Reinforced hose and method

• US 3,866,632 A
• Filed: 07/02/1973
• Issued: 02/18/1975
• Est. Priority Date: 07/02/1973
• Status: Expired due to Term

• Current Assignee: William G. Schaffer
• Original Assignee: William G. Schaffer
• Inventors: Schaffer, William G.
• Primary Examiner(s): Queisser, Richard C.
• Assistant Examiner(s): Yasich, Daniel M.
• Application Number:
  US05/375,965
• Time in Patent Office: 596 Days
• Field of Search: 138/130,129,137,124,125,126,132
• US Class Current: 138/130
• CPC Class Codes: B29C 48/09 Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
• CPC Class Codes: B29C 48/153 Coating both inner and outer surfaces
• CPC Class Codes: F16L 11/082 two layers

Abstract

A flexible hose with a tube having one or more ribs radially extending therefrom, the tube reinforced with a plurality of twined strands that are mechanically retained in spaced relationship by the rib or ribs.

Claims

1. A flexible hose comprising:

a polymeric tube;

a plurality of circumferentially spaced ribs integral with and radially extending from the exterior of the tube;

a reinforcement of oppositely wound textile strands twined over the tube, the strands deforming portions of the ribs at points of contact therewith, undeformed portions of the ribs extending radially past the strands, and the ribs deformed to a point near the tube whereby the ribs mechanically hold and substantially maintain the strands of the reinforcement in spaced relationship on the tube; and

a cover formed over the tube, reinforcements, and ribs, the undeformed portions of the ribs extending into portions of the cover mechanically interlocking their width.

2. A hose as set forth in claim 1 wherein the ribs have a cross-section shape that is generally triangular with an apex oriented substantially radially from the tube.

3. A hose as set forth in claim 1 wherein the ribs have a maximum width that is generally equal to or less than the strand gauge of the reinforcement.

4. A hose as set forth in claim 1 wherein the ribs are substantially equally circumferentially spaced around the tube.

5. A flexible hose of the type having a tube and a cover sandwiching an oppositely spiralled twined textile reinforcement of yarn strands in which the improvement comprises:

at least one rib integral with and extending generally radially from the exterior of the tube, the rib deformed by the reinforcement at each point of contact therewith, undeformed portions of the rib extending radially past the strands, and the rib deformed to a point near the tube;

whereby the rib mechanically holds and substantially maintains the strands of reinforcement in fixed spaced relationship with the tube, the undeformed portions of the ribs extending into portions of the cover mechanically interlocking therewith.