Patent Publication Number: US-6709180-B2

Title: Ergonomic wax pen

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to ergonomic finger-held wax dispensers used for depilatory hair removal, dentistry molding, jewelry design, sculpting and other applications requiring finely controlled extrusion of molten wax. 
     Hand-held and finger-held extruders of molten wax are well-known tools for depilatory hair removal, dentistry molding, jewelry design and other applications. An industry has evolved for supplying a variety of wax sticks and rope for different sizes and different constituents of wax used for the different applications. None, however, provide an ergonomically tapered, finger-squeezable, easily heatable, light-weight and versatile adaptive wax pen in a manner taught by this invention. Although intended to be advantageous for many applications, a typical use is for depilatory hair removal. 
     Examples of most-closely related known but different devices are described in the following patent documents: 
     
       
         
           
               
               
               
               
             
               
                   
                   
               
               
                   
                 U.S. Pat. No. 
                 Inventor 
                 Date 
               
               
                   
                   
               
             
            
               
                   
                 6,255,625 
                 Baschenis 
                 07-03-2001 
               
               
                   
                 4,465,073 
                 Schwob 
                 08-14-1984 
               
               
                   
                 5,368,199 
                 Haas, et al. 
                 11-29-1994 
               
               
                   
                 5,346,394 
                 DeStefanis 
                 09-13-1994 
               
               
                   
                 5,848,850 
                 Bontoux, et al. 
                 12-15-1998 
               
               
                   
                 4,712,589 
                 De Gaspari 
                 12-15-1987 
               
               
                   
                 4,218,152 
                 Sloan 
                 08-19-1980 
               
               
                   
                 5,395,175 
                 Bontoux, et al. 
                 03-07-1995 
               
               
                   
                 6,039,482 
                 Smal 
                 03-21-2000 
               
               
                   
                 5,980,536 
                 Jamali 
                 11-09-1999 
               
               
                   
                 6,273,625 
                 Martinez de San Vincente 
                 08-14-2001 
               
               
                   
                   
                 Oliveras 
               
               
                   
                 6,076,984 
                 Legrain, et al. 
                 06-20-2000 
               
               
                   
                 6,053,649 
                 Ronai 
                 04-25-2000 
               
               
                   
                 5,902,060 
                 Rodriguez 
                 05-11-1999 
               
               
                   
                 5,873,666 
                 Bourke, et al. 
                 02-23-1999 
               
               
                   
                   
               
            
           
         
       
     
     Some of the previous wax extruders have required a compressed-air source that is not readily available for home use, for traveler use or for beauty-shop use. Many have inadequately controllable roll-on extrusion. All have been either too bulky or not structured for artistic finger handling. None have had an ergonomic configuration which enhances hand control, diminishes fatigue and enables use by various-stage arthritics that are quite common. None have been easily heatable in homes, in travel, in dental care, in jewelry construction or in other applications of wax extrusion. All have fundamental differences from this invention. 
     SUMMARY OF THE INVENTION 
     Objects of patentable novelty and utility taught by this invention are to provide an ergonomic wax pen which: 
     does not require a compressed-air source for home and travel applications where compressed air is not readily available; 
     includes finger-pumping and motorized-pumping embodiments for professional, high-skill and high productivity applications; 
     is not too bulky for artistic finger handling; 
     has an ergonomic configuration which enhances finger-holding for skillful use and which diminishes fatigue; 
     is easily heatable in homes and in travel; 
     readily accepts application tips for most applications; avoids leakage drip of molten wax; 
     is easily cleaned and maintained; 
     has precisely controllable output, and 
     is readily transportable and storable for personal use. 
     This invention accomplishes these and other objectives with an ergonomic wax pen having an ergonomic case with finger-squeeze control of pressure to force out molten wax from a wax chamber through a wax-extrusion nozzle at an extrusion end to which predetermined application tips can be attached for predetermined wax applications. The ergonomic case includes a contoured taper from a major perimeter proximate the extrusion end to an oppositely disposed minor perimeter that is proximate a base end. A wax heater is positioned externally from the wax chamber which is pressurized selectively with a pressurizer. The base end can include an orthogonal base plate on which the ergonomic case can be positioned uprightly when not in use and with which the ergonomic case can be prevented from rolling when laid down. The contour of the ergonomic case can be optimized for ergonomic handling with finger-controllable size and shape of the major perimeter in structural relationship to a smaller and lighter portion of the minor perimeter. The minor-perimeter portion can be oriented upwards or supported by a user&#39;s hand selectively when extruding wax. A heat gage and a wax-level window can be provided on the ergonomic case. The wax heater can be energized internally with electrical resistance or externally with microwave heat. The pressurizer can include a hand-squeezable ergonomic case, a pneumatic hand pump or a motorized pump. 
    
