DE2355380A1 - CONTROL DEVICE FOR AEROSOL SPRAY CANS - Google Patents

Description

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THOMAS JOHN SMRT
4N 671, Route 59
Bartlett, Illinois 60105 / USA

Actuator for aerosol spray cans

This invention relates to aerosol spray cans and is directed in particular to an actuator for aerosol spray cans, the contents of which are directed downwards Can is sprayed.

The use of aerosol cans to spray Marking material on pavement, sidewalks, crashes and other surfaces is becoming increasingly common practice. Usually an aerosol spray can consists of a cylindrical body and one in the top of the can attached valve, Das.Ventil has a valve stem

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on, which opens the valve when it moves; on the valve stem a spray nozzle is attached. Most aerosol cans contain a riser tube that runs from the valve up to the bottom of the can so that the marking material in the can with the can held upright with the help of the propellant is expelled through the riser pipe.

A can with a riser pipe is used for spraying horizontal Uncomfortable surfaces. The box must be held at an incline upwards in relation to the plane so that the Marking material covers the lower part of the riser pipe and pressed through the riser tube by means of the propellant will .. This means that the marking sib at e-rial on the The surface is sprayed at an angle that reduces the accuracy or control of the spray; Besides that The spray nozzle is kept above the surface at a distance that causes the spray material to be blown away is eased by the wind before it can reach the surface. The .necessity, the can when spraying Holding it up at an angle makes spraying uncomfortable and tiring, especially when a large number of markings are to be made in different places. The man at the helm has to crouch or kneel in order to to hold the can at an angle upwards and still use it relatively bring it close to the surface; the constant stooping and stretching at every parking spot can be very getting tiresome. Simply bending over from the hip will not bring the can close enough to the surface.

The aerosol can provided with a valve according to the invention has no riser pipe, so that the contents can be sprayed with the can pointing downwards. The valve opens whenever it is moved sideways and the actuator trigger can be easily operated with a

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Press your finger to move the valve when the can is pointing downwards. Since the can can be used pointing downwards, the Beaiemrogsmsnn does not need to be in an uncomfortable position to spray: it only has to bend forward a little from the hip. The side opening in the can lid releases the actuation trigger. If the can is not in use, the lid can be advertised rotated so that its side wall protects the trigger.

Fig. 1 The drawing shows a "bent apart" representation the aerobic spray can according to the invention;

Fig. 2 is a partial section through the top of the can and the operating mechanism;

Fig. 3- is a view similar to Fig. 2 showing the actuation of the valve shows;

Fig. 4 is a partially sectioned plan view according to FIG. 2; and in

5 shows a section through the actuating device without a spray nozzle along the line 5-5 in FIG. 4.

The reference numeral 10 denotes a conventional aerosol spray can with a cylindrical body 11 and a domed upper part 12. The upper part has a central opening which is closed by a valve device 13. The valve device contains a valve device closure 14, which is crimped over the edges of the upper part opening, so that a gas-tight closure is created. The valve stem 15 tears ιατ-r a known aerosol valve in the Ventileir> direction £: join.

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The valve is opened by a sideways movement of the valve stem, ie transversely to the longitudinal axis of the can. The can contains marking material such as paint and a common aerosol propellant such as a mixture of isobutane and propane. The marking material is heavier than the propellant and is located on the bottom of the can when the can is upright. The propellant is located above it. The valve device does not contain a riser pipe, which usually extends downward from the valve to the bottom of the can. Therefore, the Karkierungsrnaterial is instead sprayed through the propellant from the downwardly from dev upright can.

The valve is opened by the actuating device as desired, or actuated by the actuating device 16, which contains an associated actuating device 17 and a can lid 18. The actuating device consists of a substantially cylindrical spray nozzle part 19 which is provided with a central bore 20, which has three parts each of reduced diameter. A first or connecting part 21 is dimensioned such that it receives the valve stem 15 so tightly that the actuating device will be held in place by frictional interference. An intermediate part 22 of reduced diameter prevents the shaft from being inserted too far into the central bore 20; an end portion 23 of small diameter defines the spray opening for the marking material.

The actuator also includes a trigger 24 extending outwardly from the spray nozzle portion and an outer one Has finger part 25 and an intermediate part 26. The finger portion 25 extends over a 90 arc and contains one curved downwards and upwards or gev / oiled Viand 27 that are pressed with a finger kp.nn and the

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provided with the above curved ribs 28a und.radial protruding serrations 28b is _t in order to avoid slipping "The intermediate part includes a flat, in 'substantially sefctorförraiges upper part 29', the circularly extending" outwardly from the Sprühdüsenoberteil to the tip of the curved ¥ and 27 _r and three radius-shaped ribs 30.

