JPS54159749A - Freeze preventive heater - Google Patents

Freeze preventive heater

Info

Publication number
JPS54159749A
JPS54159749A JP6770778A JP6770778A JPS54159749A JP S54159749 A JPS54159749 A JP S54159749A JP 6770778 A JP6770778 A JP 6770778A JP 6770778 A JP6770778 A JP 6770778A JP S54159749 A JPS54159749 A JP S54159749A
Authority
JP
Japan
Prior art keywords
heating wire
heating pipe
freeze
holder
heating
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.)
Granted
Application number
JP6770778A
Other languages
Japanese (ja)
Other versions
JPS6117116B2 (en
Inventor
Hiroshi Watabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6770778A priority Critical patent/JPS54159749A/en
Publication of JPS54159749A publication Critical patent/JPS54159749A/en
Publication of JPS6117116B2 publication Critical patent/JPS6117116B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To prevent freezing by remaining water by forming the holder into the shape which is appropriate to wind around the drain valve of the washer by cutting soft thermoplastic sheet, and by welding the soft tube with the sealed-in heating wire to the holder. CONSTITUTION:The heating pipe 26, which is formed by water-tightly sealing the soft thermoplastic tube 33 in which the freeze preventive heater 23 heating wire 34 is installed, is fitted on the soft thermoplastic holder sheet which is cut into the shape appropriate to be mounted on the drain valve 9. Although the heating wire 34 is connected in series with the heating pipe body 36,36' which is divided into two, if it is connected to each heating pipe 36,36' in parallel, the freeze preventive function can be made the most of when the heating wire 34 on one side is disconnected. Also, for such wide application, dividing the heating pipe 36,36' into two is extremely effective for freeze prevention.
JP6770778A 1978-06-07 1978-06-07 Freeze preventive heater Granted JPS54159749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6770778A JPS54159749A (en) 1978-06-07 1978-06-07 Freeze preventive heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6770778A JPS54159749A (en) 1978-06-07 1978-06-07 Freeze preventive heater

Publications (2)

Publication Number Publication Date
JPS54159749A true JPS54159749A (en) 1979-12-17
JPS6117116B2 JPS6117116B2 (en) 1986-05-06

Family

ID=13352690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6770778A Granted JPS54159749A (en) 1978-06-07 1978-06-07 Freeze preventive heater

Country Status (1)

Country Link
JP (1) JPS54159749A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100189U (en) * 1982-12-25 1984-07-06 日本電熱株式会社 Freeze prevention heater
US4558206A (en) * 1983-09-19 1985-12-10 Ball Randell D Electric heating apparatus for providing freeze protection for fluid-control devices at well sites
US4562857A (en) * 1983-09-19 1986-01-07 Ball Randell D Thermal insulation article
JPS62104392U (en) * 1985-12-23 1987-07-03
US5049724A (en) * 1989-04-12 1991-09-17 Anderson Robert A Thermal protection blanket for a blow out preventor
JP2008164115A (en) * 2006-12-28 2008-07-17 Taiyo Nippon Sanso Corp Heater device for heating piping

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100189U (en) * 1982-12-25 1984-07-06 日本電熱株式会社 Freeze prevention heater
US4558206A (en) * 1983-09-19 1985-12-10 Ball Randell D Electric heating apparatus for providing freeze protection for fluid-control devices at well sites
US4562857A (en) * 1983-09-19 1986-01-07 Ball Randell D Thermal insulation article
JPS62104392U (en) * 1985-12-23 1987-07-03
US5049724A (en) * 1989-04-12 1991-09-17 Anderson Robert A Thermal protection blanket for a blow out preventor
JP2008164115A (en) * 2006-12-28 2008-07-17 Taiyo Nippon Sanso Corp Heater device for heating piping

Also Published As

Publication number Publication date
JPS6117116B2 (en) 1986-05-06

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