MXPA99010445A - Total release actuator for an aerosol can - Google Patents

Abstract

A total release actuator for use with an aerosol can having a chime (18), a dome (16), and a valve (24) having a valve stem (26). The actuator has an actuator body (28) with a lower margin defining a skirt rim (32) that attaches to the aerosol can and a central well (36) having a generally horizontal well floor that has a trigger port extending therethrough. The actuator has a trigger (48) that is hingedly attached to the actuator body, preferably at its front end (56) to the front end of the trigger port. The trigger swings downwardly when it is depressed. The trigger extends across the valve stem and includes a downwardly open stem socket (58) that receives the valve stem. The stem socket communicates with a discharge nozzle (60). The trigger, when moved downwardly, activates the valve, releasing the contents of the can through the discharge nozzlevia the stem socket. A latch (62) is attached to preferably each side of the trigger port, extending laterally under the trigger. The latch is elastically deformable, allowing the trigger to pass as it is depressed downwardly and then springing back over the trigger to retain it in the depressed, valve-activating position, allowing can contents to discharge. By this means, a user can release the entire contents of the aerosol can without the user's having to continue to depress the trigger. A method is described of discharging the contents of an aerosol can by use of such an actuator.

Description

TOTAL RELEASE ACTUATOR FOR A LIGHT OF AEROSOL BACKGROUND OF THE INVENTION This invention relates to actuators for aerosol cans and, in particular, to actuators that are activated once, are closed in the actuated position, allowing all the contents of the aerosol can to be released without further action by the user. Such full-release actuators are commonly used in insecticide fogging products and with other products that are intended to be used as a single large discharge instead of serially separated explosions. The device shown in the patent of E.U.A. No. 4,428,509 to Emerson et al. Is an example of said actuators. They are designed for use with a normal aerosol can that has a valve cup with a valve cap ring and a central valve holder. The device of Emerson et al., Fits under pressure on the valve cup ring. The Emerson device and others on the valve cup ring. The device has a trigger hingedly mounted on an actuator body. The trigger is pressed by the user, activating the valve by the pressure exerted downwards against the valve support. The body has a projection pin that appears towards the end of the trigger which is distant from the hinge. When the trigger is depressed, the pin snaps onto the cooperating structure at the end of the trigger, closing the trigger in the down position. The Patent of E.U.A. No. 3,137,414 to Steinkamp; the Patent of E.U.A. Abplanalp et al. No. 3,185,350; and a modality shown in the patent of E.U.A. No. 4,277,004 of Barlics, they attach a hinged trigger generally similar to that of Emerson and others, but with different locking strategies. The actuators of these patents are connected to the valve cup ring. Conventional valves for aerosol cans are commonly designed to be activated in one of two different ways. Either the valve holder is pushed directly under the activator or tilted to the side. The newly-treated actuators are designed to be used with valves of the type that require the activation of vertical thrust. The Patent of E.U.A. No. 5,503,303 to LaWare, teaches use with a side tilt valve. The Patent of E.U.A. No. 5,503,303 of Ware et al., Utilizes a sliding panel that engages a valve holder. The actuator is used by horizontally pushing the panel, whose movement changes from side to valve support, activating by itself. The seals in the can interact with the structures on the moving panel to close in position. The device of LaWare and others, is connected to the top of the can. The top is the union formed between the body of the can and the structure generally in the shape of a dome that supports the orifice of the valve.

