Clamping element

Details Clamping element Clamping element

1985-03-15

1987-05-26

Arola, Dave W.

Pipe joints or couplings

Packed

Wedge

285368, 285423, F16L 1908

Patent

active

046679880

ABSTRACT:
Disclosed is a clamping element, in the form of an annular disk, for a pipe coupling between the ends of two butt-joined pipes. Each pipe carries a flange or the like loosely slipped onto its respective end. The flanges may be braced against one another, and each flange is provided with a clamp chamber into which a clamping element placed onto each of the pipe ends fits. The clamping element is held on the end of the pipe by means of an inner, radial clamping edge. A clamping surface of the clamp chamber overlaps the clamping element with respect to an outward, radial clamping edge. The clamping element has such a configuration in the axial direction that an axial compression force applied to the element results in an increase in its external diameter and a decrease in its internal diameter. This results in a seal which surrounds the impact point of the joint. In order to allow the pipe coupling to have a broader field of application, the annular part of the clamping element has an arc-like profile in cross-section. Furthermore, a variety of slots may be arranged in the annular part.

REFERENCES:
patent: 582022 (1897-05-01), Nixon
patent: 2202492 (1940-05-01), Jacocks
patent: 2444380 (1948-06-01), Shimek
patent: 3204988 (1965-09-01), Ouderkirk et al.
patent: 3874709 (1975-04-01), MacDonald
patent: 4084843 (1978-04-01), Gassert
Shatz, "Festklemmen der Gewindeverbindungen", Moskau, Verlag Oborongiz, 1984, p. 104, FIG. 97/3 & p. 109, FIG. 102.
Orlov, "Osnovy Konstruirovania", Moskau, Verlag Mashinostroenie, vol. 2, p. 565, FIG. 533b/5.
P. I. Orlov, "Osnovy Konstruirovania", vol. 2, p. 566, FIG. 534, 1977.
U.S.S.R. Inventor Certificate No. 188,224, (11/24/66).

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