    
     The above and other objects, features and advantages of the present invention should become even more readily apparent to those skilled in the art upon a reading of the following detailed description in conjunction with the drawings wherein there is shown and described illustrative embodiments of the invention. 
     BRIEF DESCRIPTION OF DRAWINGS 
     This invention is described by appended claims in relation to description of a preferred embodiment with reference to the following drawings which are explained briefly as follows: 
     FIG. 1 is a side elevation view of a microwave-heatable embodiment of the ergonomic wax pen in which a depilatory application tip for lip-hair removal is positioned; 
     FIG. 2 is a side elevation view of an eyebrow depilatory tip for use in the ergonomic wax pen; 
     FIG. 3 is a perspective view of a chin and other-area depilatory tip for use in the ergonomic wax pen; 
     FIG. 4 is a bottom view of the ergonomic wax pen having a circular base plate; 
     FIG. 5 is a bottom view of the ergonomic wax pen having a square base plate; 
     FIG. 6 is a partially cutaway elevation view of the microwave-heatable ergonomic wax pen showing oppositely disposed straight walls that are pressured inwardly for finger-squeeze pressurization; 
     FIG. 7 is a partially cutaway elevation view of the FIG. 6 illustration showing walls orthogonally disposed from the walls that are pressured inwardly; 
     FIG. 8 is a partially cutaway elevation view of the FIG. 6 illustration in which a wax rod is positioned; 
     FIG. 9 is a partially cutaway elevation view of the FIG. 8 illustration in which the wax rod is melted into molten wax and a depilatory tip representative of application tips generally is positioned; 
     FIG. 10 is a partially cutaway elevation view of the FIG. 9 illustration with sides squeezed in part way and part of the molten wax having been squeezed out; 
     FIG. 11 is a partially cutaway elevation view of the FIG. 10 illustration with sides squeezed in nearly all of the way and nearly all of the molten wax having been squeezed out; 
     FIG. 12 is a partially cutaway elevation view of the microwave-heatable ergonomic wax pen having pliable and resilient sides that are pressured inwardly for finger-squeeze pressurization and having a wax rod positioned in it; 
     FIG. 13 is a partially cutaway elevation view of the FIG. 12 illustration showing the pliable and resilient sides squeezed partly inward against molten wax; 
     FIG. 14 is a partially cutaway elevation view of the FIG. 13 illustration with the pliable and resilient sides squeezed in nearly all of the way and nearly all of the molten wax squeezed out; 
     FIG. 15 is a partially cutaway side elevation view of a resistance-heatable embodiment of the ergonomic wax pen in which resistance members are linear for ease of being squeezed inwardly and sides are pliable and resilient; 
     FIG. 16 is a side elevation view of the FIG. 15 illustration in which the sides are squeezed in part way and the linear resistance members are bent inwardly; 
     FIG. 17 is a partially cutaway side elevation view of the FIG. 15 illustration having a side window and a heat register; 
     FIG. 18 is a side elevation view of a microwave-heatable and air-pressurized embodiment of the ergonomic wax pen on a source platform having a hand pump and a finger-squeezable extrusion nozzle; 
     FIG. 19 is a side elevation view of a resistance-heatable and air-pressurized embodiment of the ergonomic wax pen on a source platform having a transfer valve for a remote motorized air pump; 
     FIG. 20 is a side elevation view of the FIG. 19 illustration from which molten wax has been forced out with air pressure against a piston; 
     FIG. 21 is a side elevation view of the ergonomic wax pen with the source platform for controlling both pressure and heat for communication to the ergonomic pen through parallel lines that are shown schematically; 
     FIG. 22 is a partially cutaway fragmentary side view of the extrusion nozzle that includes a dedicated nozzle for directing flow of the molten wax without attachment of an application tip and which is attached detachably to the extrusion end of the ergonomic case having rigid walls for pneumatic pressurization; 
     FIG. 23 is a partially cutaway fragmentary side view of the extrusion nozzle that includes configuration for directing flow of the molten wax without attachment of an application tip and which is attached detachably to the extrusion end of the ergonomic case that is hand squeezable; 
     FIG. 24 is a partially cutaway fragmentary side view of the extrusion nozzle that includes configuration for directing flow of the molten wax without attachment of an application tip and which is an integral part of the extrusion end of the ergonomic case that is hand squeezable; and 
     FIG. 25 is a perspective view of the ergonomic wax pen in a compact container for optionally travel, convenient storage or sales packaging. 
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
     Listed numerically below with reference to the drawings are terms used to describe features of this invention. These terms and numbers assigned to them designate the same features throughout this description. 
     
