Combustion – Correlation of fuel or power supply with component movements...
Patent
1997-07-23
1999-03-23
Dority, Carroll B.
Combustion
Correlation of fuel or power supply with component movements...
431255, F23D 1136
Patent
active
058850694
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a lighter which is actuated by a push-control means which can be moved in a longitudinal direction, and resists use by children. This type of activation is found, for example, in piezoelectric lighters, and also with a lighting mechanism of a kind comprising a pyrophoric stone and a knurling wheel. By pressing on a push-control, a user of this lighter simultaneously controls production of a spark and opening of a valve through which gas escapes, thereby enabling formation of a flame.
This type of lighter is very simple to use as it is only necessary to press on a push-control to create a flame. Attempts are therefore being made to make it more difficult to use such lighters so that children of less than five years in age cannot produce a flame with them.
It is known for lighters of this type, resisting use by children, to be produced.
In these lighters, there are means of neutralising the associated lighting mechanism, these means being mobile between an active position of neutralisation in which they prevent actuation of the lighting mechanism, and a non-active position in which they allow this actuation, it being possible for a user to manually move these mobile means from their active position of neutralisation to their non-active position.
This type of lighter is particularly known from a German utility model 88 02 582.9. However, in this lighter, neutralisation means concerned are not implemented to be automatically returned to an active position of neutralisation after actuation of a lighting mechanism concerned.
This return into an active position can therefore only be obtained by their operation in a reverse direction by a user.
It is easy to imagine that merely forgetting this latter operation completely negates advantages associated with presence of neutralisation means.
Document WO 90/12254 shows a gas-lighter with a lighting mechanism comprising means of controlling opening of a burner valve and means of producing sparks. In this lighter with a lighting mechanism, there are associated means of neutralising this mechanism which are mobile between an active position of neutralisation of a lighting mechanism concerned and a non-active position, these neutralisation means being manually movable, by a user, from their active position to their non-active position. Means of neutralising lighting are normally kept in a neutralising position and are, moreover, implemented to be automatically returned to a neutralising position, after actuation of a lighting mechanism concerned.
Although fully satisfactory concerning its functioning, a lighter in accordance with a latter document has a drawback of requiring presence of supplementary parts, making its assembly more complex and increasing, by a substantial extent, its break-even-point.
To overcome these drawbacks, a French patent FR 2 675 885 provides a lighter in which a control member is mounted such that it can slide and is provided with a skirt. An elastically deformable tongue is cut into this skirt such that, in an area of its free rim, there is an abutment face normally opposite a counter-abutment surface which is part of the body of the lighter concerned, this tongue being elastically and transversally movable such that its abutment face is brought into a non-active position in relation to a counter-abutment surface of the said body and therefore allowing pressing down of an actuating section of the control member in the direction of its lighting operation.
This lighter has the drawback of having to first act on a said tongue, and then on a control member, in order for a flame to be obtained. It is therefore necessary to act at two points to use a lighter concerned.
The present invention is therefore aimed at providing a lighter which can be used by an adult, yet which is difficult for a child to use, particularly a child of less than five years of age. Another aim is to supply an impregnable safety-system, that is, one held in a neutralisation position. In addition, unlocking is to occur at the same point as lighting
REFERENCES:
patent: 5145358 (1992-09-01), Shike et al.
patent: 5228849 (1993-07-01), Frigiere
patent: 5462432 (1995-10-01), Kim
Cricket S.A.
Dority Carroll B.
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