Patent Publication Number: US-4838456-A

Title: Enclosed vapor dispensing apparatus and method

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The invention generally relates to a fluid dispensing apparatus and method, and, in particular, the invention relates to an aerosol type spray dispensing apparatus and method comprising a housing with an open-sided chamber and having a cantilever beam or lever with passage means and having actuating means operable by hand within ther chamber to actuate an aerosol type container located outside the chamber to dispense a spray into the chamber either onto the hands of the person actuating the beam or lever or onto an object held by the person actuating the beam or lever. 
     2. Description of the Relative Art 
     A prior art dispensing apparatus is shown and described in U.S. Pat. No. 4,598,664, issued July 8, 1986 in the name of Jerry F. Hamlin who is also the inventor of this application. 
     The prior art dispensing apparatus includes a housing having a fully closed chamber for storing paper to be impregnated with a substance, and includes a cantilever beam mounted outside the housing and having passage means for passage of the substance from an outside aerosol container to the chamber. 
     One problem with the prior art dispensing apparatus is that it is not suitable for use in spraying the hands of a person. 
     SUMMARY OF THE INVENTION 
     According to the present invention, a dispensing apparatus is provided. The apparatus comprises a housing having an opensided chamber for use in enclosing the hands of a person, and comprises a cantilever beam mounted outside the housing and having passage means for the passage of a substance from an outside aerosol container to the chamber, and comprises actuating means operable by hand inside the chamber for permitting simultaneous spraying of the hands and actuating the aerosol container to dispense its contained substance through the passage and into the chamber. 
    