The technique includes a number of designs for closed actuators that couple a button type structure that is directly depressed downwardly to drive a vertical push type valve, the button then closes in the down position in the down position. See, for example, the U.S. Patent. No. 3,804,303 of Yamada et al .; the Patent of E.U.A. No. 3,844,448 of Sette; Patent of E.U.A. No. 4,186,853 of White; Patent of E.U.A. No. 4,277,004 of Barlics; Patent of E.U.A. No. 3,729,120 to Sette et al .; and Patent of E.U.A. No. 3,519,173 of Sagarin. The Patent of E.U.A. No. 4,260,080 to Gailistis, shows a device that is supported only by a valve holder and is adapted to be used with an inclined support valve. Most of these devices are mounted on the valve cup ring, and all listed devices use a pressure trigger arm on which they are mounted. This can pose difficulties illustrated by the Emerson device and others, as seen in Figures 5 and 6 of the U.S. Patent. No. 4,428,509. The arm of the trigger or "actuator button" shown as 26 in those drawings is, of great necessity, to shorten the width of the valve orifice. Consequently, when moving from the upward position (shown in Figure 5) to the downward position (shown in Figure 6) the gap of the valve support through an arc. As a result, the longitudinal axis of the hollow oscillations considerably deviated from the longitudinal axis of the valve support, increasing the opportunity to close the interface between the poorly aligned gap and the valve support. The pressable end of the Barlics trigger arm shown in Figures 4-6 extend to the valve orifice ring circuit. However, the Barlics hinges remain inside the valve orifice ring, so that the distance of the hinge to the valve support gap is as short as the distance in Emerson and others, with the same geometrically imposed alignment difficulties. . The trigger trigger arm of Emerson et al., Closed in the downward position by the action of a single hook, shown as 52 in the Emerson et al. Figures, extending from the actuator body to engage a flange 54 on the trigger actuator Rupture or other mechanical failure of the single hook 52 results in a non-operable total release actuator. In addition, if the entire Emerson actuator and others are flexed by side-to-side pressure, the flange 54 tends to be pulled away and out from under the hook 52 to release the button 26, interrupting the dispersion of the contents of the aerosol can. In the art there is still a need for a reliable total release actuator having a support which reliably couples the valve support by full oscillation of the trigger arm and is less subject to failure by distortion of the actuator or failure. mechanics of simple closing devices.

BRIEF COMPENDI OF THE INVENTION The invention provides a total release actuator for use with an aerosol can that has a cap, a dome and a valve having a valve holder. The actuator has an actuator body having a peripheral flange extending downwardly, the lower margin of the peripheral flange defining a flange ring. The actuator is adapted to hold the aerosol can, and preferably the flange edge is adapted to be attached to the aerosol can. The actuator body has a central well which has a generally horizontal well floor. The well floor has a trigger port extending therethrough, the trigger port having a front end, a rear end and opposite sides. The actuator has a longitudinally extended trigger having a front end, a rear end and sides. The trigger is attached to one of its front and rear ends at the corresponding end of the trigger port by a hinge. The hinge allows the end of the trigger to be remote from the hinge to slide downwardly when the trigger is depressed, the trigger extending from the hinge crosses the valve support when the actuator is in place on the aerosol can. Preferably, the trigger is clamped from its front end to its rear end of the trigger port. In this preferred arrangement, the hinge allows the rear end of the hinge to slide downwardly when the trigger is depressed.

The extended trigger crosses the valve holder when the actuator is placed on the aerosol can and includes a descendingly open tube recess which is adapted to receive the valve holder. The support receptacle is a fluid communication with a discharge nozzle. The trigger, when moving down, activates the valve by exerting a pressure on the valve support, releasing the contents of the can through the discharge nozzle via the support receptacle. The actuator further includes an elastically deformable latch connected to one side of the trigger port and to one side of the trigger and is adapted to engage the other side of the trigger port and the trigger side when the trigger is in a trigger position of the valve. Pressed to hold the trigger in this position. Preferably, the pin is attached to one side of the trigger port and extends laterally below the trigger. When attached to the port of the trigger, the pin first flexes laterally, allowing the trigger to be depressed by a way of the user to the pin to a position that activates the valve. Then the back of the sprouts of the pin on the trigger to retain in the position of activation of the valve, allowing the content of the can to be discharged. By these means, a user can release all the contents of the aerosol can without the user having to continue to squeeze the trigger. In a preferred embodiment, the total release actuator includes two pins, one extending from each of the opposite sides of the trigger port, to hold the trigger low and between the pins when the user has to pull the trigger downwardly beyond from the bolts to the activation position of the valve. In another preferred embodiment, the pin is located below the level of the well floor. In this embodiment, the trigger includes a push pad, on which the user can push or squeeze the trigger. The trigger further includes a falling side that extends downwardly having a handle presented in ascending form. As the trigger is depressed in the position that activates the valve, the handle moves down and then engages the pin, closing the trigger in the position that activates the valve. The pin is located sufficiently below the floor of the trigger well that it reaches its valve activation position before a user's little finger presses the push pad, forming the contact with the pin. Although the flange edge can be adapted to be achieved and preferably secured to the top of the aerosol can, the hinge is distal to the valve cup ring when the actuator is placed on the can, and so that the trigger includes a Remote hinge push pad, with the support receptacle located between the hinge and the push pad. In one aspect, the total release actuator of the invention includes a release strip secured by the attachment members to both of the ends of the remote hinge trigger and the corresponding end of the remote trigger port of the hinge. The release strip and the joining members having strength and strength so that the release strip stabilizes the trigger to reduce the opportunity for premature activation. However, when the user intentionally and forcefully moves the release strip, the joining members break, allowing the release strip to be removed, releasing the trigger to be pressed. Preferably, the joining members are formed so that they break at a remote point of the release strip. This causes the joining members, when the strip comes off, to be released from the trigger and the rear end of the trigger port and remain attached to the release strip. In a more preferred embodiment of the invention, the peripheral flange extends upwardly above the level of the well floor, and the central well has a well wall extending upwardly from the margins of the well floor and merging to the margin. top of the peripheral flange to form a double wall, a hollow branching structure. Preferably, the actuator includes, in combination, the branched structure, the pit floor and flange edge that engage the described spur, which coact to increase the strength of the actuator body for lateral flexion. As a result, the reliability of the pin retention of the trigger in the position that operates the valve is improved.

