IL29752A - Gas-fuelled lighter - Google Patents

Description

LIGHTER i This invention relates to a lighte which comprises a resilient throttling which serves for regulating the gas stream and the height of the flame and which is adapted to be compressed by an adjusting is movable relative to the throttling In the known gas lighters of this the adjusting member consists of a As a small displacement is sufficient to compress the throttling screw must have a very small lead and for this reason can be manufactured only with stops must operate with these helical adjusting members to prevent a complete unscrewing of the screws because this would result in a sudden outflow of i It is an object of the invention to avoid the disadvantages of the known This is accomplished in that the adjusting member a mating member which cooperates with and is adjustable relative to the adjusting member is provided with at least one cam track which is inclined with respect to a plane that is normal to the direction of movement of the adjusting member so that a relative rotation of the adjusting member and mating member will cause a movement of the adjusting member toward or away from the throttling The lighter according to the invention can be adjusted to compress the throttling member to the desired degree much more easily than the known screws because the inclination of the cam track can be selected as No stops are required to limit the adjusting The provision of a cam track which is itself has proved particularly In this case the adjusting member can always be rotated in one direction to adjust the height of the flame between a maximum and a The invention will now be described with reference two illustrative embodiments shown by way of example on the accompanying although the invention is not restricted to said 1 is a sectional view taken through the top part of a gas tank of one embodimen 2 is a similar view showing a different 3 and show details of the lighter according to 1 shows a gas tank which can be inserted into a conventional which is provided with an igniting has a recess 2 at its top An opening 3 is formed in the bottom of said recess and connects the interior of the recess to the tank space which contains A porous throttling member 5 of is disposed above the bottom of the recess and is compressed by an adjusting member In the example shown in the the adjusting member consists of a circular which has cut off obliquely and is provided with anose by which the adjusting member is guided in a track which is provided at the wall of the recess A mating member 9 is also cylindrical and is rotatably mounted recess The matin 9 axially held by a split locking ring and sealed at its by an The mating member 9 has an axial duct through which the gas can flow out as soon as a cap of the lighter is lifted The mating member 9 is provided with a nose 13 at that end which faces the adjusting member The nose 13 rests on the obliquely portion of the adjusting That obliquely portion forms a cam which is inclined to a plane that is normal to the of movement of the adjusting That plane is indicated by the double A rotation imparted to the mating member 9 will thus change the pressure which is exerted by the nose 13 on the adjusting member 6 so that the compression of the throttling member 5 is changed and more or less gas can flow through the bore the throttling member 5 and the duct In the embodiment shown by way of example in 2 to the gas tank 20 is provided at its top edge with extensions 22 and which are on different levels and spaced around the periphery of the To illustrate this a development of a portion of that top edge into a plane is shown in A mating member 24 three noses which are in engagement with the sets of extensions 22 or At its end opposite to the noses the mating member 24 is provided with two cam tracks 26 and which are inclined relative to each This design is distinctly apparent from where the mating member is shown An adjusting member 28 is rotatably mounted in the mating member 24 and has two diametrically opposite extensions 29 and which have different The extension 29 lies on the inner cam track 26 and the extension 30 lies on the concentric outer cam track A valve stem 31 is guided in the adjusting member A valve member 32 having a serrated periphery is inserted in the valve stem which is urged by a spring 33 against a cup member 34 so that the valve member in the closed position of the gas valve closes the opening 35 of member A throttling member 36 of porous material is disposed inside the cup member The member 34 contains also a rubber plug which is serrated at its periphery and bears on a cup which is formed with openings The cup 39 filled with absorbent material such as and bears on a disc which is serrated at its The disc 41 rests on beads 42 formed on the gas tank A ring 43 bears at one end on the cup 39 and at the other end on a shoulder 44 of the gas tank The ring 43 is formed on its and outside peripheries with grooves for receiving sealing rings 45 and The illustrated device has the following mode of The liquefied gas contained in the gas tank 20 contacts the felt 40 whenever the tank is tilted so that the felt absorbs part of the liquefied The member 28 is provided at its upper end with teeth A lever 48 shown in dotted lines in 2 is provided in the lighter and serves to lift the valve When it is desired to ignite the the lever 48 is moved in known manner in the direction of the arrow When the stem 31 has been the gas flows over the periphery of the 37 and through the throttling member and the opening further past the valve member 32 and outwardly through the hollow valve The flow rate and with it the height of the flame will depend on the degree of compression of the throttling member The compression may be adjusted by the manufacturer by a rotation of the mating member 24 to such an extent that its noses 25 rest on extensions 21 or 22 or the design shown in the noses interengage with the adjust the height of the the gas tank 20 is rotated relative to the When the lever 48 is it enters the teeth 47 so that the adjusting member is connected to the lighter by the lever The mating member 24 rotates in unison with the tank 20 so that the cam tracks 27 slide on the respective extensions 30 and the part 34 of the adjusting member 28 is urged more or less strongly against the throttling Because each cam track 27 is closed in the gas tank 20 can be constantly rotated in one The provision of two cam tracks which have the same inclination relative to a center plane which is normal to the axis of the gas tank ensures that the adjusting member is always guided along a straight line so that the axes of the adjusting member and mating member are aligned in all insufficientOCRQuality

Claims (7)

WHAT IS CLAIMED IS:

1. A gas-fAelled lighter which comprises a resilient

throttling member, which serves for regulating the gas

stream and the height of the flame and which is adapted

to be compressed by an adjusting member, which is movable relative to the throttling member \ characterized in that the adjusting member or a mating member which cooperates with and is adjustable relative to the adjusting member, or both these members is or are provided with at least one cam track, which is inclined with respect to a plane that is normal to the direction of movement of the adjusting member so that a relative rotation o the adjusting member and mating member will cause a movement of the adjusting member toward or away from the throttling member.

2. A gas-fuelled lighter as claimed in Claim 1, charaterized in that the cam track is a closed loop.

3. A gas-fuelled lighter as claimed in Claim 1 or 2, characterized in that the adjusting member or the mating member is

diametrically opposite extensions of different length, which rest on respective ones of the cam tracks.

5. A gas-fuelled lighter as clai¾ in any of claims 1 to 4, characterized in that the cam tracks are designed for a fine adjustment of the gas flow only and either the

adjusting member or the mating member is adapted to be

supported on extensions of different height for a coarse adjustment*

6. A gas-fuelled Hghter as claimed in Claim 5, characterized in that the mating body is formed w th two oppositely inclined,

•■•)V

concentric cam tracks and annularly surrounds the adjusting member and is formed with at least two noses at the end

facing away from the cam tracks, said noses being supported on extensions secured t> the body of the lighter of the gas tank and disposed on different levels.

7. A gas-fuelled lighter, substantially as described

hereinbefore with reference

drawings.

Attorneys for App icants