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WO2008132108A2 - Appareil de chauffage d'aquarium réétalonnable - Google Patents

Appareil de chauffage d'aquarium réétalonnable Download PDF

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Publication number
WO2008132108A2
WO2008132108A2 PCT/EP2008/054910 EP2008054910W WO2008132108A2 WO 2008132108 A2 WO2008132108 A2 WO 2008132108A2 EP 2008054910 W EP2008054910 W EP 2008054910W WO 2008132108 A2 WO2008132108 A2 WO 2008132108A2
Authority
WO
WIPO (PCT)
Prior art keywords
recalibratable
rod
regulator
aquarium heater
temperature
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.)
Ceased
Application number
PCT/EP2008/054910
Other languages
English (en)
Other versions
WO2008132108A3 (fr
Inventor
Paolo Pettenon
Federico Carraro
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.)
Sicce SpA
Original Assignee
Sicce SpA
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 Sicce SpA filed Critical Sicce SpA
Publication of WO2008132108A2 publication Critical patent/WO2008132108A2/fr
Publication of WO2008132108A3 publication Critical patent/WO2008132108A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
    • A01K63/065—Heating or cooling devices

Definitions

  • the present invention relates to an adjustable aquarium heater.
  • Background art aquarium heaters are currently known which use as a heating element a resistor which, when crossed by an electric current, becomes warm due to the Joule effect.
  • Such heating element is contained in a containment body which is generally cylindrical and is suitable to keep it separate from the water of the aquarium.
  • a switch which is actuated by a bimetallic lamina which, by deforming depending on its temperature, closes or opens the switch.
  • said bimetallic lamina supports, at one end, one of the two contacts of the switch and has, at the other end, an elastically deformable bend in order to move the contact associated with the lamina apart or closer with respect to the other contact of the switch, which is associated with the containment body.
  • the lamina instead of having a bend, is connected to an elastically deformable supporting element, whose function is equivalent to the function of the bend.
  • the deformation of the bend or of the supporting element is imparted by a threaded piston coupled to a female-thread support provided in the containment body.
  • the piston By turning in the female thread, the piston moves longitudinally, deforming the bend or the supporting element.
  • the containment body is inserted in the tank of the aquarium at the end where the heating element is accommodated, while the other end, directed toward the outside of the tank, is provided with a knob which can be turned and which, by means of a transmission rod, turns the piston, thus adjusting the deformation of the bend or of the supporting element and as a direct consequence the closure or opening temperature of the circuit, i.e., the temperature set for the water of the aquarium.
  • a light-emitting element is connected to the power supply circuit of the heating element; said element is usually an LED, which is contained in said containment body and lights up when current flows in the circuit.
  • Other heaters are further provided with an indicator of the set temperature, which generally is a ring which is fixed to the containment body, is arranged circumferentially with respect to the knob and is graduated so as to provide a temperature scale.
  • the knob has a notch which indicates the set temperature on the graduated edge.
  • the containment body in order to allow the user to distinguish whether the light-emitting element is on or off, the containment body must be transparent or translucent at least partially, and further it must not be shielded from the user's view by other objects that are present in the tank.
  • the heater is often positioned in parts of the aquarium which are confined and awkward to reach.
  • Heater models are currently known which have glass containment bodies which are transparent but fragile, to the full detriment of safety, while models with unbreakable bodies are made of metal or non-transparent plastic material and therefore do not have the light-emitting element, since it cannot be seen from outside, and therefore they do not allow an immediate verification of the state of activity of the heater.
  • the operating conditions of the heater on the part of the user usually differ greatly from the calibration conditions, since a very large number of parameters, such as the capacity of the aquarium, the water circulation flows and the heat dispersion of the tank, are involved, and therefore the user generally does not find a match between the temperature set by means of the heater and the actual temperature of the water, which can be estimated for example with a thermometer immersed in the aquarium.
  • the need is therefore felt for a recalibratable aquarium heater which is reliable in its temperature setting and allows immediate and easy verification of its state of activity or inactivity. Disclosure of the Invention
  • the aim of the present invention is to obviate the above mentioned drawbacks and meet this requirement, by providing a recalibratable aquarium heater whose activity status can be verified easily.
  • an object of the invention is to provide an aquarium heater with reliable adjustment of the temperature of the water.
  • Another object of the invention is to provide a recalibratable aquarium heater which is structurally simple and easy to use and can be manufactured at relatively low costs.
  • a recalibratable aquarium heater which comprises a containment body for a Joule-effect heating element, which is connected to an electric circuit for connection to power supply means, by means of a switch which is actuated by a temperature-sensitive actuator which is suitable to switch said switch for closing and opening, at a predefined temperature which can be set by the user by way of adjustment means which comprise an indicator of the set temperature, characterized in that it comprises means for the repeatable calibration, on the user's command, of said set temperature indicator.
  • Figure 1 is a perspective view of a recalibratable aquarium heater according to the invention.
  • Figure 2 is an enlarged-scale perspective view of the recalibratable aquarium heater according to the invention.
  • Figure 3 is a perspective view of the interior of the recalibratable aquarium heater according to the invention
  • Figure 4 is an enlarged-scale side elevation view of a detail of the interior of the recalibratable aquarium heater according to the invention
  • Figure 5 is a diagram of the electric circuit of the recalibratable aquarium heater according to the invention.
  • the reference numeral 10 generally designates a recalibratable aquarium heater according to the invention, which comprises a containment body 1 1 for a heating element 12, conveniently an electric resistor which can be heated by Joule effect, which is connected to an electric circuit 13 for connection to power supply means, for example cables 14 for connection to the electrical mains.
  • the electric circuit 13 can be closed and opened by an actuator at a predefined temperature, which can be set by the user by way of adjustment means 15.
  • such actuator comprises a bimetallic lamina 16, with one end connected in a cantilever arrangement to a supporting element 17 which is associated with the containment body 11.
