Abstract:
An actuator assembly for a dispensing device including a cap for engagement with a container neck, the cap having a series of flats therein, an operable dispensing button with a discharge orifice, the button having a series of flat sides with a series of tabs thereon, a cover piece enclosing the button which exposes a portion of the button for finger engagement, and a guide slot in the cover piece to prevent relative movement between the button and the cover.

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to actuator caps for small liquid dispensers and more particularly to caps which are mounted or secured in place by means of screw threads. Dispensing containers of the hand-held variety, for example, aerosol or spray pump types, are used quite commonly for packaging and dispensing a multiplicity of products. Many of the products dispensed could cause harm to uninformed users such as children. Products dispensed may include paint, lacquers, oil, hair spray, insecticide, cleansers, paint removers, oven cleaners, etc. Obviously, due to the hazardous nature of such materials, unauthorized utilization of such should be presented. 
     Fortunately, there are many so-called &#34;child-resistant&#34; devices presently on the market to prevent dispensing of harmful products by children. However, most of these devices rely upon either the difference of strength or manual coordination between an adult and a child. Such reliance often results in frustration for adults who do not have the strength and manual dexterity even though they have the mental maturity to affect dispensing of the product. This is especially true of persons suffering from arthritis or other debilitating diseases. Thus, there is a need for a child-resistant actuator which may be utilized on dispensing containers which do not rely on any difference of strength or manual coordination between an adult and a child. 
     It is therefore an object of the invention to provide a child-resistant device which may be utilized on dispensing containers which is highly child-resistant but which at the same time is easily used by adults-indeed the actuator of this invention is particularly suitable for use even by adults suffering from physical disabilities of the hands. 
     THE INVENTION 
     In accordance with the present invention there is provided an actuator assembly for a dispensing device including a cap for engagement with a container neck, the cap having a series of flats therein, an operable dispensing button with a discharge orifice, the button having a series of flat sides with a series of tabs thereon, a cover piece enclosing the button which exposes a portion of the button for finger engagement, and a guide slot in the cover piece to prevent relative movement between the button and the cover. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a partly sectional, side elevational view of the assembly of the present invention. 
     FIG. 2 is an exploded perspective view of the assembly of the present invention. 
     FIG. 3 is a cross-sectional view taken along lines 3--3 of FIG. 1. 
     FIG. 3A is a rotative cross-sectional view taken along lines 3--3 of FIG. 1. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     As shown in the drawings, the actuator assembly includes a cap dispensing pump assemblage which is intended to be removably mounted on a container of the type having a threaded neck. If desired the threads can be deleted on the cap and the cap could be attached by such conventional means as snapping, or the like. The containers used with such assemblages include glass or plastic bottles, and are well known in the art. 
     The actuator assemblage includes a cap piece designated generally by the numeral 10, having internal screw threads 12 arranged for engagment with the usual threaded neck of a bottle. The cap body piece 10 has an internal annular flange 14 against which there is fitted a cooperable annular flange 16 of a pump assemblage generally designated by the numeral 18. 
     The pump assemblage 18 comprises a plastic housing 20 in which there is a cylinder and piston or plunger (not shown), the housing having a dependent dip or siphon tube 22 arranged to extend into the container to the bottom thereof. The pump assemblage 18 may be of any usual type, one suitable for use in the present actuator cap assemblage being that described in detail in the U.S. Pat. of O&#39;Donnell and Steiman, No. 3,159,316, dated Dec. 1, 1964, and entitled, &#34;Atomizer Pump.&#34; 
     When the actuator assemblage is mounted on a container, the cap piece 10 will be screwed down tightly so that the top lip of the container opening engages the annular flange 16 of the pump assemblage 18 thereby to provide a seal which prevents leakage of the container contents. For such arrangement the body piece 10 may have various different rotative positions on a container, depending on the disposition of the internal screw threads 12 as well as the disposition of the cooperable external screw threads on the container neck. 
     In accordance with the present invention, there is provided on the body piece 10 and operable button having at one side a discharge orifice, which button is both vertically movable and turnable or rotatably movable on the body piece 10, as well as a cover piece which encloses the body piece and is also mounted on the body piece 10. The cover piece provides clearance for the side discharge orifice of the button and is frictionally held by the body piece in such a manner that it may be rotatably adjusted with the button to enable these two to be turned so as to orient them with respect to the container and body piece 10. Aside from adjustable rotative movement, the cover piece does not have any other movement but instead is rigidly and securely mounted on the body piece 10. 
