JPH0368935U - - Google Patents
Info
- Publication number
- JPH0368935U JPH0368935U JP12452789U JP12452789U JPH0368935U JP H0368935 U JPH0368935 U JP H0368935U JP 12452789 U JP12452789 U JP 12452789U JP 12452789 U JP12452789 U JP 12452789U JP H0368935 U JPH0368935 U JP H0368935U
- Authority
- JP
- Japan
- Prior art keywords
- pipe joint
- lower electrodes
- contact
- resistance heater
- sandwiching
- 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
- 238000010586 diagram Methods 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Pipe Accessories (AREA)
- Control Of Resistance Heating (AREA)
Description
第１図は本考案の一実施例を示す説明図、第２
図は形状記憶合金管継手を管を接続した状態で示
す説明図、第３図は従来の通電接触抵抗加熱器の
説明図である。
２……管継手、１０……電極、１１……接触部
。
Fig. 1 is an explanatory diagram showing one embodiment of the present invention;
The figure is an explanatory diagram showing a shape memory alloy pipe joint in a state where pipes are connected, and FIG. 3 is an explanatory diagram of a conventional current-carrying contact resistance heater. 2... Pipe joint, 10... Electrode, 11... Contact portion.
Claims (1)
る通電接触抵抗加熱器において、上下電極を合わ
せて３箇所以上で管継手の外周に接触する接触部
を設けたことを特徴とする管継手加熱器。 A current-carrying contact resistance heater that heats a pipe joint by sandwiching it between a pair of upper and lower electrodes, characterized in that the upper and lower electrodes are provided with contact portions that contact the outer periphery of the pipe joint at three or more locations in total. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12452789U JPH0368935U (en) | 1989-10-26 | 1989-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12452789U JPH0368935U (en) | 1989-10-26 | 1989-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368935U true JPH0368935U (en) | 1991-07-08 |
Family
ID=31672438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12452789U Pending JPH0368935U (en) | 1989-10-26 | 1989-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009074352A (en) * | 2007-08-31 | 2009-04-09 | Kyowa Sangyo Kk | Bottom seat material of manhole, manufacturing method of the bottom seat material of manhole, construction method of bottom of manhole using the bottom seat material of manhole, and remodeling method of bottom of manhole |
-
1989
- 1989-10-26 JP JP12452789U patent/JPH0368935U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009074352A (en) * | 2007-08-31 | 2009-04-09 | Kyowa Sangyo Kk | Bottom seat material of manhole, manufacturing method of the bottom seat material of manhole, construction method of bottom of manhole using the bottom seat material of manhole, and remodeling method of bottom of manhole |