Hose

• US 3,212,528 A
• Filed: 02/13/1964
• Issued: 10/19/1965
• Est. Priority Date: 02/13/1964
• Status: Expired due to Term

• Current Assignee: Willard Haas
• Original Assignee: Willard Haas
• Inventors: Haas, Willard
• Application Number:
  US04/344,759
• Time in Patent Office: 614 Days
• US Class Current: 138/130
• CPC Class Codes: B29D 23/001 Pipes; Pipe joints pleated hoses B29D23/18
• CPC Class Codes: B29K 2021/00 Use of unspecified rubbers as moulding material
• CPC Class Codes: B29K 2105/06 containing reinforcements, fillers or inserts
• CPC Class Codes: F16L 11/088 comprising a combination of one or more layers of a helically wound cord or wire with one or more braided layers

Claims

1. A FLEXIBLE HOSE COMPRISING A TUBULAR WALL INCLUDING RUBBER MATERIAL AND AT LEAST TWO MUTUALLY CONCENTRIC PLIES EACH CONSISTING OF A MULTIPLICITY OF INDIVIDUAL RESILIENT FLEXIBLE HELICAL-SHAPED WIRES;

(A) ALL THE WIRES OF EACH PLY;

(1) BEING FORMED TO IMPART TO THEM AN INHERENT TENDENCY TO TAKE THE SHPAE OF A HELIX, AND (2) BEING DISPOSED IN THEIR RESPECTIVE PLIES IN PARALLEL HELICAL CONVOLUTIONS WHICH EXTEND AT AN ANGLE TO THE LONGITUDINAL AXIS OF THE HOSE WITHIN THE RANGE FROM ABOUT FIFTY-ONE (51) DEGREES TO ABOUT FIFTY-NINE (59) DEGREES;

(B) THE HELICAL CONVOLUTIONS IN WHICH THE WIRES OF THE RADIALLY INNER PLY OF SAID TWO PLIES ARE DISPOSED BEING OF OPPOSITE HAND TO THE HELICAL CONVOLUTIONS IN WHICH THE WIRES OF THE RADIALLY OUTER PLY ARE DISPOSED;

(C) ALL THE WIRES OF SAID RADIALLY INNER PLY BEING DISPOSED IN SAID PLY IN HELICAL CONVOLUTIONS HAVING A DIAMETER AND PITCH WHICH IS NOT SUBSTANTIALLY GREATER THAN THE DIAMETER AND PITCH, RESPECTIVELY, OF THE HELICAL CONVOLUTIONS WHICH SAID WIRES HAVE AN INHERENT TENDENCY TO TAKE;

AND (D) ALL THE WIRES OF SAID RADIALLY OUTER PLY BEING DISPOSED IN SAID PLY IN HELICAL CONVOLUTIONS THE SIZE OF WHICH DIFFERS FROM THE SIZE OF THE HELICAL CONVOLUTIONS WHICH SAID WIRES HAVE AN INHERENT TENDENCY TO TAKE IN A MANNER TO MAINTAIN THE WIRES OF THE OUTER PLY UNDER A STRESSED CONDITION IN WHICH THE WIRES EXERT GRIPPING PRESSURE ON THE UNDERLYING ADJACENT PORTIONS OF SAID TUBULAR WALL.