The method of the invention for the total release of the contents of an aerosol can includes the following steps, the aerosol can having a cap and a valve, the valve having a valve holder. First, a total release actuator, in one of the aspects or forms described above, is provided, subject to the aerosol can, and preferably to the can end. Then the trigger is pressed by manual pressure until the pin engages the trigger to retain it in its valve actuation position. Finally, the content of the can is downloaded. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front perspective view of the total release actuator of the invention, above and to the right. Figure 2 is a top plan view of the actuator of Figure 1. Figure 3 is a bottom plan view of the actuator of the Figure 1. Figure 4 is a cross-sectional view taken along the lines of section 4--4 of Figure 2. Figure 5 is a cross-sectional view taken along the lines in the section 5--5 of Figure 2. DETAILED DESCRIPTION OF THE INVENTION Returning now to the drawings, wherein like parts are indicated by like reference numbers. Figure 1 shows the preferred embodiment of the total release actuator of the invention, generally shown as 10. The total release actuator 10 is adapted to be used with a conventional aerosol can, so that it shows in imaginary form 12 in Figure 4 Said aerosol can 12 includes a cylindrical can wall 14 which is closed at its upper margin by a dome 16. The junction between the upper margin of the can wall 14 and the dome 16 refers to a finishing can 18. A valve orifice 20 is located in the center of the dome 16 and is joined to the dome by a joint that is referred to as the valve orifice ring 22. A valve 24 is located in the center of the valve orifice 20. The valve 24 it has an upwardly extending valve holder 26, through which the contents of the can can be expelled. Valves 24 are vertically acting valves, which open by moving the valve holder 26 directly in a decent manner, or valve that tilts laterally. The laterally inclined valve acts to cover the valve support laterally. The total release actuator 10 has an actuator body 28 adapted to hold the aerosol can 12. The actuator body 28 has a peripheral flange 30. The lower margin of the peripheral flange 30 defines a flange ring 32. The flange ring 32 it is adapted to be placed on and coupled to the spout 18. The flange ring 32 should extend that "engages" the spike 18 if it is in contact with the spike in such a way that it is laterally reinforced against it. Preferably, the flange ring 32 is actually joined to the cap 18 by means of lower cuts 34 extending inwardly from the inner surface of the flange ring. In the assembly, the actuator body 28 is forced down on the spine 18, the lower cuts 34 sliding on the spout to adjust to pressure below it, holding the actuator body to the spike. The advantage of this coupling point or connection will be discussed later. The actuator body 28 also has a central well 36. The central well 36 preferably has a generally horizontal well floor 38, best shown in Figures 1 and 2. The central well 36 has a trigger port 40, preferably located and which is extends through the wall floor 38. The trigger port 40 has a front end 42, a rear end 44 and opposite sides 46.

