Abstract:
A cutting apparatus for trimming an article, the apparatus has a manually grasped power element with a reciprocating arm having a removably engagable rotatable couple including a selectable rotational index position lock. Also included is a cutting head assembly that is removable and rotationally indexable relative to the power element, the cutting head having a pair of cutting blades for trimming the article. Wherein operationally, the reciprocating arm drives the cutting blades that have scissor movement with the cutting head selectably rotatable to the power element, user wrist fatigue is reduced, also with the cutting head being removable from the power element, the cutting head assembly is easier to clean.

Description:
RELATED PATENT APPLICATION 
     This application claims the benefit of U.S. provisional patent application Ser. No. 61/976,503 filed on Apr. 8, 2014 by Terry Sandefur of Bayfield, Colo., U.S. 
    
    
     TECHNICAL FIELD 
     The present invention relates generally to a cutting apparatus that is hand held for the purpose of trimming off selected parts of an article. More particularly, the present invention of the cutting apparatus has powered cutting blades that are axially pivotable about a cutting head for hand held comfort and the cutting blades are removable for cleaning stemming from article contamination of the cutting blades. 
     BACKGROUND OF INVENTION 
     Trimming an article can be a tedious and boring process, especially when a high number of repetitive cuts need to be made, even with the use of a powered cutter, the constant re-positioning of the powered cutter can lead to operator hand and wrist fatigue in having issues similar to the well-known carpal-tunnel syndrome from a high number of repetitive hand and wrist motions. Another issue can be the oil or tar resin present in the article that can gum up the cutting blades of the cutting apparatus, requiring frequent blade cleaning. Most cutting apparatus are designed for general use in that they can be applied to a number of different cutting uses, from fabric, to sheet steel, to wire mesh, to plant and tree pruning, to paper, to hair, to cardboard, to wood sheeting, and so on. Each one of these cutting apparatus uses ideally has specialized cutting blades, i.e. sharpness, clearance, blade cutting pattern, material of the cutting blade, speed of the cutting blades coming together, the force of the blades coming together, the angle that the blades come together, how tightly clamped the blades are to one another at their mutual pivot point, and so on. 
     However, there are additional issues with the cutting apparatus outside of the cutting blade specifics described above that concern user or operator fatigue, as most cutting apparatus tasks are limited in the amount of time or the amount of cutting that is done, i.e. cutting fabric for a single sewing project, this issue of operator fatigue is typically not addressed. This is mostly due to the fact that when a large amount of cutting is required, such as the mass production of clothing in manufacturing thus requiring many thousands of clothing items with the required fabric cutting being done on a large scale would be partially or totally automated, not only to save time, but to ensure constant repetitive quality in the fabric cutting. Thus, when the cutting situation arises wherein one would have the need to do fairly high volumes of repetitive cutting, however, not enough cutting volume to justify automation, the problem arises of operator fatigue is using for instance a handheld cutting apparatus and doing a high number of repetitive cutting motions. 
     This leads to the need for design modifications to reduce operator fatigue in using the handheld cutting apparatus for highly repetitive cutting motions, these design modifications would include ways to minimize fixed hand and wrist positioning, i.e. facilitating a variety of different hand and wrist motions for accomplishing the same cutting function. Further, structure to make separable blade cleaning easy, as this is mostly an issue with the article to be trimmed is of an organic nature and can leave a residue on the cutting blade during use that can act to impair the cutting blades efficiency and increase friction as between the blades, thus overloading the drive motor. 
     In looking at the prior art in U.S. Pat. No. 3,631,596 to Glaus, disclosed is an electric scissors assembly having a stationary blade and an independently oscillating blade driven by a motor, all mechanical and electrical parts, particularly the scissors, motor and battery being accommodated and mounted in a handle-shaped casing made of two assembled parts of plastic material without any screw-fastened portions by means of elastic portions latched to the casing, and all of the mechanical and electrical parts being readily exchangeable. Glaus has a Teflon slider ring  10  that is inserted between the cutting blades to reduce friction thus reducing motor power required therethrough the eccentric motor drive  23 , requiring minimal space, see  FIGS. 2 and 3 . In Glaus, the focus is upon the mechanism of the scissors having ease of assembly and disassembly, wherein the scissors cutting head and the motor/drive mechanism are a single assembly, as best shown in  FIGS. 1 and 3 . Glaus has no teaching relative to an axially pivoting scissors head that is independently removable. 