       
         
           
               
               
               
             
               
                   
                   
               
             
            
               
                   
                  1. 
                 Ergonomic case 
               
               
                   
                  2. 
                 Major periphery 
               
               
                   
                  3. 
                 Extrusion end 
               
               
                   
                  4. 
                 Minor periphery 
               
               
                   
                  5. 
                 Base end 
               
               
                   
                  6. 
                 Wax chamber 
               
               
                   
                  7. 
                 Molten wax 
               
               
                   
                  8. 
                 Waxrod 
               
               
                   
                  9. 
                 Outlet aperture 
               
               
                   
                 10. 
                 Case sides 
               
               
                   
                 11. 
                 Base plate 
               
               
                   
                 12. 
                 Source platform 
               
               
                   
                 13. 
                 Round base plate 
               
               
                   
                 14. 
                 Rectangular base plate 
               
               
                   
                 15. 
                 Chamber walls 
               
               
                   
                 16. 
                 Fixed chamber walls 
               
               
                   
                 17. 
                 Insulating cover 
               
               
                   
                 18. 
                 Linear wire 
               
               
                   
                 19. 
                 Helical wire 
               
               
                   
                 20. 
                 Electrical connection 
               
               
                   
                 21. 
                 Dedicated nozzle 
               
               
                   
                 23. 
                 Screw thread 
               
               
                   
                 24. 
                 Lip tip 
               
               
                   
                 25. 
                 Eyebrow tip 
               
               
                   
                 26. 
                 Chin tip 
               
               
                   
                 27. 
                 Pointed tip 
               
               
                   
                 28. 
                 Broad tip 
               
               
                   
                 29. 
                 Storage case 
               
               
                   
                 30. 
                 Mating screw thread 
               
               
                   
                 31. 
                 Pressurizer piston 
               
               
                   
                 32. 
                 One-way inlet valve 
               
               
                   
                 33. 
                 Inlet valve spring 
               
               
                   
                 34. 
                 Internal threads 
               
               
                   
                 35. 
                 Valve-attachment structure 
               
               
                   
                 36. 
                 Valved extrusion nozzle 
               
               
                   
                 37. 
                 Case-attachment structure 
               
               
                   
                 38. 
                 Flow-control valve 
               
               
                   
                 39. 
                 Valve inlet aperture 
               
               
                   
                 40. 
                 Valve outlet aperture 
               
               
                   
                 41. 
                 Nozzle outlet aperture 
               
               
                   
                 42. 
                 Valve plunger 
               
               
                   
                 43. 
                 Plunger sleeve 
               
               
                   
                 44. 
                 Squeeze member 
               
               
                   
                 45. 
                 Extrusion spring 
               
               
                   
                 46. 
                 Hand pump 
               
               
                   
                 47. 
                 Spring-return piston 
               
               
                   
                 48. 
                 Pump plunger 
               
               
                   
                 49. 
                 Inlet valve 
               
               
                   
                 50. 
                 Ambient aperture 
               
               
                   
                 51. 
                 Plunger tube 
               
               
                   
                 52. 
                 Pressure inlet 
               
               
                   
                 53. 
                 Valve chamber 
               
               
                   
                 54. 
                 One-way valve 
               
               
                   
                 55. 
                 Plunger tube 
               
               
                   
                 56. 
                 Pressure adaptor 
               
               
                   
                 57. 
                 Remote air compressor 
               
               
                   
                 58. 
                 Pressure conveyance 
               
               
                   
                 59. 
                 Current adaptor 
               
               
                   
                 60. 
                 Electrical conduit 
               
               
                   
                 61. 
                 Heat gauge 
               
               
                   
                 62. 
                 Wax-level window 
               
               
                   
                 63. 
                 Nozzle threads 
               
               
                   
                   
               
            
           
         
       