  • the bimetallic lamina 16 curves longitudinally, as its temperature varies, in order to pass from a first configuration, in which the electric circuit is open, to a second configuration, in which the electric circuit is closed, and vice versa.
  • the electric circuit 13 can be opened and closed respectively by the separation and engagement by abutment of two contacts 18a and 18b, the first one being associated with a movable element 19 and the second one being fixed to the electric circuit 13.
  • the bimetallic lamina 16 is conveniently connected to the movable element 19 of the electric circuit 13 and therefore, at the temperature set by the user, the bimetallic lamina 16 has the curvature required for the movable element 19 to disconnect or arrange in abutment the contact 18a with respect to the contact 18b, when the bimetallic lamina 16 has respectively been heated or cooled enough to have reached such set temperature.
  • the deformation of the bimetallic lamina 16 at which the electric circuit is opened or closed is set by the user by way of the adjustment means 15, which by moving and/or curving the bimetallic lamina 16 alter the curving thereof required for the movable element 19 to disconnect or abut the contact 18a with respect to the contact 18b.
  • the adjustment means 15 preferably comprise a regulator 20, which can be rotated, a rod 21, which also can be rotated, by means of the regulator 20, and is connected to a piston 22 which acts on a rocker 23 which is pivoted to the containment body 1 1 and rests on the bimetallic lamina 16, conveniently proximate to the supporting element 17.
  • the adjustment means 15 also comprise an indicator 24 of the set temperature, which advantageously comprises a ring 25 which is graduated according to a scale of the temperature to be set and is associated with the containment body 1 1, and an index, for example a recess 26, which is formed on the regulator 20 at the ring 25.
  • the heater 10 comprises means 27 for the repeatable calibration, on command of the user, of the indicator 24 of the set temperature.
  • the regulator 20 is connected coaxially to one end of the rod 21 by way of the calibration means 27, so that they can be activated for the relative rotation of the regulator 20 with respect to the rod 21 and can be deactivated for their jointly connected rotation.
  • the calibration means 27 comprise an annular flange 28 which is associated with the rod 21 and is provided with a ring 29 which is provided with internal teeth and can engage and disengage, on the user's command, a toothed element 30 which is connected to the regulator 20 and to a button 31 which can be moved by the user, in contrast with elastic means, for the disengagement of the toothed element 30 from the ring 29.
  • the toothed element 30 and the ring 29 can be engaged and disengaged respectively to couple the rotation of the regulator 20 to the rotation of the rod 21 and to uncouple said rotation of the regulator 20 from the rotation o f the rod 21.
  • the regulator 20 can thus be turned without the rod 21 rotating in turn, and in this manner the indicator 24 can be calibrated by aligning the index, i.e., the recess 26, with the mark of the ring 25 that indicates the calibration temperature at which the electric circuit 13 is opened or closed due to deformation of the bimetallic lamina 16.
  • the electric circuit 13 further comprises a light-emitting element 32, which is contained advantageously in the containment body 11 and lights up when current flows in the electric circuit 13.
  • the adjustment means 15 comprise at least one light guide, advantageously the rod 21 made of a material which is permeable to light and faces, with a first surface portion
  • the rod 21 faces the outside of the heater 10 at the regulator 20 preferably by protruding from it with its second surface portion 34.
  • the operation of the recalibratable aquarium heater according to the invention is as follows.
  • the user immerses the heater in the tank of the aquarium, at least for the portion that contains the heating element 12, and sets its temperature by aligning the recess 26 of the regulator 20 with the mark of the ring 25 that corresponds to the temperature at which he/she wishes the water of the aquarium to be kept.
  • the rotation of the regulator 20 is matched by the rotation of the rod
  • the heating element 12 in fact emits heat, which warms the water of the aquarium and the bimetallic lamina 16.
  • the bimetallic lamina 16 curves as its temperature varies, and therefore, when its temperature causes a deformation thereof such that the movable element 19 separates the contact 18a from the contact 18b, the flow of current through the heating element 12 ceases.
  • the curving of the lamina as its temperature decreases brings it to the deformation required for the movable element 19 to bring into abutment the contact 18a on the contact 18b, closing the electric circuit 13 that supplies power to the heating element 12.
  • the light emitted by the light-emitting element 32 when the electric circuit 13 is closed, passes through the rod 21 , which is permeable to light, making it luminous, so that it emits light outside the heater 10 at its second surface portion 34.
  • the state of activity of the heater is evident to the user.
  • the user can calibrate the heater 10 by pressing the button 31 so as to be able to turn the regulator 20 with respect to the rod 21 in order to align its recess 26 with the marking of the ring 25 that bears the correct temperature.
  • the invention achieves the intended aim and objects, providing a recalibratable aquarium heater whose state of activity can be verified easily, since part of the adjustment knob is lit when the heater is active. Further, a recalibratable aquarium heater according to the invention, by being recalibratable whenever the user deems this appropriate, allows a much more reliable adjustment of the temperature of the water than currently known heaters.
  • the materials used may be any according to requirements and to the state of the art.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention porte sur un appareil de chauffage d'aquarium réétalonnable (10), qui comprend le corps de retenue (11) d'un élément chauffant par effet Joule (12), connecté à un circuit électrique (13) le reliant à une alimentation électrique, et qui peut être fermé et ouvert par un déclencheur à une température prédéterminée fixée par l'utilisateur à l'aide d'un moyen de réglage (15) muni d'un indicateur (24) de la température choisie. Le circuit comprend en outre une DEL (32) qui s'alume quand du courant circule dans le circuit électrique (13). L'élément chauffant (10) comprendun moyen (27) de réétlonnage par l'utilisateur de l'indicateur (24) de la température choisie. Le moyen de réglage (15) comporte en outre au moins un guide de lumière dont une première partie (33) de la surface est face à la DEL (32) et dont une deuxième partie (34) de la surface est face à l'extérieur du corps de retenue (11), pour permettre de voir à distance la lumière émise par la DEL (32).
PCT/EP2008/054910 2007-04-30 2008-04-23 Appareil de chauffage d'aquarium réétalonnable Ceased WO2008132108A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20070160 ITPD20070160A1 (it) 2007-04-30 2007-04-30 Riscaldatore per acquari ritarabile
ITPD2007A000160 2007-04-30

