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US 6,439,617 B1Granted
Coupler for a pipe or hose section
AssigneeWavin B.V.
InventorsHans Boer, Hartmut Breukelman, Johannes Spykman
Life of this patent
Estimating the term…
Abstract
A coupler for a pipe or hose section has a coupling body, at least one coupling piece integrally formed therewith and a pressing sleeve, which can be previously joined to the coupling body. The coupling body and the pressing sleeve can be previously joined by a locking or interlocking connection.
Claims19
A coupler for conduits, comprising:
- a coupling body having at least one coupling part, said coupling body having a groove and an outwardly extending shoulder juxtaposed to said groove, said shoulder having an outer surface with a non-circular configuration;
- a pressing sleeve disposed about said coupling part, said pressing sleeve having a projection extending generally radially inwardly, said projection being disposed in said groove in said coupling body, said shoulder of said coupling body being disposed within said pressing sleeve juxtaposed to said projection on said pressing sleeve, said pressing sleeve having a resilient portion, said resilient portion being enabled to be temporarily pressed into a sprung non-circular configuration to enable said resilient portion to pass over said outer surface of said shoulder, said resilient portion being enabled to assume an assembled configuration different from said non-circular sprung configuration when said resilient portion is no longer temporarily pressed;
- and
- an interlocking connection lockingly connecting said pressing sleeve to said coupling part.
1 more element
A coupler for conduits, comprising:
- a coupling body having at least one coupling part, said coupling body having a groove and an outwardly extending shoulder juxtaposed to said groove, said shoulder having an outer surface having a maximum diameter and a minimum diameter, said groove in said coupling body having an inner diameter less than said maximum diameter and less than said minimum diameter of said outer surface of said shoulder;
- a pressing sleeve disposed about said coupling part, said pressing sleeve having a projection extending generally radially inwardly, said projection being disposed in said groove in said coupling body, said shoulder of said coupling body being disposed within said pressing sleeve juxtaposed to said projection on said pressing sleeve;
- and
- an interlocking connection lockingly connecting said pressing sleeve to said coupling part.
1 more element
A coupler for conduits, comprising:
- a coupling body having at least one coupling part, said coupling body having at least one protuberance;
- a pressing sleeve disposed about said coupling part, said pressing sleeve including an end portion having an inner diameter, said pressing sleeve having at least one recess in which said protuberance is received, said protuberance having an outer diameter greater than said inner diameter of said end portion of said flexible sleeve, said end portion of said pressing sleeve being enabled to be flexed to a sprung configuration such that at least parts of said end portion of said pressing sleeve take on a diameter at least as great as the outer diameter of said protuberance to enable said pressing sleeve to be at least partially rotated relative to said coupling body;
- and
- an interlocking connection lockingly connecting said pressing sleeve to said coupling part.
1 more element
A coupler for conduits, comprising:
- a coupling body having at least one coupling part, said coupling body including a groove having groove walls, said coupling body having an outward protruding protuberance having a protuberance surface substantially coextensive with one of said groove walls;
- a pressing sleeve disposed about said coupling part, said pressing sleeve having a projection extending generally radially inwardly, said projection being disposed in said groove, said protuberance and said protuberance surface having a diameter greater than an outer diameter of said pressing sleeve;
- and
- an interlocking connection lockingly connecting said pressing sleeve to said coupling part.
1 more element
A method of assembling a coupler body and a pressing sleeve to provide a pre-assembled coupler unit to be used for coupling conduit section comprising:
- providing a coupler body having a circular groove portion and a non-circular portion juxtaposed to said groove;
- providing a flexible sleeve having an unsprung condition in which the flexible sleeve has a generally circular configuration;
- providing said flexible sleeve with an inwardly extending projection;
- pressing at least a part of said sleeve into a temporarily sprung condition in which said pressed part of said sleeve takes on a temporary non-circular configuration conforming generally to the configuration of said non-circular portion on said coupler body;
- sliding said pressed part of said pressed sleeve axially over said non-circular portion of said coupler body until the inner projection on the sleeve reaches the circular groove portion on said coupler body;
- removing the pressing of said part of said sleeve to thereby release the temporary sprung condition;
- and
- effecting insertion of said inner projection on said coupler body into said circular groove portion upon release of said sprung condition.
5 more elements
Dependencies are inferred from the claim text.