     Continuing in the prior art in United States Patent Application Number 2013/0247384 to Ishiguro, disclosed is an electric scissor that is provided with; a moving first blade, a moving second blade, a toggle link mechanism including a first link, a second link, and a drive shaft; and a drive section. In Ishiguro, one end of the first link is rotatably connected to a transmission portion of the first blade and one end of the second link is rotatably connected to a transmission portion of the second blade. Ishiguro has the other end of the first link rotatably connected to the other end of the second link through the drive shaft. The drive section in Ishiguro is configured to open/close the first blade and the second blade by displacing the drive shaft in a direction perpendicular to an axial direction of the drive shaft. The toggle link mechanism in Ishiguro has the advantage of increasing the mechanical advantage of the cutting blade to cutting blade closing force as the cutting blades are drawn closer together, thus according to Ishiguro added cutting force between the blades in created when it is needed most, being near the end of the cut, i.e. specifically for tree branch pruning. The drawback of the Ishiguro toggle link mechanism is in its size, requiring a significant amount movement space as shown in  FIGS. 1, 2, 4, and 5 . The increasing mechanical advantage of the toggle link can best be seen in going from  FIG. 1  to  FIG. 2 , and the graph in  FIG. 3 . Ishiguro also has no teaching relative to an axially pivoting scissors head that is independently removable. 
     Further, in the prior art in U.S. Pat. No. 3,693,254 to Salonen disclosed is a portable, hand-held shearing implement, which includes a pair of cutting blades employing a motor powered mechanism to apply the cutting force, Salonen having a similar toggle link blade cutting mechanism to Ishiguro thus providing for increased mechanical advantage in proportion to the closing of the blades together. The invention in Salonen is particularly adaptable for an implement to execute individual, deliberate, cutting strokes, i.e. such that a single “cut” can be selectably executing such that the cutting blades are just moved together a single time as desired, this is as opposed to most powered cutting blades that of necessity continuously move together and apart from one another, wherein a single selectable blade cut cannot be executed. 
     One version in Salonen may be powered by an electric motor or a self-contained internal combustion engine, driving through a gear reduction train to a reciprocatory mechanism having threaded means with a releasable coupling to drive the power stroke. Another version in Salonen employs a controllable reversing switch to effect the reciprocative action and is limited to an electric motor drive. In the former version of Salonen, reopening of the blades is spring actuated with provision included to soften the impact of termination, and includes a triggering means to stop and hold the reciprocative action after each cycle until released by trigger actuation. Also Salonen also has no teaching relative to an axially pivoting scissors head that is independently removable. 
     Moving onward in the prior art in United States Patent Application Number 2013/0000130 to Maniwa disclosed are electric scissors, a rotating motion of a motor is converted into a linear motion, and a link mechanism is operated to open and close blades by the linear motion, again wherein the closing force is increased when the blades are moved toward one another, similar to Ishiguro and Salonen. The electric scissors in Maniwa include a current control unit that controls an electric current value to the motor, and a detection unit that detects that an angle between the blades becomes a predetermined angle. 
     The current control unit in Maniwa changes an upper limit of the electric current value to be supplied to the motor when the detection unit detects that the angle between the blades becomes the predetermined angle, thus resulting in blade closing force control via motor current control and not having to have excessively strong linkage and blade components that would be required otherwise similar to the linkage action of bolt cutters that must withstand very high near blade closing cutting forces. Further, Maniwa also has no teaching relative to an axially pivoting scissors head that is independently removable. 
     Continuing, in the prior art in U.S. Pat. No. 3,787,742 to Murphy disclosed is an electric shear assembly in which there is provided a housing having swingably interconnected first and second cutting blades mounted therein and projecting outwardly therefrom. In Murphy, a gear train is mounted within the housing and is interconnected between a reversible electric motor and a second blade for moving the second blade with respect to said first blade, i.e. such that only the second blade is moving. Also in Murphy a manually manipulatable switch assembly is mounted on the housing and is coupled through a second switch assembly for actuating the motor to drive the gear train in a first direction to cause the cutting blades to open and close. 
