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21. 发明专利

JP2536143B2 失效
公开(公告)号：JP2536143B2
公开(公告)日：1996-09-18
申请号：JP8756689
申请日：1989-04-05
申请人： NORITSU KK
发明人： TANI MASAMI , NOMURA HIDEKI , MITATE KUNI , NAKAMURA YUTAKA , YANADA AKIHIRO , HADO SAICHIRO , OBARA HIROKI , AOKI ISAO , MATSUO TAKAHIRO
IPC分类号： F24H1/00 , F24H1/46

22. 发明专利

JPH0344719B2 失效
公开(公告)号：JPH0344719B2
公开(公告)日：1991-07-08
申请号：JP29737785
申请日：1985-12-27
申请人： NORITSU KK
发明人： IKEUCHI YASUHIDE , EGAMI TOYOHIKO , MATSUO TAKAHIRO
IPC分类号： F24H1/00 , H04Q9/00

23. 发明专利

JPS63197847A AUTOMATIC BATH SYSTEM 失效
公开(公告)号：JPS63197847A
公开(公告)日：1988-08-16
申请号：JP2914087
申请日：1987-02-10
申请人： NORITSU KK
发明人： IKEUCHI YASUHIDE , MATSUO TAKAHIRO , NOMURA HIDEKI
IPC分类号： F24H1/00
摘要： PURPOSE:To prevent the occurrence of erroneous detection of a water level and to reduce increase of an error in a water level and a hot water feed time, by a method wherein a pressure sensor is situated to one of the outbound and inbound pipings of an additional burning circulation passage, air in the interior of a pipe on the pressure sensor side is purged during the initial stage of starting of hot water feed, and thereafter, when the pressure sensor detects a given value, and air purge is effected for a short time to perform detection of a water pressure. CONSTITUTION:A pressure sensor 11 is located in the one piping 9 of outbound and inbound pipings 8 and 9 constituting an additional circulation passage. Air in the pipe 9 on the pressure sensor side is purged for a specified time during the initial stage of starting of hot water drop feed, and thereafter, and a water pressure is detected by the pressure sensor 11 as hot water drop feed is carried out through the other pipe 8. When a given value is detected, after air in the pipe 9 on the pressure sensor 11 side is purged for a short time, a water pressure is detected. This constitution ensures detection of a water pressure by preventing the occurrence of erroneous detection due to replacement of air in the pipe 9, enables reduction of increment of water level from a set water level due to air purge, end permits shortening of time required for the automatic feed of hot water.

24. 发明专利

JPS63138229A PRESSURE DECIDING SYSTEM 失效
公开(公告)号：JPS63138229A
公开(公告)日：1988-06-10
申请号：JP28498786
申请日：1986-11-28
申请人： NORITSU KK
发明人： EGAMI TOYOHIKO , IKEUCHI YASUHIDE , MATSUBARA TADASHI , MATSUO TAKAHIRO , FUJIMOTO FUMIMASA , TANI MASAMI , SUGA TOSHIKI , NOMURA HIDEKI , NAKAMURA YUTAKA , HAMADA MAKOTO
IPC分类号： G01F23/14 , G01L19/12
摘要： PURPOSE:To prevent a malfunction caused by a water hammer phenomenon, by providing an output deciding means of a pressure sensor which is provided with a changeover valve of plural carrying paths for feeding water to a water tank from a pump, and provided on the carrying path, and an abnormal high pressure deciding means or an output maintenance deciding means. CONSTITUTION:Plural pieces of carrying paths for feeding water to a water tank from a pump are provided, and among them, one carrying path is provided with a pressure sensor 11 for detecting a hydraulic pressure of the water tank. Also, a changeover valve for connecting a discharge side of the pump and each carrying path is provided. An output deciding means 12 inputs an output of the sensor 11 and decides whether an output of an H level exists or not. Subsequently, whether the output of the sensor 11 exceeds a prescribed normal upper limit level or not is decided by an abnormal high pressure deciding means 13. Moreover, whether the output of the sensor 11 is maintaining an H level state or not is decided by an output maintenance deciding means 14. In such a way, the pressure detection is executed, and a malfunction caused by a water hammer phenomenon, etc. can be prevented.

25. 发明专利

JPS63118554A AUTOMATIC BATH DEVICE 失效
公开(公告)号：JPS63118554A
公开(公告)日：1988-05-23
申请号：JP26448686
申请日：1986-11-05
申请人： NORITSU KK
发明人： TANI MASAMI , NOMURA HIDEKI , NAKAMURA YUTAKA , YANADA AKIHIRO , HAMADA MAKOTO , EGAMI TOYOHIKO , IKEUCHI YASUHIDE , MATSUO TAKAHIRO , MATSUBARA TADASHI , TORIMOTO YOSHIZUMI , SUGA TOSHIKI
IPC分类号： F24H1/00
摘要： PURPOSE:To shorten the filling time and improve the service life of equipment by accurately detecting the water level by providing a circulation pipe outside the bathroom with a water pressure sensor, said circulation pipe being air purged at the time of filling bath with water and used thereafter exclusively for water pressure sensing, and again performing the air purge and water pressure sensing after the water pressure sensor detected a predetermined water pressure. CONSTITUTION:When hot water is collected in a hopper 13, a water level switch 18 detects such, and, based on the detection signal, a pump 10 is operated to cause hot water to flow through a bypass pipe 14 and a return pipe 9 to purge air. When the air purge is completed after a certain time, a three-way valve 16 is switched to the feed pipe side to fill a bath tube 4 with water through a feed pipe 8, while a return pipe 9 serves exclusively as a water pressure sensing pipe which samples the water pressure. As the filling advances and the pressure sensor 11 detects a predetermined water pressure, the three-way valve 16 is again switched to purge air from the return pipe 9. After the air purge, the three-way valve 16 is switched to again read the water pressure. If the predetermined water pressure is detected, it is determined that the set water level L has been reached.

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