Reverse taper ring lock coupler and method
First Claim
1. In a closed fluid containment system of the type that includes an elastomeric hose coupled to a nipple wherein the hose has a coefficient of expansion greater than a coefficient of expansion of the nipple, the improvement of substantially eliminating cold temperature leakage of a fluid between the nipple and coupled hose, the improvement comprising using a nipple that has an obverse taper extending to a maximum diameter of the nipple and a reverse taper extending from the maximum diameter of the nipple, the rise and fall from the maximum diameter establishing a radial deflection that radially deflects and tensions an end portion of the hose against the nipple as established by an elastic modulus of the elastomer of the hose, and thereby seals the hose and the nipple against cold leakage.
2 Assignments
0 Petitions
Accused Products
Abstract
A T-shaped connector for use in automotive radiator cooling systems, in which each nipple is radially enlarged to form a substantially frusto-conical obverse taper, an apex, and a substantially frusto-conical reverse taper having one or more shouldered steps cut into it. The height of the apex is determined as a function of the elastic properties of the rubber hose to be connected to the coupling, a rubber hose is slid onto and over the radially enlarged portion, and a substantially frusto-conical ring is seated onto that portion of the hose fitting over the reverse taper of the nipple.
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Citations
33 Claims
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1. In a closed fluid containment system of the type that includes an elastomeric hose coupled to a nipple wherein the hose has a coefficient of expansion greater than a coefficient of expansion of the nipple, the improvement of substantially eliminating cold temperature leakage of a fluid between the nipple and coupled hose, the improvement comprising using a nipple that has an obverse taper extending to a maximum diameter of the nipple and a reverse taper extending from the maximum diameter of the nipple, the rise and fall from the maximum diameter establishing a radial deflection that radially deflects and tensions an end portion of the hose against the nipple as established by an elastic modulus of the elastomer of the hose, and thereby seals the hose and the nipple against cold leakage.
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2. In a method for connecting an elastomeric hose by sliding and stetching it over a nipple that has an obverse taper extending to a maximum diameter of the nipple and a reverse taper extending from the maximum diameter of the nipple, and wherein the hose has a coefficient of expansion greater than a coefficient of expansion of the nipple, the improvement of sealing the hose and nipple and substantially eliminating cold temperature leakage of a fluid between the nipple and hose at a temperature at which a desired pressure must be sealed against, the improvement comprising the steps of:
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constructing the nipple to have the reverse taper rise to an apex at said maximum diameter and fall from the apex in an obverse taper, the rise to and fall from the maximum diameter establishing a minimum radial deflection for the hose as required to seal against the desired pressure at a temperature of and for the elastic modulus of the elastomeric material of the hose; and during the step of sliding and stretching the hose over the nipple, the steps of radially deflecting an end portion of the hose to at least said minimum radial deflection while simultaneously radially tensioning the end portion of the hose against the nipple and thereby sealing the hose and nipple against cold leakage. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a coupled hose of the type that includes an elastomeric hose stretched over a nipple that has an obverse taper extending to a maximum diameter of the nipple and a reverse taper extending from the maximum diameter of the nipple, and wherein the hose has a greater coefficient of expansion than a coefficient of expansion of the nipple, the improvement of a means for sealing the hose and nipple and substantially eliminating cold temperature leakage of a fluid between the nipple and hose at a temperature at which a desired pressure must be sealed against, the improvement comprising:
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the nipple having a reverse taper that rises to an apex at said maximum diameter and falls from the apex in an obverse taper, the rise to and fall from the maximum diameter establishing a minimum radial deflection of the hose as required to seal against the desired pressure at a temperature of and for the elastic modulus of the elastomeric material of the hose; and an end portion of the hose stretched over the nipple and radially deflected to at least said minimum radial deflection, and the end portion of the hose radially tensioned against the nipple and thereby sealing the hose and nipple against cold leakage. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification