Btr Limited

Stanley H Goward

To facilitate eventual confirmation that an elongate article secured within an end fitting was fully inserted into the end fitting during assembly, the outer surface of the elongate article is provided with a two-part marking prior to assembly with the end fitting. The two-part marking is applied to the elongate article at a predetermined axial position from the end of the article such that in the case of a satisfactory assembly, in which for example the article is fully inserted in the end fitting, one part of the marking is exposed and another part is concealed. The exposed part serves to confirm that the article was marked prior to assembly with the end fitting and at least partial concealment of the other part of the marking confirms that the article extends sufficiently within the end fitting. The invention is especially suitable for confirming that in a hose assembly the end of a hose fully extends within the end fitting.

Assembly of an end fitting and an elongate article

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.

Growing community of inventors

Salisbury, United Kingdom

Stanley H Goward