Inspection chamber and method for producing an inspection chamber with base segments

Abstract

An inspection chamber has a plastic sleeve as well as a plastic base attached to the sleeve and provided with at least two openings to which a pipe can in each case be attached, which plastic base has a flow profile which extends between the openings, and is made up of at least two separate base parts which, at the edges thereof facing towards each other, are fixedly attached to one another by means of a joining technique, such as gluing, welding and/or pop rivets. The flow profile has a rotational symmetry about a central axis which is oriented in the longitudinal direction of the sleeve.

1 - 19 . (canceled) 
   
   
       20 . An inspection chamber, comprising a plastic sleeve as well as a plastic base attached to the sleeve and provided with at least two openings to which a pipe can in each case be attached, which plastic base has a flow profile which extends between the openings, and is made up of at least two separate base parts which, at the edges thereof facing towards each other, are fixedly attached to one another by means of a joining technique, such as gluing, welding and/or pop rivets, and wherein the flow profile has a rotational symmetry about a central axis which is oriented in the longitudinal direction of the sleeve. 
   
   
       21 . The inspection chamber according to  claim 20 , in which the flow profile is hollow on that side of the base which contains the openings. 
   
   
       22 . The inspection chamber according to  claim 20 , in which the flow profile, viewed in a cross-sectional plane through the central axis, along the periphery thereof, is oriented substantially in the longitudinal direction of the sleeve. 
   
   
       23 . The inspection chamber according to  claim 20 , in which the flow profile, viewed in cross-sectional plane through the center axis, near the central axis, runs substantially at right angles to the longitudinal direction of the sleeve. 
   
   
       24 . The inspection chamber according to  claim 20 , in which the base comprises central base parts as well as base parts which form a ring, which ring-forming base parts adjoin the outer periphery of the central base parts, to the outer periphery of which ring-forming base parts the sleeve is attached, and which ring-forming base parts are profiled in such a manner that their flow profile forms a continuation of the flow profile of the central base parts. 
   
   
       25 . The inspection chamber according to  claim 20 , in which a shaft is provided which is attached to the sleeve. 
   
   
       26 . The inspection chamber according to  claim 25 , in which the shaft is double-walled with a smooth inner tube and a ribbed outer tube attached to the inner tube. 
   
   
       27 . The inspection chamber according to  claim 20 , in which the base comprises an end partition or end ring on which the assembled base parts are supported. 
   
   
       28 . The inspection chamber according to  claim 20 , in which openings are provided with connections. 
   
   
       29 . The inspection chamber according to  claim 20 , in which the base is provided with strengthening ribs at the side facing away from the flow profile. 
   
   
       30 . The inspection chamber according to  claim 29 , in which the strengthening ribs are mutually arranged at pre-defined angles. 
   
   
       31 . A method for producing an inspection chamber, having a plastic sleeve as well as a plastic base attached to the sleeve and provided with at least two openings to which a pipe can in each case be attached, which plastic base has a flow profile which extends between the openings, and is made up of at least two separate base parts which, at the edges thereof facing towards each other, are fixedly attached to one another by means of a joining technique, such as gluing, welding and/or pop rivets, and in which the flow profile has a rotational symmetry about a central axis which is oriented in the longitudinal direction of the sleeve, wherein the method comprises the steps of:
 providing at least two base parts, which base parts together can form a complete base,   arranging the base parts next to one another in the peripheral direction,   attaching the base parts to one another.   
   
   
       32 . The method according to  claim 31 , comprising the steps of:
 dividing at least one of the base parts into base part portions along a radial section,   arranging the base part portions differently,   connecting the base part portions and other base parts together according to the different arrangement.   
   
   
       33 . The method according to  claim 32 , comprising the step of:
 exchanging base part portions when arranging them differently in the peripheral direction.   
   
   
       34 . The method according to  claim 32 , comprising the step of:
 placing at least one base part portion between two other base parts.   
   
   
       35 . The method according to  claim 32 , comprising the steps of:
 exchanging base part portions in the peripheral direction,   placing at least one base part portion between two other base parts.   
   
   
       36 . A method for producing base parts for a plastic base provided with at least two openings to which a pipe can in each case be attached, which plastic base has a flow profile which extends between the openings, and in which the flow profile has a rotational symmetry about a central axis, wherein the method comprises the steps of;
 producing at least two base parts which are mutually joined by connection members at the circumference of the base and/or at the side of the base facing away from the flow profile,   removing the connection members.   
   
   
       37 . A set for an inspection chamber having a plastic sleeve as well as a plastic base attached to the sleeve and provided with at least two openings to which a pipe can in each case be attached, which plastic base has a flow profile which extends between the openings, and is made up of at least two separate base parts which, at the edges thereof facing towards each other, are fixedly attached to one another by means of a joining technique, such as gluing, welding and/or pop rivets, and wherein the flow profile has a rotational symmetry about a central axis which is oriented in the longitudinal direction of the sleeve, in which the set comprises at least two different base parts, one base part of which being provided with an opening. 
   
   
       38 . The set according to  claim 37 , in which the base parts are mutually joined by connection members.