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1. WO2000014456 - CONTROL SYSTEM FOR BATHERS

Publication Number WO/2000/014456
Publication Date 16.03.2000
International Application No. PCT/US1999/019720
International Filing Date 31.08.1999
Chapter 2 Demand Filed 24.03.2000
IPC
F24H 9/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
9Details
20Arrangement or mounting of control or safety devices
H02H 3/33 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
26responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
32involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
33using summation current transformers
H02H 5/10 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
5Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
10responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
CPC
A61H 2201/0176
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
2201Characteristics of apparatus not provided for in the preceding codes
01Constructive details
0173Means for preventing injuries
0176By stopping operation
A61H 33/005
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
33Bathing devices for special therapeutic or hygienic purposes
005Electrical circuits therefor
F24H 9/2028
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
9Details
20Arrangement or mounting of control or safety devices ; or methods
2007for water heaters
2014for heaters using electrical energy supply
2028Continuous-flow heaters
H02H 3/335
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection
26responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
32involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
33using summation current transformers
334with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
335the main function being self testing of the device
H02H 5/105
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
5Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
10responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
105responsive to deterioration or interruption of earth connection
Applicants
  • BALBOA INSTRUMENTS, INC. [US]/[US]
Inventors
  • CLINE, David, J.
  • OTTO, Cindy
  • DAYSTROM, Stefan
Agents
  • ROBERTS, Larry, K.
Priority Data
09/335,30916.06.1999US
60/099,20103.09.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTROL SYSTEM FOR BATHERS
(FR) SYSTEME DE COMMANDE POUR DISPOSITIFS DE BAIN
Abstract
(EN)
A control system for bathers includes an electronic controller which controls operation of an electric heater assembly connected in a water flow path for heating water. The heater assembly includes a heater housing and electric heater element. A solid state water temperature sensor apparatus provides electrical temperature signals to the controller indicative of water temperature at separated first and second locations on or within the heater housing. The presence of water in the heater housing is detected electronically, by turning on the heater, and monitoring the temperature sensors for unusual temperature rises or other faults for a period of time thereafter. A solid state water presence sensor apparatus can also be used to determine the presence of water within the heater housing, providing electrical water presence signals to the controller indicative of the presence or absence of a body of water within the heater housing. An independent circuit apparatus is connected to the water temperature sensor apparatus and to a power relay, automatically causing high voltage power to be disconnected from the heater assembly when the water temperature exceeds a predetermined temperature. The independent circuit apparatus requiring a manual reset once the water temperature has dropped below a predtermined level to allow the high voltage power to be reconnected to the heater assembly. The system includes ground continuity detection, ground current detection and ground fault detection circuits.
(FR)
L'invention concerne un système de commande pour dispositifs de bain comprenant un régulateur électronique qui agit sur le fonctionnement d'un ensemble de chauffant électrique relié à une conduite d'eau servant à chauffer l'eau. L'ensemble chauffant comprend un boîtier chauffant et un élément chauffant électrique. On peut également utiliser une sonde transistorisée pour déterminer la présence d'eau à l'intérieur du boîtier chauffant, qui émet des signaux électriques au régulateur indiquant la présence ou l'absence d'un corps aqueux à l'intérieur du boîtier chauffant. On connecte un circuit indépendant à la sonde thermométrique transistorisée et à un relais de puissance, ce qui provoque automatiquement la déconnexion d'une alimentation de haute tension de l'ensemble chauffant quand la température de l'eau est supérieure à une température prédéterminée. Il est nécessaire d'effectuer une remise à zéro manuelle du circuit indépendant une fois que la température de l'eau est passée au dessous d'un niveau prédéterminé, de manière à reconnecter l'alimentation de haute tension à l'ensemble chauffant. Ledit système comprend des circuits de détection de mise à la masse, de détection de courant à la terre et de détection de défaut à la terre.
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