# US 4,396,060 A · Pipe manifold for central heating systems

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- Number: US 4,396,060 A
- Document ID: US4396060A
- Status: Granted
- Kind: A
- Application number: 06/282,159
- Filed: 1981-07-10
- Granted: 1983-08-02
- Earliest claimed: 1981-07-10
- Inventors: Artur Schenk
- Web page: https://patentgrep.com/patent/US4396060A

## CPC

- F28F 9/0217: {the partitions being separate elements attached to header boxes}
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)

## Abstract

A welded dual-chamber pipe manifold with inlet pipe connectors and outlet pipe connectors arranged alternatingly in a single row, in alignment with a longitudinal partition wall of the manifold housing, the partition wall having alternating half-cone-shaped bulges and recesses in its proximate edge portion in alignment with the pipe connectors, intermediate portion of the proximate weld joint as well as the entire distal weld joint of the manifold housing being straight-line welds.

## Claims

### Claim 1

A welded dual-chamber pipe manifold comprising:
an elongated manifold housing composed of two housing halves of channel-like shape which are welded together along a proximate weld joint on one side of the housing and a distal weld joint on the opposite sides of the housing;
a generally flat partition wall longitudinally dividing the interior of the manifold housing into an inlet chamber and an outlet chamber, the partition wall extending from the proximate weld joint to the distal weld joint, being attached to both housing halves by said weld joints;
a row of pipe connectors arranged on the outside of the manifold housing in alignment with its proximate weld joints and with the plane of the partition wall, so as to straddle the latter, successive pipe connectors being connectable alternatingly to an inlet pipe and an outlet pipe; and
a succession of alternatingly convex and concave lateral deformations in the form of substantially semicircular bulges and recesses in the proximate edge portion of the partition wall, in axial alignment with the pipe connectors and with matching semicircular cutouts in the associated wall portions of the two housing halves, the pipe connectors being welded to the housing halves at said cutouts and to the partition wall at said bulges and recesses, respectively, so that every even-numbered pipe connector leads to one manifold chamber and every odd-numbered pipe connector leads to the other manifold chamber; and wherein
the depth of the lateral deformations in the proximate edge portion of the partition wall tapers off to zero in the direction away from the pipe connectors.

### Claim 2 (depends on 1)

A pipe manifold as defined in claim 1, wherein
the lateral deformations in the proximate edge portion of the partition wall are in the form of a half-cone in axial alignment with the associated pipe connector.

### Claim 3 (depends on 1, 2)

A pipe manifold as defined in claim 1 or claim 2, wherein
the semicircular deformations in the proximate edge portion of the partition wall have substantially the same edge radius as the adjoining pipe connectors, being joined together by a butt weld;
the associated cutouts in the housing halves adjoin the partition wall deformations, being welded to the latter and to the pipe connectors by the same welds which form said butt welds; and
each said weld which simultaneously joins edges of the pipe connector, of the partition wall, and of the manifold housing walls is part of a single circular weld joint at the extremity of the pipe connector.

### Claim 4 (depends on 3)

A pipe manifold as defined in claim 3, wherein
the partition wall has straight edge portions between its alternatingly bulging and recessed semicircular edge portions;
the housing halves and the partition wall are joined by a continuous straight-line weld joint at the distal edge of the partition wall and by an intermittent straight-line weld joint at said straight portions of the proximate edge of the partition wall; and
the pipe connectors, the housing halves, and the semicircular proximate edge portions of the partition wall are joined by as many of said circular welds.