Hose sub-assembly

• US 5,624,074 A
• Filed: 10/26/1995
• Issued: 04/29/1997
• Est. Priority Date: 10/26/1995
• Status: Expired due to Term

• Current Assignee: Component Hardware Group Incorporated
• Original Assignee: Component Hardware Group Incorporated
• Inventors: Parisi, Bernard
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): Ganey, Steven J.
• Application Number:
  US08/548,405
• Time in Patent Office: 551 Days
• Field of Search: 239/525, 239/588, 285/149, 285/177, 285/251, 285/256, 138/134, 138/173
• US Class Current: 239/588
• CPC Class Codes: E03C 1/04 Water-basin installations specially adapted to wash-basins or baths valves, faucets, mixing valves, taps F16K
• CPC Class Codes: E03C 1/06 Devices for suspending or supporting the supply pipe or supply hose of a shower-bath showers per se A47K3/28
• CPC Class Codes: E03C 2001/0415 having an extendable water outlet
• CPC Class Codes: F16L 35/00 Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices

Abstract

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.

Claims

1. 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 sleeve telescopically receiving said hose and said nozzle assembly therein, said sleeve having an internal shoulder abutting said flange and an internal thread;

a nut having an externally threaded stem threaded into said internal thread of said sleeve, said stem including a transverse end surface opposite said end surface of said fitting; and

an O-ring disposed between said transverse surfaces of said fitting and said nut to seal said surfaces relative to each other.

2. A hose sub-assembly as set forth in claim 1 wherein said nut includes a collar with an internal thread extending from a distal end of said stem, an annular recess in said distal end of said stem, and a second O-ring disposed in said annular recess to seal against a member threaded into said collar.

3. A hose sub-assembly as set forth in claim 2 which further comprises a spray head assembly threaded into said collar of said nut, said spray head assembly having a transverse proximal end surface sealingly engaging said second O-ring.

4. A hose sub-assembly as set forth in claim 2 which further comprises a tubular grip having an externally threaded stem threaded into said collar of said nut, said stem of said grip having a transverse end surface sealingly engaging said second O-ring.

5. A sub-hose assembly as set forth in claim 1 which further comprises 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;

and a second sleeve telescopically receiving said hose and said second nozzle assembly therein.

6. A hose sub-assembly as set forth in claim 5 which further comprises a spiral wound metal casing secured to and between said sleeves with said hose received telescopically therein.

7. A hose sub-assembly as set forth in claim 6 which further comprises a strain relief coil secured in and extending from said second sleeve, said coil receiving one end of said spiral wound metal casing therein in reinforcing relation.

8. A hose sub-assembly as set forth in claim 7 which further comprises a coiled spring mounted at an inlet end of said hose about said second sleeve and extending along said hose and said metal sleeve.

9. A hose sub-assembly as set forth in claim 5 which further comprises a second nut having an externally threaded stem threaded into said second sleeve and including a transverse end surface, and an O-ring disposed between said end surfaces of said fitting of said second nozzle assembly and said second nut in sealing relation.

10. A sub-hose assembly as set forth in claim 9 wherein said second nut has an internally threaded collar for threadably receiving a riser pipe therein.

11. A sub-hose assembly as set forth in claim 1 wherein said fitting has an externally threaded stem threaded into said hose.

12. A sub-hose assembly as set forth in claim 11 further comprising a ferrule disposed over said discharge end of said hose in circumferentially compressed relation to frictionally secure said stem of said fitting in said hose.

13. 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.

14. A hose sub-assembly as set forth in claim 13 wherein each said nut includes a collar with an internal thread extending from a distal end of said stem and, an annular recess in said distal end of said stem, and wherein each nut includes another O-ring disposed in said annular recess to seal against a member threaded into said collar.

15. A hose sub-assembly as set forth in claim 14 which further comprises a spray head assembly threaded into said collar of said first nut, said spray head assembly having a transverse proximal end surface sealingly engaging said another O-ring.

16. A hose sub-assembly as set forth in claim 14 which further comprises a tubular grip having an externally threaded stem threaded into said collar of said first nut, said stem of said grip having a transverse end surface sealingly engaging said another O-ring in said first nut.