End fitting for hoses

Details End fitting for hoses End fitting for hoses

1975-02-28

1976-11-09

Callaghan, Thomas F.

Pipe joints or couplings

With fluid pressure seal

Expansible internal sleeve-type gasket

285111, 285256, 285259, F16L 1700, F16L 3320

Patent

active

039907295

ABSTRACT:
The specification discloses an end fitting for a tubular hose which fitting comprises a rigid tubular insert to be inserted within at least one layer of the hose, a ferrule to surround at least a portion of the insert to grip the said layer of the hose between the ferrule and the insert, an annular sealing member of resilient material, for example rubber or soft thermoplastic, having a first annular lip to make a lip seal with an inner wall of the hose and a second annular lip to make a lip seal with an annular surface on the insert and spring means to maintain the lips in initial contact with the hose and the insert until sufficient pressure builds up in the hose to form lip seals between the lips and the hose and the insert.

REFERENCES:
patent: 331170 (1885-11-01), Thompson
patent: 1490716 (1924-04-01), Schwennker
patent: 2165052 (1939-07-01), Hering
patent: 2340852 (1944-02-01), Wormeley
patent: 2453997 (1948-11-01), MacWilliam
patent: 2733941 (1956-02-01), Trevaskis
patent: 2750210 (1956-06-01), Trogdon et al.
patent: 2753196 (1956-07-01), Melsom
patent: 3799586 (1974-03-01), Caras et al.

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