Flange connection for quartz tubes

Details Flange connection for quartz tubes Flange connection for quartz tubes

1982-07-26

1984-12-18

Arola, Dave W.

Pipe joints or couplings

Packed

Flanged pipe

285414, 285415, 285DIG12, F16L 1706

Patent

active

044887434

ABSTRACT:
To connect together tubular elements, such as pipes and the like, made of materials which are difficult to machine and handle, and which are expensive, such as quartz glass, or quartz materials or quartz-ceramic goods used, for example, in laboratory or chemical processing apparatus, the end portions of the tubular elements are formed with a circumferential groove or recess in which a spring ring made of metal, fiber-reinforced plastic, or the like, is snapped, the spring ring (3) being clamped at its external, projecting surface by a conical surface (8) on a flange ring (4) and a similar conical surface (8) on a counter ring, the flange ring and the counter ring being clamped by connecting bolts (6); two such elements can be connected together by passing connecting bolts (10) through aligned openings (7) in the flange rings; preferably, the connecting bolts are spring-loaded (11). The engagement angles of the conical surfaces (8) on the rings are, for example, about 38.degree. each with respect to a plane passing transversely through the axis of the tubular quartz goods.

REFERENCES:
patent: 3414297 (1968-12-01), Pollia
patent: 3966234 (1976-06-01), Sundholm
Prospectus Q-C 1/112, 1974 by Heraeus Quarzschmelze GmbH.

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