Pipe joints or couplings – Essential catch
Patent
1986-09-08
1988-02-16
Callaghan, Thomas F.
Pipe joints or couplings
Essential catch
285321, F16L 2106
Patent
active
047250810
ABSTRACT:
A detachable plug assembly for making a connection between a pipe and an external unit such as a hose fitting or hydraulic unit, for example, in which the pipe can be automatically locked in a well-defined axial position in a bore of the external unit, and thus be assembled in a short time on an assembly line, particularly in the case of assembly by robots, without requiring special tools for either assembly or disassembly. The assembly comprises a bushing which is mountable in a fixed axial position on the pipe, the bushing having a conical shoulder at a forward end thereof for axially engaging the bore of the external unit and centering the pipe therein. The external unit has slots through which project the free ends of a locking element. The free ends extend into the bore of the external unit and engage a groove in the bushing for retaining the pipe in the bore of the external unit.
REFERENCES:
patent: 3127199 (1964-03-01), Roe
patent: 3314696 (1967-04-01), Ferguson et al.
patent: 3565464 (1971-02-01), Wolf
patent: 3625551 (1971-12-01), Branton
patent: 3628768 (1971-12-01), Hutt
patent: 3753582 (1973-08-01), Graham
patent: 4009896 (1977-03-01), Brewer
patent: 4059295 (1977-11-01), Helm
patent: 4063760 (1977-12-01), Moreiras
DIN 74 234, Sep. 1974.
DIN 74 233, Oct. 1963.
Callaghan Thomas F.
FAG Kugelfischer Georg Schafer (KGaA)
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