     Further in Murphy a cam driven by the gear train is engagable with the second switch assembly for selectively opening and closing the assembly to control the motor to drive the gear train in a second direction for an interval sufficient to position the cutting blades in an open position and deactuate said motor. In Murphy a cam type arrangement is used to transmit motor rotational action to closing pivotal movement of the blade, requiring a motor to be reversible to go from blade closing movement to blade opening movement, wherein the blade closing movement for instance can be selectively stopped at any point to help prevent a finger injury from the closing blade, and by having a slow moving cutting stroke. Also, Murphy also has no teaching relative to an axially pivoting scissors head that is independently removable. 
     What is needed is a cutting apparatus that can accommodate on a functional output basis a high number of similar cutting tasks, however, without imparting excessive fatigue upon the operator of the cutting apparatus. Thus would be accomplished by de-coupling or buffering the functional end task of the cutting blades from the hand and wrist movement required of the cutting apparatus operator through variable structure to alter positional orientations as between the cutting blades and the operator&#39;s hand and wrist. Further desired would be structure to allow easy cleaning of the cutting blades to be able to keep them at their optimum cutting efficiency. 
     SUMMARY OF INVENTION 
     Broadly, the present invention is a cutting apparatus for trimming a selected portion from an article, the cutting apparatus including a power element that has a first end portion and an opposing second end portion with a longitudinal axis spanning therebetween. Wherein the first end portion has a reciprocating arm with a reciprocating movement and the second end portion is adapted to be grasped by a manual user&#39;s hand. The reciprocating arm having a first removably engagable rotatable couple with an annulus that is about the longitudinal axis and the first end portion having a first removably engagable interface structure. Further included in the cutting apparatus is a removable coupling having a primary end portion and an opposing secondary end portion with a lengthwise axis spanning therebetween, the primary end portion has a removably engagable rotatable couple second interface and the secondary end portion having a first slotted pivotal aperture. 
     Wherein the coupling transmits the reciprocating arm movement, also positionally the lengthwise axis and the longitudinal axis are coincident to one another. Further included is a removable cutting head assembly having a proximal end portion and an opposing distal end portion with a long axis spanning therebetween. The proximal end portion includes a fourth removable engagable interface structure that removably engages with the first removable engagable structure, the distal end portion having a pair of cutting blades that each have a free end portion and an opposing linkage first pivotal connection with a mid-blade section therebetween. The mid-blade portions have the first pivotal connection to one another, wherein the first pivotal connection has a first pivotal axis, the cutting blade free end portions having a scissor type movement in a first plane. 
     Wherein the first pivotal connection is attached to the cutting head assembly distal end portion through a rotatable pivot head, the pair of intermediate linkages each have a second pivotal connection, the pair of intermediate linkages are also pivotally attached to a third pivotal connection of the removable coupling first slotted pivotal aperture. 
     Operationally, the reciprocating arm drives through the removable coupling to the pair of intermediate linkages and the cutting blades such that the cutting blade free end portions have the scissor movement from the first pivotal connection to the cutting blade free ends that are functional to cut the article. Further the cutting head assembly is selectably rotatable in a circular movement in an indexable rotationally locked manner about the longitudinal axis. Thus allowing the first, second, and third pivotable axes to rotate about the longitudinal axis allowing the scissor type movement in the first plane to be selectively rotatable about the longitudinal axis, further the cutting head assembly and the coupling are removably engagable from the power element for cleaning. 