The total release actuator 10 of the invention includes a longitudinally extending trigger 48. The trigger 48 has a front end 50, a rear end 52 and sides 64. The trigger 48 is attached to one of its front and rear ends 50., 52 to the corresponding front or rear end 42, 44 of the trigger port 40. This is held by means of a hinge 56, which is more convenient than a maintenance hinge which is a unitary model than the remaining parts of the full release actuator. 10. Preferably, the trigger 48 is attached to its front end 50 to the front end 42 of the trigger port 40, as shown in the figures, to allow the trailing end of the trigger 52 to slide downwardly when the trigger is press. In any case, the hinge 56 allows the end of the trigger 48 that is remote from the hinge to oscillate downwardly when the trigger is depressed. The trigger 48 extends from the hinge 56 which crosses the valve holder 26 when the actuator is placed on an aerosol can 10. The relation is best shown in Figure 4. The trigger 48 further includes an upwardly open tube recess 58, shown in Figures 3 and 4. The tube gap 58 is adapted to receive the valve holder 26 and is a fluid communication with a discharge nozzle 60. The trigger 48, when moving downwardly, activates the valve 24 by the pressure exerted on the valve holder 26 to release the contents of the can 10 through the discharge nozzle 60 via the receptacle of the holder 58. The total release actuator 10 of the invention further includes a pin 62 which is preferably elastically deformable . The pin 62 is secured to one of the sides 46 of the trigger port 40 and one side 54 of the trigger 48. The pin 62 is adapted to achieve the other of the sides 46 of the trigger port 40 and the side 54 of the trigger 48 when the trigger is pressed, the valve activation position to hold the trigger in this position. When the valve activation position, the trigger 48 moves the valve holder 26 sufficiently to activate the valve 24. It is preferred that the pin 62 be attached to a side 46 of the trigger port 40 and that, prior to the actuator total release 10 is activated, the pin 62 extends laterally under the trigger 48, as best seen in Figures 3 and 5. In one embodiment, when the trigger 48 is depressed by a user, the pin 62 first flexes laterally, allowing the trigger 58 to pass downward toward the pin to the position that drives the valve. When the trigger 48 reaches the valve activation position, the pin 62 is then pressed onto the trigger to retain the trigger in the valve activation position. Preferably, the total release actuator 10 includes two pins 62. In the preferred embodiment shown in the figures, a pin 62 extends from each of the opposite sides 46 of the trigger port 40, although the location of the pins on the sides Opposite 54 of trigger 48 is also possible. By these means, the two pins 62 that hold the trigger 48 low and between the pins when a user has to pull the trigger down between them to the position that activates the valve 10 described below, can be more reliable and free retention difficulties of the trigger 48 when the actuator is used. Preferably the pin 62 is located between the level of the pit floor 38. Preferably, the trigger 48 includes a thrust pad 64 on which the user can push or squeeze the trigger. The push pad 64 can be a specially shaped surface for comfortably receiving the user without slipping the trigger 48, as is the push pad shown in the Figures. However, any surface that is available for a user to push when the trigger 48 is moved is within the scope and scope of the invention. The trigger 48 preferably also includes a downwardly extending drop side 66. The drop side 66 has an upwardly presented handle 68, the drop side and the handle being best shown in Figure 6. The handle 68 moves downwardly. of the, and then engages the pin 62 when the trigger 48 is depressed to the position that activates the valve. The pin 62 is located sufficiently below the pit floor 38 of the trigger 48 to reach its valve activation position before the actuator presses it, pressed on the push pad 64 having the opportunity to contact the pin. Preferably, the hinge 56 is located at a point no less distal than the valve support 26 than the valve cup ring 22, when the actuator is placed on the can 12. Also preferably, the push pad 62 is located on the remote point of the hinge 56 and the cup of the tube 58 is located between the hinge and the thrust pad. This arrangement is relatively difficult to improve with a valve cup ring 21 for adjusting the actuator 10, which is one of the reasons why the adjustment of the spout 18 is preferred. The location of the hinge enables an extended length trigger 48 when compared to the hinge of the trigger to a point within the valve orifice ring 22, providing a more advantageous lever arm length. An advantage of the preferred hinge location is that it is made for a user to activate the valve 24 simply because of the mechanical advantage of the lower lever arm. But since, the arrangement allows the tube gap 58 to additionally form the hinge 56 which could be the case of the east hinge within the ring circuit of the valve cup 22. Consequently, the tube cup 58 can move downwardly to activating the valve 24 without the support receptacle oscillating towards the axial element with