Method of potting the ends of a bundle of hollow fibers positioned in a casing

• US 4,329,229 A
• Filed: 10/29/1979
• Issued: 05/11/1982
• Est. Priority Date: 03/20/1978
• Status: Expired due to Term

• Current Assignee: Baxter Travenol Laboratories Incorporated
• Original Assignee: Baxter Travenol Laboratories Incorporated
• Inventors: Schnell, William J., Bodnar, Bert S.
• Primary Examiner(s): Spear, Jr., Frank A.
• Application Number:
  US06/089,016
• Time in Patent Office: 925 Days
• Field of Search: 210/450, 210/23 H, 210/23 F, 210/22, 210/321 R, 210/321 A, 210/321 B, 264/258, 264/221
• US Class Current: 210/321.89
• CPC Class Codes: B01D 2313/22 Cooling or heating elements
• CPC Class Codes: B01D 2319/04 Elements in parallel
• CPC Class Codes: B01D 53/22 by diffusion manufacturing semi-permeable membranes B01D67/00; form, structure or properties of semi-permeable membranes B01D69/00; material for semi-permeable membranes B01D71/00
• CPC Class Codes: B01D 63/022 Encapsulating hollow fibres
• CPC Class Codes: B01D 63/0222 using centrifugal forces
• CPC Class Codes: B29C 39/08 Introducing the material into the mould by centrifugal force
• CPC Class Codes: B29C 70/845 by moulding material on a relative small portion of the preformed parts
• CPC Class Codes: B29L 2031/14 Filters optical filters B29L2011/0066, sieves or screens B29L2031/737

Abstract

An elongated, tubular casing contains a bundle of hollow fibers with closure members at both ends thereof. Each closure member comprises a cup-shaped member connected in sealing relation at its rim to the ends of the tubular casing. Each cup-shaped member also defines an extended cylindrical portion positioned remotely from the rim having an inner diameter less than the relatively enlarged, inner diameter portion, and the tubular casing carries a hollow, elongated member or potting boat during manufacture containing a curable liquid sealant, as a means for inserting the sealant into the ends of the tubular casing by centrifugation.

Claims

1. An elongated tubular casing containing a bundle of hollow fibers, said casing including casing closure member means at both ends thereof, and a pair of side apertures positioned in said casing, each closure member means comprising a cup-shaped member connected in sealing relation at its rim to the ends of said tubular casing, a portion of said cup-shaped member adjacent said rim being of relatively enlarged inner diameter, relative to said tubular casing, each said cup-shaped member also defining an extended cylindrical portion, positioned remotely from said rim, having an inner diameter less than said relatively enlarged inner diameter portion and receiving an end of said hollow fiber bundle, said tubular casing carrying a hollow, elongated member which defines outlet ports connected to the side apertures of said casing, said hollow, elongated member containing a curable liquid sealant.

2. The elongated, tubular casing of claim 1, in which said pair of side apertures are positioned adjacent opposite ends of said casing and generally parallel to each other.

3. The elongated, tubular casing of claim 2, in which each extended cylindrical portion of the rigid closure member means is cut through with a circumferential channel, and said extended, cylindrical portion is filled with cured sealant, surrounding and enveloping the fiber bundle end positioned therein.

4. The elongated, tubular casing and attached hollow, elongated member of claim 3, in which said attached hollow, elongated member comprises a thin-walled plastic hollow shell, said outlet ports being positioned at opposite ends thereof.

5. The elongated tubular casing of claim 1 in which the cup-shaped rigid closure member means define helical threads at their inner rims, and the ends of said tubular casing define helical threads at their outer ends, said cup-shaped closure member means being removably carried by the interlocking of said helical threads on the ends of said closure member in sealing relation thereto.

6. The elongated tubular casing of claim 1 in which each cup-shaped member is integrally sealed at its rim to an end of said tubular casing.