Pipe joints or couplings – Essential catch
Patent
1981-09-28
1984-01-03
Arola, Dave W.
Pipe joints or couplings
Essential catch
285331, 285DIG4, F16L 3708
Patent
active
044238916
ABSTRACT:
A random length of corrugated hose forms part of a male/female coupling. According to the preferred embodiment the male connector is formed around the corrugated hose itself. One or more O-rings are seated in the exterior grooves closest to the end of the hose to be sealed. A split lock ring is then placed in one of the grooves behind the O-ring seals. The combination comprises the male portion of the invention which is received in a cavity in the female connector. A spring-loaded retaining clip is carried by a pair of parallel grooves in the female connector and adapted to close behind the split lock ring thereby preventing the female connector from disengaging from the corrugated hose. According to an alternative embodiment the O-ring seal may be placed inside the corrugated hose, thereby making the corrugated hose the female portion of the coupling which is adapted to receive a complimentary male connector.
REFERENCES:
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patent: 2441344 (1948-05-01), Bosworth
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patent: 2535016 (1950-12-01), Launder
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patent: 4046451 (1977-09-01), Juds et al.
patent: 4141576 (1979-02-01), Lupke
patent: 4368904 (1983-01-01), Lanz
Arola Dave W.
Woodbridge Richard C.
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