Pipe connector
First Claim
Patent Images
1. An internally threaded, fluid-tight tubular connector device, comprising:
- a tubular body of a plastic material;
an annular insert situated within said body of said plastic material, said insert being made of a second material dissimilar to that of said tubular body;
said insert having an internal thread;
said insert having a thin annular flange means extending a substantial distance radially outward from the outer circumferential surface of said insert for locking said insert into the material of said tubular body;
a measurable difference between the outer circumference of said annular flange means and said outer circumferential surface of said insert being substantially greater than the thickness of said annular flange means;
said annular flange means providing at least one surface normal to said outer circumferential surface of said annular insert;
said insert having an annular recess in said outer circumferential surface and a sealing O-ring positioned in said recess.
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Abstract
An improved connecting device for of securing a pipe fitting of one material to a pipe of another. This invention provides a connector body with an insert fitting which does not leak therebetween. Further, the invented device has an integral annular flange, which extends into the surrounding body thereby preventing the body from expanding with heat and slipping with relation to the insert upon engaging the fitting with a nipple or other pipe material, and twisting forcefully.
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Citations
12 Claims
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1. An internally threaded, fluid-tight tubular connector device, comprising:
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a tubular body of a plastic material; an annular insert situated within said body of said plastic material, said insert being made of a second material dissimilar to that of said tubular body; said insert having an internal thread; said insert having a thin annular flange means extending a substantial distance radially outward from the outer circumferential surface of said insert for locking said insert into the material of said tubular body; a measurable difference between the outer circumference of said annular flange means and said outer circumferential surface of said insert being substantially greater than the thickness of said annular flange means; said annular flange means providing at least one surface normal to said outer circumferential surface of said annular insert; said insert having an annular recess in said outer circumferential surface and a sealing O-ring positioned in said recess. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An internally threaded, fluid-tight tubular connector device, comprising:
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a tubular body of a castable material selected from the group consisting of ceramics, thermoset plastics, and thermoplastics; an annular insert situated within said body of said castable material, said insert being made of a second material different from that of said tubular body; said insert having an internal thread; said insert having a thin annular flange means extending a substantial distance radially outward from the outer circumferential surface of said insert for locking said insert into the material of said tubular body; said annular flange means having a width less than its length; said annular flange means providing at least one surface normal to outer circumferential surface of said insert; said insert having an annular recess in said outer circumferential surface and a sealing O-ring positioned in said recess.
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Specification