WO2003013306A1 - Equipement de stockage thermique pour miroirs - Google Patents

Equipement de stockage thermique pour miroirs Download PDF

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Publication number
WO2003013306A1
WO2003013306A1 PCT/AU2002/000942 AU0200942W WO03013306A1 WO 2003013306 A1 WO2003013306 A1 WO 2003013306A1 AU 0200942 W AU0200942 W AU 0200942W WO 03013306 A1 WO03013306 A1 WO 03013306A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
mirror
reservoir
mirrors
equipment
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/AU2002/000942
Other languages
English (en)
Inventor
Miles Blackwood
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP02744930A priority Critical patent/EP1411798A4/fr
Publication of WO2003013306A1 publication Critical patent/WO2003013306A1/fr
Priority to US10/766,397 priority patent/US7249858B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
    • A47G1/02—Mirrors used as equipment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/181—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
    • G02B7/1815—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation with cooling or heating systems

Definitions

  • This invention relates to heated mirrors.
  • Mirrors for use in steamy atmospheres where condensation affects visibility can be warmed above condensation temperature by applying hot water that is readily available from the shower or the hand basin.
  • Mirrors are known that employ a reservoir behind the mirror surface for filling with hot water.
  • these known mirrors are bulky and lack utility because the reservoir is difficult to fill.
  • This invention is more particularly concerned with mirror equipment of the type that is manipulated by hand at each use in order to apply hot water to the mirror.
  • An example of such equipment is known from patent specification U.S. Pat. No. 4,655,559.
  • the mirror is provided on the front of a reservoir, from the bottom of which a pin projects.
  • the pin fits into a socket in a bracket, which is connected by a ball and a socket joint to a sucker for attachment to a wall.
  • the mirrored reservoir can be removed for emptying and recharging with hot water to reduce the tendency of the mirror to fog-up.
  • 4,655,559 requires the user to remove the mirror from its support then fill the reservoir by holding its open end in the shower water flow, or by immersing it in a hand basin or the like.
  • the reservoir must be emptied before reuse.
  • the water entry area must be large enough to allow water to flow easily into the cavity in a reasonable time. Therefore, the water volume in the single cavity must be greater than is required for heating the mirror surface. This difficulty arises because the water attempts to enter the cavity from a generally restricted entrance aperture at one end of the cavity, but it is prevented from entering by the air trying to expel from the cavity.
  • the reservoir opening when filled from a shower spray the reservoir opening must be unduly large in order to catch the dispersed drops of water.
  • the water When emptying the cavity, the water is hampered in its egress by a combination of capillary action and the blocking effect of air flowing into the cavity. If the water entry point is made larger to achieve a convenient filling rate of the reservoir, the whole device must be made correspondingly larger.
  • the construction When constructing a portable heated mirror device it is desirable that the construction be as slimline as practicable, so that the equipment may be easily stored in a shaving kit bag for example. Also, it is desirable that the equipment be a light as practicable when charged with water so that sucker type support devices are more effective.
  • a heated mirror of the general type mentioned above is characterised in that the mirror is provided with features disposed behind the mirrored surface for gathering water, and structures disposed behind the mirrored surface for retaining water, wherein the water gathering features are several and are adjacent at least part of the surface area of the back of the mirror, and wherein the water retaining structures are several, and extend outward from adjacent the mirrored surface to form a generally open compartment such that the compartment so formed may be filled with water, which structures cover at least part of the back of the mirror.
  • the mirror is provided with an absorbent material disposed behind the mirrored surface wherein the material may absorb heated water so that the heat in the water can be transferred to the body of the mirror over time.
  • the absorbent material may absorb heated water so that the heat in the water can be transferred to the body of the mirror over time.
  • the mirror material may be provided with cavities over the surface area of the mirror so that these can adsorb or be filled with heated water so that the heat in the water can be transferred to the mirror body over time.
  • a water heated mirror that includes a water reservoir may be made more convenient for the user due to the quickness of the filling and emptying of the water reservoir.
  • the user does not have to present a filling aperture precisely to the water source but merely waves the larger collecting surface of the present invention under the general water flow.
  • the mirror may be constructed to be less bulky, lighter in weight, especially when charged with water, and more portable, for fitting into a shaving kit bag for example.
  • FIG. 1 is a sectioned view illustrating difficulties of filling water reservoirs in shaving mirrors.
  • FIG. 2 is a sectioned view of an embodiment with compartmented water gathering and retaining features on the back vertical surface of the mirror.
  • FIG. 3 is an oblique view of a second embodiment with cellular water gathering and retaining structures on the rear vertical surface of the mirror and incorporates a magnified section.
  • FIG.4 is a cross- sectional view of a mirror material containing cavities for filling with water
  • FIG. 1 The problems experienced when filling water reservoirs, in particular those associated with water-heated mirrors of the prior art, are demonstrated in FIG. 1.
  • the size of the mirror [1] may vary, but at least 150mm of mirror height and 100mm of width is required to efficiently accommodate the facial reflection when shaving or removing make-up for instance.
  • the function of the equipment dictates that the height and width of the reservoir [2] must be approximately proportional to those shown in FIG. 1.
  • the effective area available for water 15] gathering is the opening [3] where the water flow F4] enters the water storage reservoir [2].
  • FIG 2A shows equipment of the present invention where water [5] gathering features [6] and cellular water retaining structures [7] cover the back of the mirror [1j.
  • the effective area available for water gathering is the area [3AJ where water flow [4] enters the water storage structures [7] over a major portion of the mirror back.
  • the water gathering features [6] are comprised of the spaces between the louvre-like water retaining structures [7].
  • the cells bounded by the structures [7] are filled almost instantly by the water flow [4] because of their generally open aspect.
  • FIG. 3 shows a cellular configuration of water gathering and storage where a large surface area for water gathering is provided by a sponge like material [8] adjacent the back vertical surface of the mirror [1].
  • the cellular spaces [9] are smaller than the compartments delineated by the water volumes [5] shown in FIG. 2, but they both employ the principle of retaining water on the vertical surface of the mirror assembly and thus provide a substantially larger surface area for ingress of water [4] into the storage means relative to the storage capacity.
  • the sponge material [8] is charged in much the same way as the compartments [7] shown in FIG.2.
  • the mirror body [1] is provided with cavities [10] on at least one vertical face of the mirror [1] in quantities that in combination present a large surface area for filling relative the surface area of the mirror.
  • These holes or cavities may be relatively large or microscopic. Microscopic holes may be placed partially through the mirror body or right through the mirror body and may be applied in a density that does not unduly affect the reflective qualities of the mirror.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

