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1. (WO2001005349) SPA PRESSURE SENSING SYSTEM CAPABLE OF ENTRAPMENT DETECTION
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/005349 International Application No.: PCT/US2000/040390
Publication Date: 25.01.2001 International Filing Date: 14.07.2000
Chapter 2 Demand Filed: 08.02.2001
IPC:
A61H 33/00 (2006.01) ,F04D 15/00 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
H
PHYSICAL 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
33
Bathing devices for special therapeutic or hygienic purposes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
D
NON-POSITIVE-DISPLACEMENT PUMPS
15
Control, e.g. regulation, of pumps, pumping installations, or systems
Applicants: HYDROAIR A UNIT OF ITT INDUSTRIES, INC.[US/US]; 1317 West Grove Avenue Orange, CA 92665, US
Inventors: MCDONOUGH, William, B.; US
Agent: ALTMAN, Daniel, E.; Knobbe, Martens, Olson and Bear, LLP 620 Newport Center Drive, 16th floor Newport Beach, CA 92660, US
Priority Data:
09/354,93215.07.1999US
Title (EN) SPA PRESSURE SENSING SYSTEM CAPABLE OF ENTRAPMENT DETECTION
(FR) SYSTEME DE CAPTAGE DE PRESSION DE CUVE A REMOUS CAPABLE DE DETECTER UN PIEGEAGE
Abstract:
(EN) A control circuit for use with a spa system includes a pressure sensor (70) which generates a signal representative of the pressure in the system. A microcontroller (68) is coupled to receive the signal from the sensor and is configured to store a first pressure level. The microprocessor compares the first pressure level with the subsequently measured pressure level and generates a control signal if the comparison indicates a change in pressure which exceeds a predetermined amount. An electronically controlled switch (54) is coupled to receive the control signal from the microcontroller and turn electrical power to the pump off in response thereto.
(FR) L'invention concerne un circuit de régulation utilisé dans un système de cuve à remous, comprenant un capteur de pression (70) qui produit un signal représentatif de la pression dans le système. Un microcontrôleur (68) est couplé de façon à recevoir le signal du capteur, et est configuré de façon à stocker un premier niveau de pression. Un microprocesseur compare ce premier niveau de pression avec le niveau de pression mesuré ultérieurement, et produit un signal de commande si la comparaison indique un changement de pression qui dépasse une quantité prédéterminée. Un commutateur (54) électronique est couplé de façon à recevoir le signal de commande du microcontrôleur, et à couper l'alimentation électrique de la pompe en réponse celui-ci.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)