     The cover piece is indicated generally by the numeral 24 and the operable button is indicated at 26. The button 26 is secured to a vertically movable plunger shank 30 on pump assemblage 18. The flange 16, cylinder 20 and shank 30 constitute means for movably mounting the button 26 on the cap body piece 10. 
     The button 26 comprises a conical body 32 having a projecting side orifice or nozzle 34 and a nozzle cover 36 whereby liquid passing up through the hollow plunger shank 30 flows upward through passageways (not shown) and conical body 32 and is ejected from orifice 34, either in the form of a fine spray or else as a stream of viscous liquid substance. The conical body 32 has a sloping top 38 for engagement by the finger of the user, and it will be understood that (as is conventional) the pump assemblage 18 includes a plunger return spring (not shown) which normally maintains the shank 30 of the button 32 in the raised, non-discharging position of FIG. 1. 
     The cover piece 24 is also of conical configuration, having in one side wall a vertical slot 40 in which nozzle cover 36 is guided, and with which it cooperates to prevent relative turning movement between the button and the cover piece. 
     A friction mounted is provided on the cover piece 24 and cap piece 10 which yieldably holds the cover piece and button 32 in different adjusted rotative positions with respect to the body piece thereby to enable the cover piece and the button to be rotatably adjusted with respect to the container on which the cap is attached. The friction mounting comprises inner fitting rim portions 44 and 46 of the body and cover pieces, said rim portions having internal and external shoulders 48 and 50 respectively, which are respectively of smaller and larger diameters to provide an inner lock between the cover and body piece while at the same time enabling adjustable, rotatable movement of the cover piece to be affected with respect to the body piece. 
     The cover 24 and body pieces 10, as well as the button body 32 are molded out of resilient plastic substance such as polyethylene or similar formulations, and at least one of the inner locking pieces are sufficiently yieldable to enable a snap fit or assemblage to be affected. Preferably, both the cap 10 and cover piece 24 are resilient, whereby both rim portions yield to a slight extent to enable the assembly of these to be easily affected. 
     Once the body and cover pieces are assembled they do not normally come apart but instead the cover piece provides a guide for nozzle cover 34 as well as a protective guard for button 32, preventing inadvertent operation of the button and insuring that the nozzle or orifice is always properly pointed or oriented. At the time the actuator assemblage is mounted on the container, the latter may be oriented with respect to the cover piece 24 and nozzle 34 by merely turning the cover piece in either direction while holding the container. 
     In FIG. 2 the body piece 10 can be seen to have seven flats thereon, 61, 62, 63, 64, 65, 66 and 67, projecting upwardly from flange 14. Flats 62 and 63 form slot 68 therebetween; flats 63 and 64 form slot 69 therebetween; and, flats 66 and 67 form slot 70 therebetween. All of the flats extend upward from the cap and have an arcuate outer surface, a flat inner surface, and a flat upper surface. Flat 63 has a protuberance 63a thereon for receipt of hole 35 of cap 24 to indicate when the actuator cover is in the proper position for dispensing fluids. 
     Actuator button 26 can be seen in FIGS. 3 and 3A to have four flat sides, 51, 52, 53 and 54. When turned in the position shown in FIG. 3A, the four flat sides of the actuator button are aligned to be received within flats 61 thru 67, tab 43 is aligned to be received within slot 70, and tabs 41 and 42 aligned to be received in slots 69 and 68, respectively, when button 26 is depressed. The dimensions of actuator button 26 are such that the four flat sides thereof will fit within the interior of the flats 61 thru 67. Thus, when the actuator button 26 is rotated to the position of FIG. 3A, the button can be depressed and it will move downwardly until it strikes flange 14. 
     However, when the actuator button is in any position other than that shown in FIG. 3A, for example that shown in FIG. 3, the button or the tabs thereon strike the top of one or more of the flats 61 thru 67, thus preventing the downward movement of the button and preventing dispensing of the fluid. 
     To enable one to easily locate the operative position, hole 35 is located in the outside of cover 24 and protuberance 63a is located on flat 63. The protuberance may be painted red or may be merely replaced with red or colored spot. Thus, to find the operative position, one can turn cover 24 and its associated button 26 until the protuberance or marking 63a appears in the hole 35. At this point, the pump assembly is in the operative position and fluids can be dispensed therefrom. 
     Having fully described the present invention, it is desired that it be limited only within the spirit and scope of the following claims.