the valve holder 26 as it could be the almost if the hinge is located within the valve cup ring 22. This allows a more reliable arrangement of the valve holder 26 without tube gap 68, with less leakage and a reduced function malfunction regime. Preferably the actuator 10 includes a peel-off strip 70 that a unitary pattern with the trigger 48 and the actuator body 28. The peel-off strip 70 is held by the attachment members 72 at both ends of the trigger 48 that are remote from the hinge 56 and the end of the port of the remote trigger of the hinge. Therefore, when the hinge 56 is located at the front end 42 of the trigger port 40, the release strip 70 is located at the rear end 44 of the trigger port. The release strip 70 and the attachment members 72 have a strength and resistance so that the strip stabilizes the trigger 48 while the release strip is in place, reducing the confidence of premature activation. However, when a user intentionally or forcefully moves the release strip 70, the attachment members 72 break, allowing the release strip to be removed and leaving the trigger 48 free to be depressed. The release strip 72 and the attachment members 72 are best shown in Figures 2-4. Preferably, the connecting members 72 are preferably remotely formed at a remote point of the release strip 70 and immediately adjacent to the remaining structure to which they are attached, the trigger 48 being the adjacent surface of the trigger port 40. This arrangement causes the joining members 72, when the release strip 70 is peeled, to be released from the trigger 48 and the adjacent surface of the trigger port 40 and remain attached to the release handle. This arrangement allows the trigger 48 and the trigger port 40 to be released from any remnant of a connecting member 72 which may be non-light or otherwise inconvenient to the finger. Preferably, the peripheral flange 30 of the actuator 10 extends upwardly beyond the level of the floor of the well 38, and a well wall 74 extends upwardly from the upper margins of the well floor. Well wall 74 is best illustrated in Figures 1, 2 and 4. The wall of the well 74 is joined in the upper margin of the peripheral flange 30 to form a double wall, hollow branched structure 76, better illustrated in Figure 4. The branching structure 76 extends peripherally around the central wall 36, preferably at least half and more preferably at least 3/4 of its circumference. Preferably, a space of the finger 78 is left as an opening in the reinforcing structure 76 to allow a user easy access to the push pad 64. The removable ear 70 may be designed to substantially fill the space for the finger 78. , thus reducing the chance of accidental premature activation before removing the detachable handle. The reinforcing structure 76, the floor the well 78, and the flange edge that engages the spine 32, coact to achieve rigidity with respect to lateral compression which, taken together with the location of the side of the bolts 62, is important for the successful operation of the actuator 10. A bolt arrangement mounted on one end, as observed in Emerson et al., US Patent No. 4,428,509, has important disadvantages. Because it is only a bolt, any bolt failure causes the trigger to be released from its actuating position and the actuator malfunctioning. By simply having two locks 62 a reinforcement is provided. However, the placement of the locks is also vital. Extreme positioning, such as in Emerson et al., Locates the bolt that distorts the actuator by a laterally applied compression force, tends to cause the bolt to be pulled out of the trigger, potentially releasing it. This distortion occurs in shipping or in manufacturing (as it can happen, only as an example, if the actuator 10 is mounted on a can of greater or lesser size), it can result in an actuator that does not work completely. The actuator 48 never works badly. The use of a pair of bolts 62, as preferred, ensures even more reliably that at least one bolt will remain in position to close the trigger 48 in its overcrowded position, once the trigger has been depressed, as to that in any movement of the trigger away from a bolt it automatically moves it towards the other bolt. Furthermore, the location of the latches 62 on the sides of the trigger 48 inevitably places them more centrally within the actuator 10. Consequently, the effect of the peripheral distortion of the actuator is reduced, simply by geometry, a large distortion in the periphery results. even a reduced distortion in a radially inner position. However, beyond these advantages of the lateral positioning of the bolts 62, the preferred form of the total release actuator 10 includes the hollow wall reinforcing structure 76 described above. This may be the contrast of the solid structure, of which it corresponds in some way visually to the device of Emerson and others, not only is the reinforcing structure itself 76 very rigid due to its hollow-walled structure, but the well floor 38 provides additional reinforcement. Consequently, the entire structure resists lateral deformation, although lateral pressures are applied from side to side or from the front to the rear, again increasing the reliability with which the bolts 62 extend, and retain the trigger 48 when they have depressed their valve drive position.