    
     The foregoing and other objects, features and advantages will be apparent from the following description of the preferred embodiment of the invention as illustrated in the accompanying drawings. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of an embodiment of the invention; 
     FIG. 2 is a section view taken along the line 2--2 of FIG. 1; 
     FIG. 3 is a perspective view of another embodiment of the invention; 
     FIG. 4 is a section view taken along the line 4--4 of FIG. 3; and 
     FIG. 5 is a section view taken along the line 5--5 of FIG. 4. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In FIG. 1 and 2, a dispensing apparatus 10 according to the invention is shown. Apparatus 10 includes a housing 12, acuating means 14, which is supported by the housing 12, a resilient cantilever beam 16 which is also supported by housing 12, and an aerosol container 18 which is disposed outside of housing 12. While the hands of a person are enclosed within housing 12, the actuating means 14 can be engaged by a hand to cause a substance to be released by aerosol container 18 and to be conducted through the resilient cantilever beam 16 to the hands within housing 12. 
     Housing 12 includes a front wall 20, a bottom wall 22, a left side wall 24, a right side wall 26, and a top wall 28, which together form a chamber 30. Housing 12 has a rear opening 32 to chamber 30 through which the hands of a person can be inserted into chamber 30. Bottom wall 22 is fixedly connected to a platform portion 34, which has a recess 35 for receiving aerosol container 18. Housing 12 is preferably made of transparent plexi-glass or plastic type material in this embodiment. 
     In FIGS. 1 and 2, actuating means 14 includes an L-shaped member 36, and a pivot means 38, which pivotally supports L-shaped member 36. By applying an upward force 44 by a person&#39;s hand to L-shaped member 36 within chamber 30, a downward force 46 acts on resilient cantilever beam 16 which causes resilient cantilever beam 16 to deflect downwardly through an angle of deflection 40, thereby actuating container 18. 
     Pivot means 38, which has a pivot axis 48, includes a left collar 50 which is fixedly connected to front wall 20, a right collar 52 which is fixedly connected to front wall 20, and a pivot pin 54 which is journaled in collars 50 and 52. Pivot pin 54 extends through and is connected by a loose fit to L-shaped member 36. 
     L-shaped member 36 passes through an opening 56 in front wall 20. Another opening 58 in front wall 20 receives cantilever beam 16, as explained hereafter, in order to form a fixed connection of beam 16 to front wall 20. 
     In FIG. 1 and 2, L-shaped member 36 has a horizontal leg 60 and a vertical leg 62, which has a top bearing portion 64. Horizontal leg 60 is fixedly connected to a disc member 66 for hand operation of L-shaped member 36. A part of a hand remains in contact with disc 66 in order to actuate the aerosol container 18 to release a substance through beam 16 to the hands. 
     Resilient cantilever beam 16 includes an outer portion of circular profile 68 and an inner tubular portion 70. Tubular portion 70 is press fit within opening 58. An adhesive deposit or fillet weld 71 of annular shape joins tubular portion 70 to front wall 20. Beam 16 has an upper face 72, which has a bearing recess 74 that receives tip portion 64. Beam 16 also has a lower face 76. Beam 16 has a cavity 78 in face 76 and a passageway 80, which extends from cavity 78 to an orifice 82. When aerosol container 18 is actuated by force 46, which passes through top portion 64 and beam 16, a substance passes through passageway 80 and emits from 82 as a spray 81. 
     Aerosol container 18 has a lower can portion 84 which is recieved in recess 35, and an upper, spring-biased cap portion 86, which is received in cavity 78. A passageway 88 extends through cap portion 86 for emitting a substance into passageway 80 when cap portion 86 is pressed down by beam 16 and top portion 64. 
     Resilient cantilever beam 16 springs back, upwardly through angle 40, to its release position, when force 44 is not applied any longer. Thus, the flow of the substance is stopped. 
     For ease of maintenance, aerosol container 18 can be removed by lifting beam 16 and moving container 18 out of recess 35 and cavity 78. A replacement container containing any desired substance can then be rapidly and easily installed in a removal procedure. 
     In FIGS. 3 and 4, an alternate embodiment of dispensing apparatus 10a is shown. Each part of FIGS. 3 and 4, which is the same as a corresponding part of FIGS. 1 and 2 has the same numeral, but with a subscript &#34;a&#34; added thereto. 
     Dispensing apparatus 10a includes a housing 12a, means 14a, a resilient cantilever beam 16a, and an aerosol container 18a. 
     Housing 12a includes a front wall 20a, a bottom wall 22a, a left side wall 24a, a right side wall 26a, and a top wall 28a, which together forms a chamber 30a. Housing 12a has a rear opening 32a. Bottom wall 22a is fixedly connected to a platform portion 34a, which has a recess 35a. A support wall 100 rests on platform portion 34a and is connected to front wall 20a. 
     In FIGS. 3 and 4, actuating means 14a includes an L-shaped member 36a, and a pivot means 38a. By supplying an upward force 44a by a hand to L-shaped member 36a within chamber 30a, a downward force 46a acts on resilient cantilever beam 16a, which causes resilient cantilever beam 16a to deflect downwardly through an angle of deflection 40a, thereby actuating container 18a. 
     Pivot means 38a, which has a pivot axis 48a includes a pivot pin 54a which is connected by a loose fit to L-shaped member 36a. 
     Support 100 has extensions 102 and 104, which are seperated by a notch 106. Pivot pin 54a is journaled in respective holes in extension 102, 104. L-shaped member 36a passes through an opening 56a in front wall 20a. Support 100 has a hole 108 in which beam 16a is press fit to form a fixed connection between support 100 and beam 16a. 
     In FIGS. 3 and 4, L-shaped member 36a has a horizontal leg 60a and a vertical leg 62a. Horizontal leg 60a has a disc member 66a, which is fixedly connected thereto. Vertical leg 62a has a tip bearing portion 64a. 
     As shown in FIGS. 4 and 5, horizontal leg 60a has an assembly joint 110 for separating a left portion 112 from a right portion 114. Left portion 112 has a drilled hole with a circular inner surface 118. Right portion 114 has an extension with a circular outer surface 120. There is a very small gap between surfaces 118 and 120. Leg 60a has a cotter pin 116 which passes through portions 112, 114, thereby forming assembly joint 110. It is easier to manufacture embodiment 10a of FIG. 3, as compared to embodiment 10 of FIG. 1, because of the rounded configuration of the external housing making it much simpler and less expensive to fabricate using a mold process than the rectangular housing of FIG. 1. 
     Also, if desired, left portion 112 can be inserted from the left side of wall 20a through opening 56a, and right portion 114 can be inserted through opening 32a into chamber 30a, and the assembly of portions 112 and 114 can be made within chamber 30a. It is also easier to repair and replace part 36a by disassembly of joint 110. 
     Beam 16a has an outer circular portion 68a and an inner tubular portion 70a, which is press fit into hole 108 in support wall 100 and which is joined thereto by an adhesive deposit or fillet weld (not shown). A hole 109 in wall 20a is coaxial with hole 108 in wall 100. 
     Beam 16a has an upper face 72a, which has a bearing recess 74a that receives top portions 64a. Beam 16a also has a lower face 76a which has a cavity 78a, and has a passageway 80a which extends from cavity 78a to an orifice 82a inside chamber 30a. The substance from container 18a, when actuated, passes through passageway 80a and leaves orifice 82a as a spray 81a. 
     Container 18a has a lower can portion 84a which is received in recess 35a, and an upper, spring-biased cap portion 86a which is received in cavity 78a. Another passageway 88a extends through cap portion 86a and connects to passageway 80a. 
     In use, an upward force 44a, applied by hand, pivots L-shaped member 36a causing a downward force 46a, deflecting beam 16a through angle 40a, and acting on top portion 86a, thereby causing a substance from container 18a to pass through passageway 88a, through passageway 80a, and out through orifice 82a, as a spray 81a either on the hands or onto an object held by the hands. 
     While the invention has bee described in its perferred embodiments, it is to be understood that the words which have been used are words of description rather than limitation and that changes may be made within the purview of the appended claims without departing from the true scope and spirit of the invention in its broader aspects. 
     For example, housing 12 can be made of a transparent plastic material or a light weight (i.e. aluminum) metal material. 
     As another example, container 18 can be a pump-type container, instead of an aerosol container. 
     As another example, paper, such as paper tissues or the like, can be held by hand so that a substance can be sprayed into chamber 30 for impregnating the paper. Various substances can be selected to be sprayed onto a person&#39;s hand(s) or an object like a tissue held by hand such as a cleansing substance, a perfume (i.e. aroma producing) type substance, a medicated type substance, etc. 
     As still another example, opening 32a can have a fold-down door and a latch.