EP0779043A1

EP0779043A1 - Depilatory wax heating apparatus

Info

Publication number: EP0779043A1
Application number: EP96500161A
Authority: EP
Inventors: Enrique Cuervo Hernandez; Guillermo Cuervo Hernandez
Original assignee: Magic Dreams Cosmetica Infantil SL
Current assignee: Magic Dreams Cosmetica Infantil SL
Priority date: 1995-12-14
Filing date: 1996-12-12
Publication date: 1997-06-18
Also published as: UY24403A1; AR005079A1; MX9606336A; ES2110368B1; ES2110368A1

Abstract

A depilatory wax heating apparatus. Heating means (11) allow the ideal melting temperature for the wax contained in the applicators (6) to be attained. Said means consist of bars (12) connected to a conductor (13), said bars being made of an electric conducting material, designated PTC, serving as a heat controlling element.

The apparatus is applicable for heating depilatory wax application case and for thermally controlling the ideal melting temperature of the wax for an unlimited period of time.

Description

FIELD OF THE INVENTION

The present Patent of Invention relates to a depilatory wax heating apparatus that, in addition to the function for which it is designed, affords a number or advantages discussed hereinafter, and others that are inherent in its organisation and construction.

BACKGROUND OF THE INVENTION

Hair-removing methods consisting of applying layered hot wax and removing it once it has cooled down, thereby pulling out the hair, have been known from time immemorial.
The prior art also includes the existence of non-reusable solid state wax containing cases provided with a device for applying the wax in a sheet-like layer, said cases being stored in specific apparatus which include heating means that liquefy said wax in order that it may be suitably applied. Said heating means are devised to let off sufficient heat in order for the wax, which is solid at room temperature, to be liquefied, acquiring a suitable viscous state enabling it to flow through the dispensing means included in the application head, to be spread on the skin in a sheet-like layer.
The current apparatus designed to heat the cases aforesaid, of the kind including an application head, consist of an enclosure provided at its mouth with one or several guide-like openings, suiting the cross-section of the wax containing case. Now, a heating apparatus of the above kind can therefore house cases of differing sizes or capacities which are altogether heated through the heating means with which it is fitted.
The heating means of apparatus known heretofore consist of tubular housings leading to said openings, said housings being made of a metallic material which conveys the heat generated by wire heater sandwiched between pressure-sensitive aluminium plates. The electric circuit includes a thermostat designed to automatically control the ideal wax melting temperature rendering the wax suitable to be applied on the skin.
These heating means with which traditional heating apparatus are provided do not contribute to keeping said ideal application temperature stable, for the thermostat is not sufficiently sensitive in operation to prevent the temperature from falling to a level below the application temperature, whence further heat application time is required until the aforesaid optimum temperature is newly achieved.

SUMMARY OF THE INVENTION

The present Patent of Invention has been devised to overcome the drawbacks summarily mentioned in the foregoing section, common in the prior art, resorting to such end to means heating the solid wax contained in the application cases up to the viscous state melting temperature, which means, after said ideal application temperature is attained, provide the heat required to hold the same stable for an unlimited time, and therefore any of the application cases located in the heating apparatus is in optimum conditions to be used.
The said heating means are made of a material (PTC) that is connected to the mains and associated to the heat conveying metallic tubular housings where the wax applicators are located.
The PTC material serves as a heat controller, contributing whatever energy is required to maintain the scheduled heat, and concurrently controlling the same, making the use of a traditional thermostat unnecessary.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a perspective view of a depilatory wax application case heating apparatus.
Figure 2 is a cross-section of the apparatus, along II-II.
Figure 3 is a longitudinal section of the apparatus, along III-III, which figure shows an application case located in the relevant enclosure.
Figure 4 is a perspective of the heat conveying metallic housing where the wax applicators are located, which housing has heat generating and temperature stabilising means on its outer face.

DESCRIPTION OF A PREFERRED EMBODIMENT

In order to clearly show the nature and advantageous application of the heating apparatus subject of the invention, its structure will be described below with reference to the drawings which show a preferred embodiment for informative purposes and should therefore be construed in the broadest sense and not to limit the scope of the invention.
Figure 1 of the preferred embodiment shows an external perspective overview of the heating apparatus, which consists of a receptacle, generally designated -1-, which could be said to be prism-shaped, rectangular in plan and having rounded or semicircular ends, open at the top, a body -2- being coupled at its mouth which includes the electrical connections with the mains lead -3-, that has a plug -4- for it to be plugged into the mains. A plinth -2a- is formed on said body -2- provided with a rectangular opening through which a pilot light -14-signalling whether the apparatus is on, is visible.
The body -2- has a longitudinal furrow -5- at its base, with an opening -7- on its bottom that is perimetrically designed to snugly receive the section of one or several applicator cases, of the kind -6-. To this end, the said opening has purposely sized spaces -7a- and -7b- leading to a tubular housing -8- whose section is equivalent to the said opening -7-, which housing is made of heat conveying metallic plate and houses the full vertical length of the application cases -6-, save for their application head -6a-.
The unit described has a cover -9- shaped to match the body -1-.
The outer surface of the housing -8- has a clamp-10- to hold heat controlling and heating temperature stabilising means of the application cases, which means are designated -11- and comprise flat bars -12- connected to a conductor -13- and made of an electricity conducting material, known with the acronym PTC, which serves as a heat controlling member.
In accordance with the above, a first objective of the invention has been- devised in order that once the ideal melting temperature is achieved for the solid wax contained in the application cases, said temperature is successfully controlled and hence stabilised, thereby allowing the applicators to be kept in working conditions for as long as desired.
A second objective of the invention is designed to simplify the traditional heating means used heretofore in apparatus of this kind, eliminating the use of a heating wire or electrical resistor, plates or armouring for such resistor and a thermostat, with the consequent economic savings this entails, with a view to reducing product costs.

Claims

A depilatory wax heating apparatus, of the kind comprising a receptacle specifically structured to contain one or several wax application cases, the wax remaining in solid state at room temperature, which application cases take up a stable upright position when located in a tubular structure within said receptacle that is conformed to establish unit enclosures for such applicators, and which tubular structure is made of heat conveying metallic plate, characterised in that a clamp (10) is provided on the outer wall of the heat conveying structure (8) to hold heating means (11) thermally controlling the ideal wax melting temperature of the applicators (6), which keeps them operative for as long as desired.
A depilatory wax heating apparatus, as in claim 1, characterised in that the means (11) consist of bars (12) connected to a conductor (13) and made of an electric conducting material, known with the acronym PTC, serving as a heat controlling member.