     
     Referring to FIGS. 1-14, the ergonomic wax pen includes an ergonomic wax case  1  having a contoured taper intermediate a major periphery  2  proximate an extrusion end  3  and a minor periphery  4  proximate a base end  5 . The contoured taper is structured for ergonomic finger-and-thumb handling of a size and shape of a major-periphery portion in structural relationship to a smaller and lighter minor-periphery portion that can be oriented selectively or supported by a user&#39;s hand when in use. 
     A wax chamber  6  is positioned predeterminedly intermediate the base end  5  and the extrusion end  3  of the ergonomic case  1 . A wax heater is positioned externally from the wax chamber  6  for melting wax into molten wax  7  in the wax chamber  6  from commercially supplied wax rod  8  as shown in FIG.  8 . before being melted into the molten wax  7  shown in FIGS. 9-11,  13 - 14  and  20 - 21 . The wax chamber  6  has an outlet aperture  9  proximate an extrusion end of the wax chamber  6 . The wax pen may be refillable for reuse or made disposable for one-time use. 
     The wax heater for melting wax in the wax chamber  6  in the embodiments shown in FIGS. 1,  6 - 14  and  23 - 24  includes case sides  10  that are finger-squeezable resilient and microwave tolerant for being also an extrusion pressurizer for applying extrusion pressure for forcing the molten wax  7  out of the wax chamber  6  through the outlet aperture  9 . 
     An extrusion nozzle is positioned proximate the outlet aperture  9 . The extrusion nozzle includes an application tip that can be attached removably to render the ergonomic wax pen useable for wax extrusion generally or that can be attached permanently for dedicated uses. Depilatory use of the ergonomic wax pen is shown primarily, but dental, jewelry and artistic uses are equally intended, applicable and foreseeable. 
     A base plate  11  proximate the base end  5  is orthogonal to an axis of the ergonomic case  1 . The base plate  11  is an upright stand which eliminates nozzle molten-wax leaks for hand-squeezable embodiments and diminishes it for pneumatic-pressured embodiments. In addition, upright positioning with the base plate  11  enhances ease of use, provides a pneumatic connection to a source platform  12  shown in FIGS. 18-21 as described later. The base plate  11  can be a round base plate  13  as shown in FIG. 4 or a rectangular base plate  14  as shown in FIG.  5 . The rectangular base plate  14  prevents rolling when the ergonomic pen is laid down horizontally. 
     Sizes and proportions of the major periphery  2  and the minor periphery  4  of the ergonomic wax pen can be varied for different users and for different uses. It is recommended that a plurality of sizes and proportions, preferably at least three variations, be manufactured and marketed for different applications and for users with different hand sizes and sense of control of the ergonomic wax pen. 
     Generally but not necessarily, therefore, the major periphery  2  of the contoured taper of the ergonomic case  1  includes a predetermined cross-sectional distance within a range of one-half-to-one inch. The minor periphery  4  of the contoured taper of the ergonomic case  1  includes a predetermined cross-sectional distance within a range of one-quarter-to-three-eighths of one inch. The contoured taper of the ergonomic case  1  has a length within a range of three-to-eight inches intermediate a largest peripheral portion of the major periphery  2  and a smallest peripheral portion of the minor periphery  4 . A preferred cross-sectional distance of the base plate  11  is slightly longer than a cross-sectional distance of the widest portion of the major periphery  2 . 
     For the embodiment of the ergonomic wax pen having a pressurizer that employs finger-squeeze pressurization of the molten wax  7  as shown in FIGS. 1,  6 - 17  and  23 - 24 , the ergonomic case  1  proximate the wax chamber  6  includes case sides  10  that are resilient. The wax chamber  6  is structured to receive a predetermined wax rod  8  through a base-plate end of the wax chamber  6 . The base plate  11  includes sealing engagement with the base end of the wax chamber  6  with detachable attachment of the base plate  11  to the base end  5  of the ergonomic case.  1 . The ergonomic case  1  includes chamber walls  15  of the wax chamber  6  that are microwave tolerant for transferring microwave heat to the wax rod  8  in the wax chamber  6 . 
     Optionally, the chamber walls  15  can include two oppositely disposed walls that are forced inwardly between fixed chamber walls  16  as shown in FIGS. 6-7 for finger-squeeze pressurization. 
     As shown in FIGS. 6-11, an insulating cover  17  on the ergonomic case  1  can be included, particularly for embodiments that microwave-heat the wax rod  8 . 
