Pipe joints or couplings – Essential catch
Patent
1983-06-03
1986-02-18
Scanlan, Jr., Richard J.
Pipe joints or couplings
Essential catch
285321, 285314, 285 83, 285403, F16L 3700
Patent
active
045709807
ABSTRACT:
A staple coupling of the kind comprising interfitting male and female members for the connection of a hose within a fluid system, the members including respective external and internal circumferential grooves which register with one another when the members are fully engaged and holes on the female member to receive a staple, the holes being positioned and arranged so that when the staple is inserted into the holes the staple engages the registering grooves on the members to prevent separation of the members; a sealing O-ring provided on at least one of the members to provide a fluid tight seal between the members, and a generally U-shaped staple to prevent separation of the members; wherein at least one of the staple, the circumferential groove and the holes to receive the staple is shaped so as to allow limited axial movement of the male and female members in a separating direction to a locked position when the staple is fully inserted whereby the staple cannot be removed until the members are moved back to their unlocked position, and wherein a biasing O-ring is provided to urge the members to the locked position in use.
REFERENCES:
patent: 3490795 (1970-01-01), Hennlich
patent: 4059295 (1977-11-01), Helm
BTR plc
Scanlan, Jr. Richard J.
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