La présente invention concerne des miroirs utilisables dans des atmosphères très humides où la condensation affectent la visibilité, par exemple dans les douches et les salles de bains, qui peuvent être réchauffés au-dessus de la température de condensation par l'application d'eau chaude facilement disponible à partir de la douche ou du lavabo. La présente invention a trait à un miroir intégrant des éléments compacts permettant la constitution et le stockage plus rapide et plus efficace d'un réservoir d'eau réchauffée suffisant pour le chauffage d'un miroir à raser à une température de désembuage. Les éléments sont disposés sur les faces verticales du miroir permettant la pénétration de l'eau dans le réservoir sur une zone de large surface par rapport à la dimension du miroir.
PCT/AU2002/000942 2001-08-03 2002-07-12 Equipement de stockage thermique pour miroirs Ceased WO2003013306A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02744930A EP1411798A4 (fr) 2001-08-03 2002-07-12 Equipement de stockage thermique pour miroirs
US10/766,397 US7249858B2 (en) 2002-03-08 2004-01-23 Heat storage equipment for mirrors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR6782 2001-08-03
AUPR6782A AUPR678201A0 (en) 2001-08-03 2001-08-03 Heat storage equipment for mirrors

Publications (1)

Publication Number Publication Date
WO2003013306A1 true WO2003013306A1 (fr) 2003-02-20

Family

ID=3830738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2002/000942 Ceased WO2003013306A1 (fr) 2001-08-03 2002-07-12 Equipement de stockage thermique pour miroirs

Country Status (3)

Country Link
EP (1) EP1411798A4 (fr)
AU (1) AUPR678201A0 (fr)
WO (1) WO2003013306A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755411B2 (fr) * 1975-07-08 1982-11-24
JPS61286803A (ja) * 1985-06-13 1986-12-17 Tokai Rika Co Ltd 防曇鏡
US4655559A (en) 1985-10-28 1987-04-07 Odell Daniel R Condensate-free grooming mirror
US4832475A (en) * 1988-01-25 1989-05-23 Daniels John J Non-fogging shower mirror
GB2221839A (en) * 1988-08-17 1990-02-21 Target Inc A Fog resistant mirror
GB2341547A (en) * 1998-09-21 2000-03-22 Robert John Davis Portable condensation-free mirror

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110529B (en) * 1981-07-18 1985-05-01 Dennis Norman Sporle Non-misting mirror
JPH1033332A (ja) * 1996-07-29 1998-02-10 Kannami Glass:Kk 防曇ミラー

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5755411B2 (fr) * 1975-07-08 1982-11-24
JPS61286803A (ja) * 1985-06-13 1986-12-17 Tokai Rika Co Ltd 防曇鏡
US4655559A (en) 1985-10-28 1987-04-07 Odell Daniel R Condensate-free grooming mirror
US4832475A (en) * 1988-01-25 1989-05-23 Daniels John J Non-fogging shower mirror
GB2221839A (en) * 1988-08-17 1990-02-21 Target Inc A Fog resistant mirror
GB2341547A (en) * 1998-09-21 2000-03-22 Robert John Davis Portable condensation-free mirror

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198250, Derwent World Patents Index; Class A32, AN 1982-08571J/50, XP008100860 *
DATABASE WPI Week 198705, Derwent World Patents Index; Class P81, AN 1987-031805, XP008099739 *
See also references of EP1411798A4

Also Published As

Publication number Publication date
EP1411798A1 (fr) 2004-04-28
EP1411798A4 (fr) 2009-06-24
AUPR678201A0 (en) 2001-08-23

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