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US 2021/0172552 A1Published application
Anti-Rotation Locking Mechanism and System
AssigneeJDR Cable Systems Ltd.
InventorsPhilip Allan Ward, Archibald Simon Reid
Life of this patent
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Abstract
The invention relates to a fitting provided on the end of a pressurized hose or pipe. The invention provides a fitting having a spigot and a ferrule part in which opposing recess and projecting parts are provided to engage each other and prevent the two parts unwinding from each other.
Claims20
A fitting for attachment to a hose, the fitting comprising:
- a spigot having a hose engaging portion and a threaded portion;
- a ferrule having a hose engaging portion and a threaded portion for screwing the spigot and ferrule together;
- and
- a lock arrangement for preventing relative rotation of the spigot and ferrule in at least one direction, the lock arrangement comprising:
- a recess formed in a surface of one of the spigot and the ferrule;
- and
- an engaging protrusion projecting from an opposing surface of the body of the other of the spigot and the ferrule and projecting into the recess, wherein
- said surface and said opposing surface are arranged such that relative rotation of the spigot and ferrule causes translation of said surface relative to said opposing surface such that the engaging protrusion engages the side of the recess for preventing rotation.
5 more elements
A method of constructing a fitting for attachment to a hose, the fitting comprising a spigot having a hose engaging portion and a threaded portion;
- and a ferrule having a hose engaging portion and a threaded portion for screwing the spigot and ferrule together, the method comprising:
- forming a recess in a surface of one of the spigot and the ferrule;
- screwing the threaded portion of the spigot into the threaded portion of the ferrule to join the ferrule and spigot;
- driving a staking tool into a part of the body of the other of the spigot and the ferrule which does not have the recess, at a part of the body adjacent to the recess, to displace a portion of the body to form an engaging protrusion which projects into the recess to resist translation of a surface of the body opposing the recess relative to said surface in which the recess is provided and thereby resist relative rotation of the spigot and ferrule.
1 more element
Dependencies are inferred from the claim text.