     These and other objects of the present invention will become more readily appreciated and understood from a consideration of the following detailed description of the exemplary embodiments of the present invention when taken together with the accompanying drawings, in which; 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  shows a perspective view of the cutting apparatus that includes a power element, a first end portion of the power element, a second end portion of the power element, a portion of the power element adapted to be grasped by a user&#39;s hand, a longitudinal axis of the power element with a first removably engagement structure that is interfaced with a fourth removably engagable interface structure of a removable cutting head assembly that has a rotatable pivot head, plus a means for selectable rotationally locking a circular movement of the rotatable pivot head, also shown are the cutting blades, and the light beam with the third aperture; 
         FIG. 2  shows cross section  2 - 2  from  FIG. 9 , giving detail of the power element first end portion with a reciprocating arm having reciprocating movement as driven by the electric drive motor, a rotational axis of the motor, an eccentric element, a rotational coupling of the electric drive motor to the eccentric element, a connecting rod, a reciprocating arm that is slidably engaged to a bushing guide, and the first removably engagable interface structure; 
         FIG. 3  shows cross section  2 - 2  from  FIG. 1 , essentially showing a ninety degree rotated view from  FIG. 2 , wherein  FIG. 3  shows detail of the power element first end portion with the reciprocating arm having reciprocating movement as driven by the electric drive motor, the rotational axis of the motor, the eccentric element, the connecting rod, the reciprocating arm that is slidably engaged to the bushing guide, and the first removably engagable interface structure; 
         FIG. 4  is cross section  4 - 4  from  FIG. 1  showing the removable cutting head assembly, the distal end portion of the cutting assembly, the proximal end portion of the cutting assembly, the movement of the reciprocating arm from the power element, the reciprocating arm, the longitudinal axis of the power element, the lengthwise axis of the coupling, the coincident position of the lengthwise axis and the longitudinal axis, the first end portion of the power element, the removable coupling, the primary end portion of the coupling, the secondary end portion of the coupling, a second interface for the first removably engagable rotatable couple, the means for selectable rotationally locking the circular movement, the fourth removably engagable interface structure, a second interface of the removable coupling, a first slotted pivotal aperture of the removable coupling, a third pivotal connection, a pair intermediate linkages, a mid blade section of the cutting blades, the transmission of the reciprocating axial force movement from the reciprocating arm, to the removable coupling, to the pair intermediate linkages at the third pivotal connection, to the second pivotal connection to the mid-blade section of the cutting blades, through a first pivotal connection, and finally to the pair of cutting blades that creates scissors type movement at the free end portion of the cutting blades, and the circular rotational movement about the longitudinal axis for the rotatable pivot head; 
         FIG. 5  is cross section  5 - 5  from  FIG. 1  essentially showing  FIG. 4  rotated ninety degrees, with  FIG. 5  showing the removable cutting head assembly, the distal end portion of the cutting assembly, the proximal end portion of the cutting assembly, the movement of the reciprocating arm from the power element, the reciprocating arm, the longitudinal axis of the power element, the lengthwise axis of the coupling, the coincident position of the lengthwise axis and the longitudinal axis, the first end portion of the power element, the removable coupling, the primary end portion of the coupling, the secondary end portion of the coupling, a second interface for the first removably engagable rotatable couple, the means for selectable rotationally locking the circular movement and the flexible extension, the fourth removably engagable interface structure, a second interface of the removable coupling, a first slotted pivotal aperture of the removable coupling, a third pivotal connection, a pair intermediate linkages, a mid blade section of the cutting blades, the transmission of the reciprocating axial force movement from the reciprocating arm, to the removable coupling, to the pair intermediate linkages at the third pivotal connection, to the second pivotal connection to the mid-blade section of the cutting blades, through a first pivotal connection, and finally to the pair of cutting blades that creates scissors type movement at the free end portion of the cutting blades that extend in a flat first plane, and the circular rotational movement about the longitudinal axis for the rotatable pivot head; 