Finally, the engagement, and preferably the connection of the flange ring 32, to the spine 18 is rigid by itself, providing a secure shape that retains the shape of the flange ring 32 when engaged with the spout. In the preferred embodiment, a multiplicity of vertical lateral reinforcements 80 project radially from the lower portion of peripheral flanges 30. Preferably, the lateral reinforcements 80 arise from a reinforcing floor 82 formed in the flange 30, the reinforcing floor preferably resting on the top of the can 18 when the actuator 10 is placed on the can 12. The reinforcement floor 82 is preferably substantially horizontal and in any case is less than vertical. The side reinforcements 80 and the adjacent portions of the peripheral flange 30 effectively transmit the stiffness of the flange edge stabilized with the cap 32 to the lower portion of the reinforcing structure 76. The interaction of the reinforcement floor 82 and the side reinforcements 80, together with the remaining adjacent portions of the peripheral sleeve 30, also specifically reinforce the lower part of the actuator body 28 in such a way that they resist both the lateral forces and the upper load applied to the actuator body 28. It will be evident that the lateral positioning of the the bolts 62, the use of two instead of just a bolt, the reinforcing structure 76, the pit floor 38, the flange edge engaged by the spine 32, and the lateral reinforcements 80, individually contribute each to a coupling Reliable trigger 48 for the locks, features that are equally effective if the locks are connected to the sides of the trigger 48 and the low hook or in some manner are coupled to the well floor or other parts of the body 28 of the actuator 10. However, these individually useful parts also co-act to produce a structure that is structurally stable and extremely strong, capable of to withstand to a large extent abuse or unanticipated distortion pressures. At the same time, a total release actuator 10 incorporating some other these aspects can be successfully manufactured unitarily with thin plastic walls and parts to produce a light weight and economical total release actuator. The method of the invention of total release of the contents of an aerosol can 10, includes the step of providing a total release actuator 20 made in accordance with the description shown above, and connecting the total release actuator to the aerosol can, preferably with the edge of the flange 32 engaging the spout 18. A subsequent step of the method is to press the trigger 48 by manual pressure until the latch 62 engages the trigger to retain it in its valve actuating position. Then the can 12 is left unchanged until the contents of the can are discharged. The total release actuator of the invention can be conveniently manufactured from any suitable plastic by normal injection molding techniques well known to those skilled in the art. All the described parts can be unitarily molded in a single part, without requiring an assembly before the connection to the can. The above description is of a preferred embodiment. Alternative and equivalent modalities will be apparent to those skilled in the art and are within the scope and scope of the present invention. Accordingly, the invention should not be considered limited by the specific forms shown and described. On the contrary, the invention should be understood in terms of the following claims. Industrial Applicability The total release actuators have application in the insect control industry as well as with the aerosol product that is intended to be supplied in a single large sprayer. The actuator of the invention can be manufactured by conventional plastic molding techniques from conventional plastics well known to those skilled in the art.

Claims (24)

1. CLAIMS 1. A total release actuator 81) for use with an aerosol can 812) having a dome (16) and a valve (24) having a valve holder (26) activated by a movement directly downward, the actuator comprising: a. an actuator body (28) adapted to be connected to the aerosol can (12) and having a peripheral flange (30) extending downward to a lower margin of the peripheral flange (30) defining a flange edge (32), ii. a central well (36) having a trigger port (40), the trigger port (40) having a front end (42), a reinforcing end (44) and opposite sides (46), b. an elongate trigger (48) having a front end (50), a rear end (52) and sides (54), the trigger (48) i. being connected at one of its front ends (50) and rear (52) to the corresponding end of the port of the trigger (40) by a hinge (56) that causes the end of the trigger (48) to be remote from the hinge (56) for oscillate primarily downward when the trigger (48) is depressed, the trigger (48) extending from the hinge (56) through the valve holder (26) when the actuator is in place in the aerosol can (12), and ii. including a downwardly supporting support receptacle that is adapted to receive the valve support (26), the support receptacle being in fluid communication with a discharge nozzle (60), the trigger (48), when moving downwardly , activating the valve (24) by exerting downward pressure on the valve holder (26), releasing the contents of the can (12) through the discharge nozzle (60) via the support receptacle (58), the actuator further including an elastically deformable latch (62) connected to one of the following components i. one side (46) of the trigger port (40) and ii. one side of the trigger (48) and adapted to be first bent so as to allow the trigger (48) when the trigger (48) moves downward, pass in the trigger port (40) and then spring back elastically to coupling the other of the components (46, 48) when the trigger (48) is in