Cuffed hose and method of manufacture
AssigneeThe Goodyear Tire & Rubber Company
InventorsAndre Georges Cook, Jacques Bernard Emond, Pascal Langlois
Life of this patent
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Abstract
The present invention is directed towards an improved flexible hose (10). The hose (10) is comprised of at least a flexible material (28) and a reinforcing rod (12) positioned externally of the flexible material (28). Terminal ends (16, 18) define both the flexible material (28) and the reinforcing rod (12). At least one terminal end (16) of the reinforcing rod (12) is located short of the terminal ends (18) of the flexible material (28), so that the non-reinforced end of the flexible material (28) forms a soft cuff (20) adapted to be received by a hose fitting. Also disclosed is an improved method of manufacturing the flexible hose (10).
Claims14
An improved flexible hose (10) comprising a flexible material (14) and a reinforcing rod (12) positioned externally of the flexible material (14), the flexible material (14) being formed with terminal ends (18), the improvement being characterized by:
- the reinforcing rod (12) having at least one terminal end (16) being located short of the terminal ends (18) of the flexible material (14), the flexible material (14) thus becoming a soft cuff (20) adapted to be received by a hose fitting.
An improved method of manufacturing a hose (10) comprising
- a) rotating a mandrel (30)
- b) feeding a length of material (42) onto the mandrel (30) as the mandrel (30) rotates, to build a hose length (32) on the mandrel (30).
- c) feeding a second length of material in the form of a reinforcing rod (12) onto the mandrel (30) as the mandrel (30) rotates to form a helical reinforcing rod (12) on the hose length (32), and
- d) curing the hose length (32), the improvement being characterized by:
- prior to feeding the reinforcing rod (12) onto the mandrel (30), modifying the
- hose length (32) to create non-adhesive regions (46).
A hose length (32) comprising at least one elastomeric layer (22 or 28) and a reinforcing rod (12) helically wound externally of the elastomeric layer (22), the improvement being characterized by:
- non-adhesive regions (46) periodically spaced along the hose length (32).
Dependencies are inferred from the claim text.