JPH0187397U - - Google Patents
Info
- Publication number
- JPH0187397U JPH0187397U JP18399887U JP18399887U JPH0187397U JP H0187397 U JPH0187397 U JP H0187397U JP 18399887 U JP18399887 U JP 18399887U JP 18399887 U JP18399887 U JP 18399887U JP H0187397 U JPH0187397 U JP H0187397U
- Authority
- JP
- Japan
- Prior art keywords
- metal tube
- semiconductor
- utility
- model registration
- coating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims 3
- 239000010410 layer Substances 0.000 claims 2
- 239000011810 insulating material Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
- Thermal Insulation (AREA)
- Resistance Heating (AREA)
Description
第１図乃至第３図は、いずれもこの考案の一実
施例を示す断面図である。
１……金属管、２……正の抵抗温度係数を有す
る半導電体、３……給電用導体、４……絶縁体、
５……保温材層、６……保温と絶縁機能を兼備し
た層。
1 to 3 are sectional views showing one embodiment of this invention. 1...Metal tube, 2...Semiconductor having a positive temperature coefficient of resistance, 3...Power supply conductor, 4...Insulator,
5... Heat insulation material layer, 6... Layer that has both heat retention and insulation functions.
Claims (1)
半導電体の被覆層を具備し、その半導電体の内部
には、少なくとも２本の給電用導体が金属管に対
して縦添え又は横巻き状態となるように埋設され
ているヒータ付き金属管。 (2) 上記半導電体と金属管の界面部及び半導電
体の外周に絶縁体の被覆層が存在することを特徴
とする実用新案登録請求の範囲第(1)項記載のヒ
ータ付き金属管。 (3) 最外層に保温材層を有していることを特徴
とする実用新案登録請求の範囲第(1)項又は第(2)
項記載のヒータ付き金属管。 (4) 上記半導電体外周の絶縁体被覆層が、保温
機能を兼備していることを特徴とする実用新案登
録請求の範囲第(2)項記載のヒータ付き金属管。[Claims for Utility Model Registration] (1) A coating layer of a semiconductor having a positive temperature coefficient of resistance is provided around a metal tube, and at least two power supply conductors are provided inside the semiconductor. A metal tube with a heater that is buried vertically or horizontally wrapped around the metal tube. (2) A metal tube with a heater according to claim (1) of the utility model registration claim, characterized in that an insulating coating layer is present at the interface between the semiconductor and the metal tube and at the outer periphery of the semiconductor. . (3) Utility model registration claim paragraph (1) or (2) characterized by having a heat insulating material layer as the outermost layer
Metal tube with heater as described in section. (4) The metal tube with a heater according to claim (2) of the utility model registration, wherein the insulating coating layer on the outer periphery of the semiconductor body also has a heat retention function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18399887U JPH0187397U (en) | 1987-12-01 | 1987-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18399887U JPH0187397U (en) | 1987-12-01 | 1987-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0187397U true JPH0187397U (en) | 1989-06-09 |
Family
ID=31475388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18399887U Pending JPH0187397U (en) | 1987-12-01 | 1987-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0187397U (en) |
-
1987
- 1987-12-01 JP JP18399887U patent/JPH0187397U/ja active Pending