Claims
- 1. An electro-fusion fitting for coupling a member to be coupled, said member to be coupled made of a first synthetic resin material and having a curved first joint surface, said fitting comprising:
- a body made of a second synthetic resin material and having a second joint surface forming a curved surface which substantially conforms to said first joint surface of said member to be coupled, said first and second synthetic resin material having first and second fusion temperatures, respectively; and
- a solid heater element completely embedded within said body, said solid heater element having a generally tubular shape, a plurality of projections extending generally perpendicularly from a surface of said solid heater element, said solid heater element including a magnetic alloy unit, and said magnetic alloy unit having a Curie temperature equal to or higher than said first and second fusion temperatures.
- 2. An electro-fusion fitting according to claim 1, wherein said projections extend radially outward from said surface.
- 3. An electro-fusion fitting according to claim 1, wherein said projections are cylindrical.
- 4. An electro-fusion fitting according to claim 1, wherein said projections are rectangular.
- 5. An electro-fusion fitting according to claim 1, wherein each of said projections is positioned an approximately equal distance from each adjacent projection.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-86847 |
Mar 1990 |
JPX |
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Parent Case Info
This is a continuation of PCT/JP91/00412 Mar. 29, 1991, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (6)
Number |
Date |
Country |
54-58777 |
May 1979 |
JPX |
109996 |
May 1986 |
JPX |
62-50122 |
Mar 1987 |
JPX |
272535 |
Nov 1988 |
JPX |
8002124 |
Oct 1980 |
WOX |
8002405 |
Sep 1981 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
776378 |
Jan 1992 |
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