         FIG. 6  is cross section  6 - 6  from  FIG. 1  essentially showing  FIG. 4  rotated ninety degrees, with  FIG. 6  showing the removable cutting head assembly, the distal end portion of the cutting assembly, the proximal end portion of the cutting assembly, the movement of the reciprocating arm from the power element, the reciprocating arm, the longitudinal axis of the power element, the lengthwise axis of the coupling, the coincident position of the lengthwise axis and the longitudinal axis, the first end portion of the power element, the removable coupling, the primary end portion of the coupling, the secondary end portion of the coupling, a second interface for the first removably engagable rotatable couple, the means for selectable rotationally locking the circular movement and the flexible extension, the fourth removably engagable interface structure, a second interface of the removable coupling, a first slotted pivotal aperture of the removable coupling, a third pivotal connection, a pair intermediate linkages, a mid blade section of the cutting blades, the transmission of the reciprocating axial force movement from the reciprocating arm, to the removable coupling, to the pair intermediate linkages at the third pivotal connection, to the second pivotal connection to the mid-blade section of the cutting blades, through a first pivotal connection, and finally to the pair of cutting blades that creates scissors type movement at the free end portion of the cutting blades that extend in an arcuate first plane, and the circular rotational movement about the longitudinal axis for the rotatable pivot head; 
         FIG. 7  is cross section  7 - 7  from  FIG. 10  showing the cutting head assembly, the distal end portion of the removable cutting assembly, the proximal end portion of the cutting assembly, the movement of the reciprocating arm from the power element, the reciprocating arm, the longitudinal axis of the power element, the lengthwise axis of the coupling, the coincident position of the lengthwise axis and the longitudinal axis, the first end portion of the power element, the removable coupling, the primary end portion of the coupling, the secondary end portion of the coupling, a second interface for the first removably engagable rotatable couple, the means for selectable rotationally locking the circular movement and the flexible extension, the fourth removably engagable interface structure, a second interface of the removable coupling, a first slotted pivotal aperture of the removable coupling, a sixth pivotal connection, a reciprocating cutting blade with transversely positioned reciprocating cutting teeth, the transmission of the reciprocating axial force movement from the reciprocating arm, to the removable coupling, to the reciprocating cutting blade through a slidable engagement in the retainer head, and finally to the transversely positioned reciprocating cutting teeth that have reciprocating movement at their cantilever end portion, and the circular rotational movement about the longitudinal axis for the rotatable retainer head, further shown are a plurality of transversely positioned static cutting teeth; 
         FIG. 8  is cross section  8 - 8  from  FIG. 10  essentially showing  FIG. 7  rotated ninety degrees, with  FIG. 8  showing the removable cutting head assembly, the distal end portion of the cutting assembly, the proximal end portion of the cutting assembly, the movement of the reciprocating arm from the power element, the reciprocating arm, the longitudinal axis of the power element, the lengthwise axis of the coupling, the coincident position of the lengthwise axis and the longitudinal axis, the first end portion of the power element, the removable coupling, the primary end portion of the coupling, the secondary end portion of the coupling, a second interface for the first removably engagable rotatable couple, the means for selectable rotationally locking the circular movement and the flexible extension, the fourth removably engagable interface structure, a second interface of the removable coupling, a first slotted pivotal aperture of the removable coupling, a sixth pivotal connection, a reciprocating cutting blade with transversely positioned reciprocating cutting teeth (not shown), the transmission of the reciprocating axial force movement from the reciprocating arm, to the removable coupling, to the reciprocating cutting blade through a slidable engagement in the retainer head, and finally to the transversely positioned reciprocating cutting teeth (not shown) that have reciprocating movement at their cantilever end portion, and the circular rotational movement about the longitudinal axis for the rotatable retainer head, further shown is the static cutting blade with its transversely positioned static cutting teeth (not shown), wherein the static cutting blade is retained in a cap that is rotatably pinned to the rotatable retainer head through a plurality of mating channels; 
         FIG. 9  shows a use drawing of the cutting apparatus with a manual user using their hands from their wrists to manually grasp the second end portion of the power element of the cutting apparatus while using their other hand to grasp the article to be trimmed in a selected portion location using the pair of open cutting blades with their scissor type movement; 
         FIG. 10  shows a use drawing of the cutting apparatus with a manual user using their hands from their wrists to manually grasp the second end portion of the power element of the cutting apparatus while using their other hand to grasp the article to be trimmed in a selected portion location using the reciprocating cutting blade transversely positioned cutting teeth sliding against the static cutting blade transversely positioned cutting teeth with their combined hedge trimmer type movement; and 
         FIG. 11  shows an electrical schematic diagram of circuitry for the cutting apparatus that is positioned in  FIGS. 2 and 3 ; the circuitry shown includes the lights, the motor, and the normally open switch, plus other components that are known in the art. 
