Pipes and tubular conduits – Flexible – With means for facilitating collapse
Patent
1996-03-18
2000-01-11
Ferensic, Denise L.
Pipes and tubular conduits
Flexible
With means for facilitating collapse
138110, 138177, 604 95, F16L 1114
Patent
active
060124946
ABSTRACT:
In a flexible structure, a number n of notches (12a, 12b) is formed in a preferably circular-cylindrical block of material (1). The parallel and equidistant notches (12a, 12b) begin at two diametrically opposed jacket lines (10.sub.1, 10.sub.2) and are at right angles or an acute angle to the longitudinal axis (10) of the block and are made so deep that for joining together (n+1) segments (22), a continuous, approximately rectangular residual cross-sectional region (32) remains, in the form of a residual web. Symmetrically to the longitudinal axis (10), continuous, closed conduits (52, 52.sub.1, 52.sub.2) are formed in the rectangular residual cross-sectional region (32). Moreover, aligned bores (42.sub.1, 42.sub.2) are located at diametrically opposed points, and in them pressure- and/or tension exerting components can be accommodated for bending the flexible structure.
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German Patent Abstract (DE3390015), May 11, 1983. Author: Nolles et al.
Deutsche Forschungsanstalt fur Luft - und Raumfahrt e.V.
Ferensic Denise L.
Hook James F.
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