Abstract The invention relates to a staple coupling of the kind comprising interfitting male and female members for the connection of hose within a fluid system, sealing means (15) provided on at least one of the members to provide a fluid tight seal between the members and means to prevent separation of the members comprising external and internal grooves (33, 27) on the members respectively which register with one another when the members are engaged and holes (26) 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, in which at least one of the staple, the grooves and the holes to receive the staple is shaped so as to allow limited axial movement of the two coupling 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, means being provided to urge the members to the locked position in use.
A staple coupling of the kind comprising interfitting male (30) and female (10) members for the connection of hose (31) within a fluid system, sealing means (15) provided on at least one of the members to provide a fluid tight seal between the members and means to prevent separation of the members comprising external and internal grooves (33, 27) on the members respectively which register with one another when the members are engaged and holes (26) on the female member to receive a staple (39), 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 characterised in that at least one of the staple (39), the grooves (33, 27) and the holes (26) to receive the staple is shaped so as to allow limited axial movement of the two coupling 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, means (20) being provided to urge the members to the locked position in use.
Claim 2
Dependent Claim
196 words
A staple coupling of the kind comprising interfitting male (30) and female (10) members for the connection of hose (31) within a fluid system, sealing means (15) provided on at least one of the members to provide a fluid tight seal between the members and means to prevent separation of the members comprising external and internal grooves (33, 27) on the members respectively which register with one another when the members are engaged and holes (26) on the female member to receive a staple (39), 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 characterised in that at least one of the staple (39), the grooves (33, 27) and the holes (26) to receive the staple is shaped so as to allow limited axial movement of the two coupling 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, means (20) being provided to urge the members to the locked position in use.
Claim 3
Dependent Claim
25 words
A staple coupling as claimed in claim 1 in which resilient means (20) are provided which tend to move the members to their locked position.
Claim 4
Dependent Claim
58 words
A staple coupling as claimed in claim 2 in which the resilient means comprises a resilient ring (20) which is forced to roll along the cylindrical surface (19) on one member by relative axial movement of the member as the two members are connected whereby the ring tends to separate the two members to regain its natural shape.
Claim 5
Dependent Claim
33 words
A staple coupling as claimed in claim 3 in which the surface is tapered and the ring is engaged by a cylindrical tapered surface (35) on the other member having an opposite taper.
Claim 6
Dependent Claim
52 words
A staple coupling as claimed in any of claims 1 to 4 in which the axial movement of the members to the locked position is provided by a recess or recesses (42) on the staple which may allow the staple to engage a recess or recesses (34) adjacent one of the grooves.
Claim 7
Dependent Claim
54 words
A staple coupling as claimed in any of claims 1 to 5 in which the holes for receiving the staple are provided on a portion (2)of the female member which is rotatable relative to the rest of the member to allow insertion of the staple at any position of rotation of the female member.
References Cited (Backward Citations)
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