     
    
    
     REFERENCE NUMBERS IN DRAWINGS 
     
         
           50  Cutting apparatus 
           55  Manual user of the cutting apparatus  50   
           60  Hand of the user  55   
           65  Wrist of the user  55   
           70  Article 
           75  Trimming the article  70   
           80  Selected portion of the article  70  to be trimmed  75   
           85  Power element 
           90  First end portion of the power element  85   
           95  Second end portion of the power element  85   
           100  Adapting to be grasped by the user&#39;s hand  60  of the second end portion  95   
           105  Longitudinal axis of the power element  85   
           110  Reciprocating arm of the power element  85   
           115  Annulus of the reciprocating arm  110   
           120  Cantilever section of the reciprocating arm  110   
           125  Opposing end portion of the cantilever section  120  of the reciprocating arm  110   
           130  Bushing guide affixed to the second end portion  95   
           135  Slidable engagement of the reciprocating arm  110  to the bushing guide  130  to maintain reciprocating movement  140   
           140  Movement of the reciprocating arm  110  to transmit axial force 
           145  First removably engagable rotatable couple of the cantilever section  120   
           150  First removably engagable interface structure 
           155  Removable coupling 
           160  Primary end portion of the coupling  155   
           165  Secondary end portion of the coupling  155   
           170  Lengthwise axis on the coupling  155   
           175  Second interface of the removable coupling  155  that is removably engagable rotationally free about the longitudinal axis  105  of the coupling  155   
           180  T-slot positioned perpendicular to the lengthwise axis  170  of the second interface  175   
           185  Single outward radially oriented opening of the second interface  175   
           190  First slotted pivotal aperture of the coupling  155   
           195  Transmission of the reciprocating axial force through movement  140  at the coupling  155   
           200  Coincident position of the lengthwise axis  170 , the longitudinal axis  105 , and the long axis  220  to one another 
           205  Removable cutting head assembly 
           210  Proximal end portion of the removable cutting head assembly  205   
           215  Distal end portion of the removable cutting head assembly  205   
           220  Long axis of the removable cutting head assembly  205   
           225  Fourth removably engagable interface structure 
           230  Pair of open cutting blades 
           235  Straight extension outward of the pair of open cutting blades  230   
           240  Arcuate extension outward of the pair of open cutting blades  230   
           245  Free end portion of the cutting blades  230   
           250  Pivotally attached portion of the cutting blades  230   
           255  Rotatable pivot head 
           260  Rotation of the pivot head  255   
           265  Third interface structure of the rotatable couple of the rotatable pivot head  255   
           270  Mid-blade section of the cutting blades  230   
           275  Second pivotal connection 
           280  Second pivotal axis of the second pivotal connection  275   
           285  Pair of intermediate linkages 
           290  Third pivotal connection 
           295  Third pivotal axis of the third pivotal connection  290   
           300  Loop structure for slidably engaging the removable coupling  155  to maintain the reciprocating movement  140   
           305  First pivotal connection 
           310  First pivotal axis of the first pivotal connection  305   
           315  First plane 
           320  Flat first plane 
           325  Arcuate first plane 
           330  Scissor type movement of the free end portion  245  of the cutting blades  230  in the first plane  315   
           335  Selectably cutting the article  70  with the scissors movement  330   
           340  Means for selectably rotationally locking the circular movement  370  in a plurality of angular positions 
           345  Flexible extension 
           350  Protrusion of the flexible extension  345   
           355  Second aperture 
           360  Frictional projection of the protrusion  350  therethrough the second aperture  355   
           365  Clamp of the protrusion  350  to the second aperture  355   
           370  Circular rotational movement of the first  310 , second  280 , and third  295  pivotal axes about the longitudinal axis  105   
           375  Light 
           380  Beam of light of the light  375   
           385  Third aperture 
           390  Electrical drive motor 
           395  Rotational axis of the electrical drive motor  390   
           400  Eccentric element 
           405  Rotational coupling of the electric drive motor  390  to the eccentric element  400   
           410  Fourth pivotal connection 
           415  Fourth pivotal axis 
           420  Eccentric distance 
           425  Connecting rod 
           430  Fifth pivotal connection 
           435  Fifth pivotal axis 
           440  Circuitry 
           445  Normally open switch 
           450  Substantially rigid electrical power cord sleeve 
           455  Reciprocating cutting blade 
           456  Reciprocating cutting blade movement 
           460  Transversely positioned reciprocating cutting teeth of the reciprocating cutting blade  455   