     Referring to FIGS. 15-16 and  19 - 21 , the case sides  10  can include electrical-resistance material for resistance heating the wax chamber  6  to melt the wax rod  8 . For finger-squeeze embodiments having resistance heating, as shown in FIGS. 15-16, the electrical-resistance material can include linear wire  18  that is pliable linearly along the wax chamber  6  for allowing inward-squeeze pressure to be applied to the case sides  10  proximate the wax chamber  6  and to the electrical-resistance material. For rigid-case embodiments having resistance heating material as shown in FIGS. 19-21, the electrical-resistance material can include helical wire  19  that is not squeezed inwardly. 
     The ergonomic case  1  includes an electrical connection  20  for transmission of electrical current to whatever form or shape of the electrical-resistance material may be employed for receiving current from an electrical source. 
     Referring to FIGS. 22-24, the extrusion nozzle can include a dedicated nozzle  21  having predetermined configuration for directing flow of the molten wax  7  from the wax chamber  6 . The dedicated nozzle  21  can be structured for a particular application for users who do not prefer a variety of application tips or who prefer a particular form of the dedicated nozzle  21 . A plain conical tip is illustrated to represent either of a variety of applications for which the dedicated nozzle  21  can be structured. It can be used on either form of pressurization and wax-heating or on any combination thereof that is made possible by the ergonomic wax pen. The dedicated nozzle  21  also can be attached detachably with nozzle threads  63  as depicted in FIGS. 22-23 or affixed permanently as depicted in FIG.  24 . 
     Referring to FIGS. 6-16 and  18 - 22 , the outlet aperture  9  can include screw thread  23  or other attachment structure for attachment of application tips having predetermined configuration for directing flow of the molten wax  7 . Jewelry, dentistry and art application tips are represented by depilatory tips that include a lip tip  24  having an arcuately faced triangular outlet as shown in FIGS. 1 and 25, an eyebrow tip  25  having a slanted circular outlet as shown in FIGS. 2,  9 - 21  and  25 , and a chin tip  26  having an arcuately faced rectangular outlet as shown in FIGS. 3 and 25. The eyebrow tip  25  is shown with the embodiments in FIGS. 9-21 for representing application tips generally. A pointed tip  27  and a broad tip  28  are shown in a storage case  29  in FIG. 25 as also representative of application tips generally. 
     Application tips can have mating screw thread  30  for being screwed into the screw thread  23  as depicted in FIGS. 1-3,  9 - 21  and  25 . 
     Referring to FIGS. 18-21, embodiments of the ergonomic wax pen having pneumatic pressurization include the ergonomic case  1  and walls of the wax chamber  6  that are rigid. The wax chamber  6  is structured to receive the wax rod  8  and a pressurizer piston  31  through either end of the wax chamber  6 . This allows the wax chamber  6  to be cleaned easily when needed and allows easy access to the pressurizer piston  31  by blowing it through or pushing it through the wax chamber with the wax rod  8  or with a pencil-like instrument. 
     The pressurization piston  31  has sliding-seal contact with an inside periphery of the wax chamber  6 . The base plate  11  includes a one-way inlet valve  32  in inlet-valve communication from a source of compressed air to the wax chamber  6 . The one-way inlet valve  32  can include a small coned member that is pressured against a valve seat with an inlet valve spring  33  that preferably is a conically helical spring that is anchored upwardly as shown. The source of compressed air preferably includes the source platform  12  on which the base plate  11  rests in a horizontal orientation with the ergonomic case  1  in an upright orientation in a non-use mode. 
     The minor periphery  4  of the ergonomic case  1  preferably includes internal threads  34  that mate with threads on a valve sleeve extended from the base plate  11  proximate an entrance to the wax chamber  6  for attaching the base plate  11  in sealing contact with the base end  5  of the wax chamber  6 . 
     The extrusion end  3  of the ergonomic case  1  includes nozzle-attachment threads on valve-attachment structure  35  for attachment of a valved extrusion nozzle  36 . The valved extrusion nozzle  36  includes mating threads on case-attachment structure  37  for attachment to the extrusion end  3  of the ergonomic case  1 . 
     The valved extrusion nozzle  36  includes a flow-control valve  38  that is finger-squeeze controllable for allowing squeeze-released amounts of molten wax  7  to egress and to prevent ingress of the molten wax  7  through the valved extrusion nozzle  36 . The flow-control valve  38  includes a truncate cone that fits in a concave cone seat as depicted. The truncate cone and the concave cone seat have concentric axes that are orthogonal to an axis of the ergonomic case  1 . The concave cone seat includes a valve inlet aperture  39  in fluid communication from the wax chamber  6  and a valve outlet aperture  40  in fluid communication from the concave cone seat to a nozzle outlet aperture  41  in the dedicated nozzle  21  or into nozzle outlet aperture  41  having screw thread  23  into which application tips having mating screw thread  30  are screwed. The valve inlet aperture  39  and the valve outlet aperture  40  have axes that are orthogonal to the axes of the truncate cone and the concave cone seat. 
