounted on the exterior of the housing, one end of the third cylindrical element and the other end of the second cylindrical element defining with said first cylindrical element a second annular groove having variable width, and a second resilient O-ring disposed in said second annular groove for sealing engagement with said tubular body in response to said axial movement of the clamping means.