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The hose sub-assembly is provided with a nozzle assembly at each end which includes a fitting with a flat transverse end surface. In addition, a nut which carries an O-ring in a recess at the end surface is threaded into a sleeve in which the nozzle assembly is mounted. The O-rings provide a flat su

The hose sub-assembly is provided with a nozzle assembly at each end which includes a fitting with a flat transverse end surface. In addition, a nut which carries an O-ring in a recess at the end surface is threaded into a sleeve in which the nozzle assembly is mounted. The O-rings provide a flat surface-to-surface sealing arrangement to reduce the risk of damage to the O-ring while enhancing the sealing characteristics. Each nut and O-ring is biased against the nozzle assembly by a stretched outer metal casing.

대표청구항 ▼

A hose sub-assembly comprising a flexible hose for conveying water therethrough; a nozzle assembly at at least one end of said hose for expelling water therefrom, said nozzle assembly including a hollow fitting secured to said hose for passage of water therethrough, said fitting having an outwardly

A hose sub-assembly comprising a flexible hose for conveying water therethrough; a nozzle assembly at at least one end of said hose for expelling water therefrom, said nozzle assembly including a hollow fitting secured to said hose for passage of water therethrough, said fitting having an outwardly directed flange with a transverse end surface; a first sleeve telescopically receiving said hose and said nozzle assembly therein, said sleeve having an internal shoulder abutting said flange and an internal thread; a first nut having an externally threaded stem threaded into said internal thread of said sleeve, said stem including a flat end surface opposite said end surface of said fitting; a first O-ring disposed between said surfaces of said fitting and said nut to seal said surfaces relative to each other; a second nozzle assembly at an opposite end of said hose for passage of water into said hose, said second nozzle assembly having a second hollow fitting secured to said hose for passage of water therethrough, said second fitting having a flange with a transverse end surface; a second sleeve telescopically receiving said hose and said second nozzle assembly therein, said second sleeve having an internal shoulder abutting said flange of said second fitting; a spiral wound metal casing threaded into said sleeves in stretching relation with said hose received telescopically therein; a second nut having an externally threaded stem threaded into said second sleeve and including a transverse end surface; and a second O-ring disposed between said end surfaces of said second fitting and said second nut in sealing relation.