Hose

Details Hose Hose

1995-10-24

1998-06-09

Brinson, Patrick F.

Pipes and tubular conduits

Combined

With end structure

138113, 138114, 138122, 285242, F16L 900

Patent

active

057621080

ABSTRACT:
A hose has an inner wall 1 of blow moulded tube and an outer wall 2 of continuous, spirally formed, corrugated tube. At each end of the hose, the inner wall extends further than the outer wall. The walls are separated by a rigid spacer 3 inserted into the end of the outer tube. The walls are united to a moulded connection member 4. This arrangement has a relatively long spigot 5 which extends from a cavity 6. The inner wall is slid onto the spigot as far as the bottom 8 of the cavity. A radially parting mould is placed around the connection member at a nose 9, within which the cavity extends. The mould has an aperture for the outer wall. On injection of material into the mould, the moulding 7 is formed in the cavity 6, along the extent of the inner wall on the spigot 5 as far as the spacer 3 and past the end 10 of this along an end portion 11 of the outer wall. The mould forms the outer diameter of the moulding to the dimension of the nose 9 and limits it from extending along the outside of the outer wall. The spacer limits the moulding from extending inside the outer tube and outside the inner wall. Due to its intimate contact with the walls 1,2 and the connection member 4, the moulding 7 fixes and seals the inner wall to the connection member and fixes the outer wall to the connection member.

REFERENCES:
patent: 3831635 (1974-08-01), Burton
patent: 4349049 (1982-09-01), Silvey
patent: 4508367 (1985-04-01), Oreopoulos et al.
patent: 4754782 (1988-07-01), Grantham
patent: 4922971 (1990-05-01), Grantham
patent: 5069253 (1991-12-01), Hadley
patent: 5203378 (1993-04-01), Williams
patent: 5285744 (1994-02-01), Grantham et al.
patent: 5299836 (1994-04-01), Mogavero
patent: 5413147 (1995-05-01), Moreiras et al.
patent: 5456502 (1995-10-01), Sharp

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