a valve activation position, depressed, to retain the trigger (48) in that position. The total release actuator according to claim 1, wherein the trigger is connected by the hinge (56) at the front end of the trigger (50) to the front end (42) of the trigger port (40) to allow that the trailing end of the trigger (449) oscillates downwards when the trigger (48) is depressed 3. The total release actuator according to claim 2, wherein the aerosol can (12) has a spout (18) and a flange edge (32) is adapted to engage the spike (18), the spline (56) is not less distal to the valve support (26) than the valve cup side (22) when the actuator (10) is in place on the can 812) and the trigger (48) includes a remote push pad (64) of the hinge (56), with the support receptacle (58) being located between the hinge (56) and the push pad (64). The total release actuator of claim 1, including two bolts (62), one extending from each of the opposite sides (46) of the trigger port (40) to hold the trigger (48) low and between the bolts (62) when a user has depressed the trigger (48) down past the bolts (62) to the valve activation position. 5. The total release actuator of claim 1, wherein the bolt (62) extends from one side of the trigger. The total release actuator of claim 1, wherein the bolt (62) extends from one side of the trigger port. The total release actuator of claim 6, wherein the actuator body (28) includes a generally horizontal wellbore (38) and a. a trigger port (40) extends through the well floor (38), b. the bolt (62) is located below the level of the pit floor (38) and c. the trigger (48) includes i. a push pad (64) or which a user can push to squeeze the trigger (48) and i. a downwardly extending drop side (66) having an upwardly facing handle (68) that moves downward and engages the lock (62) when the trigger (48) is depressed to the valve activation position, a bolt (62) being located far enough below the floor of the well so that the trigger (48) reaches its valve activation position before the finger of a user, pressing on the thrust pad (64) makes contact with the bolt (62). The total release actuator of claim 1, including a removable handle (70) unitarily molded with the trigger (48) and the actuator body (28) and connected by the connecting members to the end of the remote trigger (48) of the hinge (56) and the end of the port of the remote trigger (40) of the hinge (56) the release handle (70) and the connecting members (72) being of a strength and resistance that the release handle (70) stabilizes the trigger (48) to reduce the opportunity for premature activation, whereas when a user intentionally and forcefully moves the release handle (70), the connecting members (72) break, allowing the release handle (70) be removed, leaving the trigger (48) free to be pressed. The full-release actuator of claim 8, wherein the connecting members (72) are configured so that they preferably break at a remote point of the release handle (70) causing the connecting members (72) when the detachment handle (70) is released, it is released from the trigger (48) and the trigger port (40) and remain connected to the detachment handle (70). 10. The total release actuator 1, wherein the aerosol can can have a spout (18) and a flange edge (32) is connected to the spout (18). The total release actuator according to claim 1, wherein the actuator body (28) includes a horizontal well floor (238), the peripheral flange (30) extends downwardly beyond the level of the well floor (38) and a well wall (749 extends up from the floor margins of well 838) and joins the upper margin of the peripheral flange to form a double-walled hollow reinforcement structure (76), the structure of reinforcement (76) and the well floor (38) combined to increase the resistance of the actuator body (28) for lateral flexion. 12. A method for the total release of the contacts with an aerosol can (12) having a cap and a valve (24), the valve (24) having a valve holder (26), the method comprising the steps of: to. connecting the total release actuator of any of claims 1-11 to the aerosol can 812); b. pressing the trigger (48) by manual pressure until the bolt (62) engages the trigger (48) to retain it in its valve overcrowded position; and c. leave the can (12) without alteration until the contents of the can are discharged. 13. A total release actuator (10) for use with an aerosol can (12) having a spout (18), a dome (16), a valve (24) having a valve support (26) activated by a movement directly downward, the actuator comprising: a. an actuator body (28) having i. a peripheral flange (30) extending downward to a lower margin of the peripheral flange defining a flange edge (32), the flange edge being adapted to engage the spout (18) of the aerosol can (12). I. a central well (35) having a generally horizontal well floor (38), the well floor (38) having a port (40) having a front end (42), a rear end (449 and opposite sides (46), b) an elongate trigger (48) having a front end (50) a rear end (52) and sides (54), the trigger (48) i, being joined at one of its front (50) and rear (52) ends to the corresponding end of the trigger port (40) by a hinge (56) which causes the end (50, 52) of the trigger (48) to be remote from the hinge (56) to swing mainly downward when the trigger (48) is press, the trigger (48) extending from the hinge (56) through the valve support (26) when the actuator (10) is in place on the aerosol can (12), and ii. including a support receptacle open down (58) which is adapted to receive the valve holder (26), the stem receptacle being in fluid communication with the nozzle a discharge (60), the trigger (48) when moving down, activating the valve (24) by pressing