     The truncate cone includes a valve plunger  42  extended axially from a truncate end of the truncate cone. The valve plunger  42  is in sliding-seal contact with an inside periphery of a plunger sleeve  43 . A squeeze member  44  is positioned proximate a terminal end of the valve plunger  42 . The truncate cone is spring-pressured in a direction of the squeeze member  44  with an extrusion spring  45 . 
     The valve outlet aperture  40  includes predetermined configuration for directing flow of the molten wax from the valved extrusion nozzle  36 . 
     The predetermined configuration for directing flow of the molten wax from the valved extrusion nozzle  36  includes the screw thread  23  shown in FIGS. 6-8 for attachment of predetermined application tips. 
     The ergonomic case  1  and the walls of the wax chamber  6  can be microwave tolerant for transferring microwave heat to the wax rod  8  in the wax chamber  6  from a microwave oven which is not shown. Optionally, the walls of the wax chamber  6  can include electrical-resistance material for resistance heating the wax chamber  6  to melt the wax rod  8 . For resistance heating, the ergonomic case  1  includes the electrical connection  20  for transmission of electrical current to the electrical-resistance material from an electrical source. 
     The wax chamber  6  preferably includes compressed-air space intermediate the pressurizer piston  31  and the base end  5  of the wax chamber  6  for containing an amount of air pressure from the source of compressed air for forcing the pressurizer piston  31  against the molten wax  7  for extruding an amount of the molten wax  7  from the wax chamber  6  through the valved extrusion nozzle  36 . The amount of molten wax  7  extruded is determined by length of time, distance of squeeze of the squeeze member  44  on the valve plunger  42  and amount of air pressure in the wax chamber  6 . 
     As shown in FIG. 18, the source of compressed air can include a hand pump  46  having a spring-return piston  47  that is attached to a pump plunger  48  that can be engaged by the base plate  11  on the source platform  12 . An inlet valve  49  allows inlet of air from an ambient aperture  50 . Air pressured from pushing down on the ergonomic case  1  and the base plate  11  a few times when needed travels through a plunger tube  51  and past the one-way inlet valve  32  to the wax chamber  6  below the pressurizer piston  31 . 
     As shown in FIGS. 19-20, the source of compressed air can include motorization that is remote from the source platform  12  which has a pressure inlet  52  to a valve chamber  53  having a one-way valve  54  to a plunger tube  55  in communication with the one-way inlet valve  32  for allowing remotely compressed air to enter the wax chamber  6  by downward actuation of the base plate  11  with downward pressure on the ergonomic case  1 . 
     As shown in FIG. 21, the source of compressed air can include a pressure adaptor  56  for adapting a rate of flow of compressed air from a remote air compressor  57  to a predetermined rate of flow of the compressed air for communication from the source platform  12  to the wax chamber  6  in a predetermined pressure conveyance  58 . 
     As shown further in FIG. 21, the source platform  12  can include a current adaptor  59  for adaptation and direction of electrical current for transmission from the electrical connection  20  in a predetermined electrical conduit  60  to the resistance heater which includes the helical wire  19  surrounding the wax chamber  6 . 
     The pressure conveyance  58  for conveyance of the compressed air to the wax chamber  6  and the electrical conduit  60  for transmission of electrical current to the resistance heater can be sized, shaped and juxtaposed predeterminedly intermediate the source platform  12  and the ergonomic case  1  for ease and convenience of use of the ergonomic wax pen. 
     Referring to FIGS. 1 and 17, the ergonomic case  1  can include a heat gauge  61  in communication with heat of the molten wax  7  in the wax chamber  6 . Also included in the ergonomic case  1  can be a wax-level window  62  linearly along the wax chamber  6 . 
     A new and useful ergonomic wax pen having been described, all such foreseeable modifications, adaptations, mathematical possibilities of combinations of parts, pluralities of parts, applications and forms thereof as described by the following claims and not precluded by prior art are included in this invention.