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US 4,063,757 AGranted
Fitting for conduits with corrugated tubes and hoses
AssigneeKabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
InventorSiegfried Fuhrmann
Life of this patent
Estimating the term…
Abstract
The fitting has a main part which has two axially spaced corrugations, one for engaging the corrugations of the tube, the other engaging the hose projecting from the tube. A sleeve with outer corrugations engages the hose from the inside. Armoring is clamped separately onto the outside of the main part.
Claims7
A fitting for connection to a conduit having a corrugated outer tube and an inner elastic hose, an end portion of the outer tube having been cut for exposing the hose, comprising:
- a flange part having internal grooves and ridges defining a corrugation pattern for engaging corrugations of the outer tube from the outside, said flange part having additionally an inner threading with smooth corrugation ridges and being axially displaced from said grooves and ridges for engagement of the inner hose where exposed;
- and
- a sleeve having smooth-surface thread ways substantially matching the inner threading of the flange part, but being of smaller diameter for being threadedly inserted in said flange part and said hose for clamping the hose against the inner threading while the hose conforms to the contour of the sleeve threading and of the inner threading of the flange part, in that ridges of either threading urge the hose into opposite grooves of the respective other threading.
Dependencies are inferred from the claim text.