The can lid 18 consists of a cylindrical side wall 32 and a flat top wall 33. The side wall is provided with a side opening 34 and the top wall has the opening 35 directly above the spray nozzle. The lower corner of the side wall of the lid ends in a curved edge :} 6 _f which can snap into the groove37 ^ it dome-shaped upper part 12 of the can.

The groove 37 is curved in cross section and forms something more than a semicircle, so dai? the locked curved one Edge 36 is held therein. If desired * can the can lid of. the can by applying an upward directed force can be removed, which is sufficient to remove the curved Slightly squeeze the edge together so that it comes out of the Groove can be leaked. When the edge is in the groove. so the can lid can be turned around the can: in spite of that the groove holds the edge in any desired way through the friction Position.

When the can contents are to be sprayed, the lid is twisted so that the side opening 34 comes to lie opposite the outer finger part 25 of the trigger. The trigger ends just inside the side wall of the lid and the finger portion is conveniently accessible when released through the side opening. The can is directed downwards towards the surface to be sprayed and the operator only pushes his figer through the opening 34 mid beta -

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takes the trigger. When the finger part 25 of the trigger against the top of the can, as shown in Fig. 3, is pressed, the actuator can connect the valve stem pivot in the valve and the lateral movement or pivoting of the valve stem opens the valve, so that the contents of the can, as indicated by "S", through the nozzle sprays out. Although the can is drawn upright in Figure 3, the can is of course not with one Provided riser pipe and the marking material is only sprayed when the can is pointing downwards.

The can can be comfortably held in one hand, with the Index finger reaches through the side opening and pulls the trigger. Since the can is operated pointing downwards, the operator needs only a little help © to bend »to move the nozzle into the desired spray position Bring surface. The operator can therefore quickly assign a large number of markings to different! Places without Spray discomfort and fatigue.

The lower edge of the curved wall 27 has essentially the same curvature as the adjacent part of the dome-shaped upper part 12 and, in conjunction with the dome-shaped upper part, serves to avoid excessive movement of the actuating device and the nozzle. A überraässige movement of the spray nozzle 19 could affect the accuracy of the mark _s could cause the Sprühinaterial meets the lid of the can and does not spray through the box, and could be the connection between the valve stem and valve Übermaßsig burden.

When the can for a long time is not used, the Bediemtngsmann can prevent the inadvertent operation of the valve by rotating the can lid 18, thereby oils Geiteriöffining 34 voia Fi! Igei ^v part of Ausläsers .. Sine is moved away rotation of the lid urn only 90 ° brings, for example one

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uninterrupted part of the side wall opposite the finger part. The maximum opening expansion thus has an angle of about 90 °. The can lid is held in a non-spray-ready position by friction until the can is again should be used. Then only the can lid has to be rotated so that the side opening releases the trigger again releases. If the can lid is in a position not ready for spraying, the can can be in the pocket, in the tool container etc. can be transported without risk of inadvertent spraying of the contents.

According to Fig..2, the trigger is inside the side wall of the can lid. Even when the lid is in the ready to spray Unintentional actuation of the valve is unlikely.

Claims

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Claims (2)

P ate η ta η s ρ r Ü che Actuating device for aerosol spray cans with an im essential cylindrical body and an upper part equipped with a valve, in which the valve opens when moved sideways to the longitudinal axis of the can is indicated by an on the valve attached spray nozzle part (19) J an outwardly extending Intermediate part (26) extending from the spray nozzle part (19) transversely to the longitudinal axis of the can; one of that Intermediate part (26) outwardly and downwardly curved finger part (25) which is pressed to open the valve move the valve sideways; a can cover (18) rotatably mounted on the upper part of the can, the a substantially cylindrical side wall (32) and. one has flat top wall (33), the finger part of the. Actuating device is located inside the side wall, the flat top wall is provided with an opening above the nozzle part of the actuating device, through which the contents of the can can be sprayed, if that Valve is opened, the side wall of the can lid with a side opening (34) is provided, the can lid on the can between an actuating position in which the Opening the side wall of the lid the finger part of the actuator releases and enables the actuation device to be depressed to open the valve, and a rest position in which an uninterrupted part of the side wall of the can lid is opposite the finger part of the actuating device a pressing down of the actuating device prevented} the upper part (12) of the can (10) is essentially dome-shaped is and the lower rounding of the pinger part (25) of the actuating device (17) is arcuate from the 409829/0268 Finger part of the actuating device extends transversely to the can axis with an essentially similar curvature as the dome-shaped upper part, so that the distance between the lower circumference of the finger part and the dome-shaped upper part is selected when the valve is closed that the lower circumference of the finger part grips the dome-shaped upper part before the actuating device is depressed so far that the contents of the can spray against the flat top wall (33) of the can lid (18). 2. Apparatus according to claim 1, characterized in that e η η ζ eichn et that ^; the finger part (25) of the actuating device (17) is provided with a plurality of ribs (28a) and each rib comes to lie in a plane transverse to the can axis. 409823/0268