Formable hose

• US 4,456,034 A
• Filed: 12/29/1980
• Issued: 06/26/1984
• Est. Priority Date: 02/19/1980
• Status: Expired due to Term

• Current Assignee: Gates Corporation (Gates Industrial Corp. Plc)
• Original Assignee: Gates Rubber Company (Gates Industrial Corp. Plc)
• Inventors: Bixby, Guy T.
• Primary Examiner(s): Bryant, III, James E.
• Application Number:
  US06/221,123
• Time in Patent Office: 1,275 Days
• Field of Search: 138/103, 138/121, 138/122, 138/129, 138/131, 138/139, 138/172, 138/DIG. 8
• US Class Current: 138/122
• CPC Class Codes: F16L 11/118 having arrangements for particular purposes, e.g. electrically conducting
• CPC Class Codes: Y10S 138/08 Bent shaped retained

Abstract

A collapse resistant hose is described which may be selectively deformed to a desired shape. It includes the usual elongated polymeric body, including an internal passageway in which is positioned a spring insert reinforcement. An axially extending rod means is positioned adjacent the spring to which it is intimately attached, permitting the hose to be deformed to a desired shape-retaining configuration by bending the rod beyond its yield point.

Claims

1. A hose adapted to be selectively deformed to a desired configuration, comprising:

an elongated flexible polymeric hose body having an internal passageway;

a helical coil spring insert reinforcement positioned within the passageway thereof and having portions positioned adjacent the hose body;

shaping member means positioned adjacent said portions of the spring means and selectively deformable to a desired shape-retaining configuration; and

means distinct from the shaping member means and spring means attaching the shaping member means to said portions of the spring means.

2. The hose of claim 1 wherein the hose body has a corrugated inner wall defined by troughs and crests, at least a portion of the spring insert means being positioned in said troughs.

3. The hose of claim 2 wherein the inner wall is corrugated in spiral convoluted form, and the helical coil spring insert is provided with turns positioned in the troughs adjacent the hose body and at least a portion of which makes substantially direct surface contact with the troughs.

4. The hose of claim 3 wherein at least one turn of the helical coil is oversized relative to the remaining turns, the oversized turn(s) making said direct surface contact with said trough(s).

5. The hose of claim 1 wherein the hose body has a substantially smooth bore inner wall.

6. The hose of claim 5 wherein the spring insert and/or shaping member extends lengthwise along only a portion of the internal passageway of the hose.

7. The hose of claim 6 wherein the hose is adapted to be deformed to the desired configuration through an angle of at least about 140°

.

8. The hose of claim 1 wherein the shaping member means is a rod of malleable material extending axially within the hose.

9. The hose of claim 3 wherein the attaching means is a continuous wrapping band alternately fastening spaced turns of the helical coil to the rod means at mutual juncture points therealong.

10. The hose of claim 1 whose coil insert reinforcement has turns of a first cross dimension, and at least one turn of a second cross dimension of relatively greater dimension than said first cross dimension.

11. A hose adapted to be selectively deformed to a desired configuration comprising:

an elongated normally straight polymeric hose body adapted to be flexed to said desired configuration;

a helical coil spring insert reinforcement formed of spaced turns positioned in the passageway and adjacent the polymeric hose body;

rod means positioned adjacent the spring means and selectively deformable to a desired shape-retaining configuration; and

means distinct from the spring means and rod means attaching the rod means to the spring means in mutually supportive relation.

12. The hose of claim 11 wherein the hose is substantially straight walled.

13. The hose of claim 11 wherein the attaching means is a continuous wrapping band alternately fastening spaced turns of the spring insert reinforcement means at mutually spaced juncture points, adapted and arranged so that the turns may undergo limited lateral movement relative to the rod means.

14. A hose adapted to be selectively deformed to a desired configuration, comprising:

an elongated normally straight polymeric hose body including a corrugated inner wall defined by troughs and crests;

a helical coil spring insert reinforcement positioned in the troughs, adjacent the hose body and within the passageway thereof;

rod means positioned adjacent the spring means and having a sufficient cross section and modulus to be selectively deformable to a desired shape retaining configuration within the hose; and

means distinct from the spring means and rod means attaching the rod means to the spring means in mutually supportive relation.

15. The hose of claim 14 wherein the inner wall is corrugated in spiral convoluted form, and the spring insert has turns fitting in the troughs of the spiral convolution.

16. The hose of claim 14 wherein the rod means is positioned interiorly of the spring insert means.

17. The hose of claim 15 wherein the attaching means is a continuous wrapping band alternately fastening spaced turns of the helical coil to the rod means at mutual juncture points therealong.

18. A collapse resistant molded hose adapted to be selectively deformed to a desired curved shape, comprising:

an elongated normally straight molded polymeric hose body including a spirally convoluted inner wall defined by alternating troughs and crests;

helical coil insert means having turns positioned in the troughs adjacent the hose body and at least a portion of which makes direct surface contact with the troughs;

yieldable rod means positioned interiorly adjacent the helical coil insert means extending axially within the hose, and deformable to a desired shape retaining configuration; and

means distinct from the helical coil insert means and rod means attaching the rod means to the helical coil insert means at turns thereof in mutually supportive relation.

19. The hose of claim 18 wherein the attaching means is a continuous wrapping band alternately fastening spaced turns of the helical coil to the rod means at mutually spaced juncture points, adapted and arranged so that the turns may undergo limited lateral, rotative movement relative to the rod means.

20. The hose of claim 19 wherein the attaching means substantially precludes axial movement of the rod means relative to the helical coil during normal usage of the hose.

21. The hose of claim 18 wherein the attaching means is a polymeric melt joining turns of the helical coil to the rods means at spaced points therealong.

22. The hose of claim 18 wherein the attaching means is an elongated rod member positioned exteriorly of the helical coil and securely fastened to the rod means at spaced points therealong, thereby tightly sandwiching turns of the helical coil between the exterior rod member and interior rod means.

23. The hose of claim 18 wherein the attaching means is a continuous wrapping band alternately fastening consecutive turns of the helical coil to the rod means at juncture points of the turns of the helical coil and the rod means.

24. A collapse resistant molded corrugated elastomeric hose adapted to be bent to a desired curved shape, comprising:

an elastomeric body having an embedded textile reinforcement, and a corrugated inner wall formed of alternate troughs and crests;

a non-embedded helical coil insert having turns positioned in the troughs, at least a portion of which makes direct surface contact with the bottom of the troughs;

an axially extending generally circular cross-sectioned yieldable rod positioned immediately adjacent the coil insert along its inner surface and deformable to a desired shape retaining configuration; and

means distinct from the rod and the helical coil attaching the rod to the coil insert in mutually supportive relation at discrete points therealong.

25. The hose of claim 24 wherein the attaching means is a continuous band alternately wrapping in half-hitch configuration spaced turns of the coil and the rod at mutual juncture points therealong.

26. In a collapse resistant formable hose kit comprising a polymeric flexible hose body having an internal passageway, and a composite coiled insert member adapted to be inserted in the passageway of the hose and retained in place, an improved composite insert member comprising:

a helical coil spring reinforcement having a plurality of coils spaced apart;

rod means positioned adjacent the spring reinforcement and selectively deformable to a desired shape-retaining configuration; and

means distinct from the helical coil reinforcement rod means attaching the rod means to the spring reinforcement in mutually supportive relation.

27. The insert of claim 26 wherein the flexible hose body has a corrugated inner wall defined by troughs and crests, and coils of the spring reinforcement are adapted to correspond and register in corresponding troughs of the inner wall to secure the same therein.