Publications (2)

Publication Number Publication Date
WO2008132108A2 true WO2008132108A2 (fr) 2008-11-06
WO2008132108A3 WO2008132108A3 (fr) 2009-01-22

Family

ID=39730617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054910 Ceased WO2008132108A2 (fr) 2007-04-30 2008-04-23 Appareil de chauffage d'aquarium réétalonnable

Country Status (2)

Country Link
IT (1) ITPD20070160A1 (fr)
WO (1) WO2008132108A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007067A1 (fr) * 2011-07-14 2013-01-17 Yu Feng Capteur de température de chauffage doté d'un indicateur d'état de fonctionnement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107289A (en) * 1960-01-22 1963-10-15 Aquariums Inc Thermostatically-controlled aquarium heater
IT211553Z2 (it) * 1985-11-08 1989-03-06 Strada Antonio Dispositivo termoregolatore ad immersione, particolarmente per acquari.
IT209457Z2 (it) * 1986-05-06 1988-10-10 Aksoll S R L Riscaldatore elettrico termostatico particolarmente per acquari.
ITVI20020086A1 (it) * 2002-05-07 2003-11-07 Eden Srl Riscaldatore regolabile per acquari

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007067A1 (fr) * 2011-07-14 2013-01-17 Yu Feng Capteur de température de chauffage doté d'un indicateur d'état de fonctionnement

Also Published As

Publication number Publication date
WO2008132108A3 (fr) 2009-01-22
ITPD20070160A1 (it) 2008-11-01

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