down on the valve holder (26), releasing the contents of the can (12) through the discharge nozzle (60 via the stem receptacle (58), and c. an elastically deformable latch (62) connected to one of the following components i. one side of the trigger port (40), and one side of the trigger (48) and adapted first to be flexed to allow the trigger (48), when the trigger (48) moves down, to pass in the trigger port 840) and then elastically spring-loaded to couple the other component, when the trigger (48) is in a valve activation position to hold the trigger (48) in that position, where the peripheral sleeve (30) extends upwardly above the level of the floor of the well (38), and the central well (36) has a well wall (74) that extends upwards from the margins of the well floor (38) and it joins the upper margin of the peripheral jacket (30) to form a hollow reinforcing structure with double wall (76), the reinforcing structure (76), the well floor (74), and the edge of the coupling flange ( 32) being combined to increase the resistance of the actuator body (28) for lateral flexion. The total release actuator of claim 13, including two latches (62) located on opposite sides of the trigger port (40) and the trigger (48). The method of claim 12, wherein the total release actuator is the actuator of claim 4. 16. The method of claim 12, wherein the total release actuator is the actuator of claim 5. 17. The method of claim 12, wherein the total release actuator is the actuator of claim 6. 18. The method of claim 12, wherein the total release actuator is the actuator of claim 7. 19. The method of claim 12, wherein the total release actuator is the actuator of claim 8. 20. The method of claim 12, wherein the total release actuator is the actuator of claim 9. 21. The method of claim 12, wherein the total release actuator is the actuator of claim 10. 22. The method of claim 12, wherein the total release actuator is the actuator of claim 11. 23. A total release actuator for use with an aerosol can have a spout, a dome, and a valve having a valve support, the actuator comprising: a. an actuator body that has i. a peripheral flange extending downward to a lower margin of the peripheral flange defining a flange edge, the flange edge being adapted to engage the spray can cap, ii. a central well having a generally horizontal well floor, the well floor having a trigger port extending therethrough, the trigger port having a front end, a rear end, and opposite sides, b. a longitudinally extended trigger that has a front end, a rear end and sides, the trigger i. being connected at one of its front and rear ends to the corresponding end of the trigger port by a hinge that allows the trigger end to be remote from the hinge to swing downward when the trigger is depressed, the trigger extending from the hinge through the hinge. valve stem when the actuator is in place on the aerosol can, and ii. including a downwardly open support receptacle that is adapted to receive the valve support, the support receptacle being in fluid communication with a discharge nozzle, the trigger, when moved downward by activating the valve by exerting pressure on the support valve, releasing the contents of the can through the discharge nozzle via the support receptacle, and c. a deformable bolt elastically connected to one of one side of the trigger port and one side of the trigger and adapted to engage the other side of the trigger port and the trigger side when the trigger is in a depressed valve activation position to retain the trigger in that position, where the flange extends peripherally upwards from the level of the floor of the well and which extends upwards from the margins of the floor of the central well has a well wall that extends upwards from the margins from the well floor and joins the upper margin of the peripheral flange to form a double-walled hollow reinforcement structure, the reinforcing structure, the pit floor and the edge of the coupling tab flange combining to increase the strength of the actuator body for lateral flexion. 24. The total release actuator of claim 23, including two bolts located on opposite sides of a trigger port and the trigger. SUMMARY A total release actuator for use with an aerosol can can have a spout (18), a dome (16), and a valve (24) having a valve support (26). The actuator has an actuator body (28) with a lower margin defining a flange edge (32) which is connected to the aerosol can and a central well (36) having a generally horizontal well floor having a port of trigger extending through it. The actuator has a trigger (48) which is hingedly connected to the actuator body, preferably at its front end (56) to the front end of the trigger port. The trigger swings down when pressed. The trigger extends through the valve holder and includes a downward open support socket (58) that receives the valve holder. The open-down support receptacle (58) that receives the valve holder. The support receptacle communicates with a discharge nozzle (60). The trigger, when moving down, activates the valve, releasing the contents of the can through the discharge nozzle via the support receptacle. A support (62) is preferably connected on each side of the trigger port, extending laterally below the trigger. The latch is elastically deformable, allowing the trigger to pass as it is pressed down and then springing back the trigger to hold it in the depressed valve activation position, allowing the contents of the can to discharge. By this means, a user can release all the contents of the aerosol can without the user having to continue to press the trigger. A method for discharging the contents of an aerosol can is described by using said actuator.