           465  Cantilever end portion of the reciprocating cutting blade  455   
           470  Slidably engaged portion of the reciprocating cutting blade  455   
           475  Static cutting blade 
           480  Transversely positioned static cutting teeth of the static cutting blade  475   
           485  Cantilever end portion of the static cutting blade  475   
           490  Retained portion of the static cutting blade  475  in the cap  525   
           495  Rotatable retainer head 
           500  Rotation of the rotatable retainer head  495  about the long axis  220   
           505  Third interface structure of the rotatable couple of the rotatable retainer head  495  to the distal end portion  215   
           510  Slidable engagement of the retainer head  495  and the reciprocating cutting blade  455   
           515  Sixth pivotal connection 
           520  Sixth pivotal axis 
           525  Cap 
           530  “U” shaped removably engagable pin 
           535  Mating channel for receiving the “U” shaped removably engagable pin  530   
           540  Ninety degree rotational locks from the “U” shaped removably engagable pin  530  about the long axis  220  as between the retainer head  495  and the cap  525   
           545  Second plane 
           550  Circular rotational movement of the sixth pivotal axis  520  about the longitudinal axis  105   
       
    
     DETAILED DESCRIPTION 
     With initial reference to  FIG. 1  shown is a perspective view of the cutting apparatus  50  that includes the power element  85 , a first end portion  90  of the power element  85 , a second end portion  95  of the power element  85 , a portion of the power element  85  adapted  100  to be grasped by a user&#39;s hand  60 , and a longitudinal axis  105  of the power element  85 . Further,  FIG. 1  shows the first removably engagement structure  150  that is interfaced with a fourth removably engagable interface structure  225  of the cutting head assembly  205  that includes the rotatable pivot head  255 , the means  340  for selectable rotationally locking the circular movement  370 , the cutting blades  230 , and the light beam  380  within the third aperture  385 . 
     Next,  FIG. 2  shows cross section  2 - 2  from  FIG. 9 , giving detail of the power element  85  first end portion  90  with the reciprocating arm  110  having reciprocating movement  140  as driven by the electric drive motor  390 , the rotational axis  395  of the motor  390 , the eccentric element  400 , the rotational coupling  405  of the electric drive motor  390  to the eccentric element  400 , the connecting rod  425 , the reciprocating arm  110  that is slidably engaged  135  to the bushing guide  130 , and the first removably engagable interface structure  150 . 
     Continuing,  FIG. 3  shows cross section  2 - 2  from  FIG. 1 , essentially showing a ninety degree rotated view of  FIG. 2 , with  FIG. 3  giving detail of the power element  85  first end portion  90  with the reciprocating arm  110  having reciprocating movement  140  as driven by the electric drive motor  390 , the rotational axis  395  of the motor  390 , the eccentric element  400 , the connecting rod  425 , the reciprocating arm  110  that is slidably engaged  135  to the bushing guide  130 , and the first removably engagable interface structure  150 . 
     Next,  FIG. 4  is cross section  4 - 4  from  FIG. 1  showing the removable cutting head assembly  205 , the distal end portion  215  of the removable cutting assembly  205 , the proximal end portion  210  of the removable cutting assembly  205 , the movement  140  of the reciprocating arm  110  from the power element  85 , the reciprocating arm  110 , the longitudinal axis  105  of the power element  85 , and the lengthwise axis  170  of the removable coupling  155 . 
     Further,  FIG. 4  shows the coincident position  200  of the lengthwise axis  170  and the longitudinal axis  105 , the first end portion  90  of the power element  85 , the removable coupling  155 , the primary end portion  160  of the removable coupling  155 , the secondary end portion  165  of the removable coupling  155 , a second interface  175  for the first removably engagable rotatable couple  145 , the means  340  for selectable rotationally locking the circular movement  370 , the fourth removably engagable interface structure  225 , a second interface  175  of the removable coupling  155 , and a first slotted pivotal aperture  190  of the removable coupling  155 . 
     Also,  FIG. 4  shows a third pivotal connection  290 , a pair of intermediate linkages  285 , a mid-blade section  270  of the cutting blades  230 , the transmission of the reciprocating axial force movement  140  from the reciprocating arm  110 , to the removable coupling  155 , to the pair intermediate linkages  285  at the third pivotal connection  290 , to the second pivotal connection  275  to the mid-blade section  270  of the cutting blades  230 , through the first pivotal connection  305 , and finally to the pair of cutting blades  230  that creates scissors type movement  330  at the free end portion  245  of the cutting blades  230 , and the circular rotational movement  370  about the longitudinal axis  105  for the rotatable pivot head  255 . 
     Further,  FIG. 5  is cross section  5 - 5  from  FIG. 1 , essentially showing  FIG. 4  rotated ninety degrees, with  FIG. 5  showing the removable cutting head assembly  205 , the distal end portion  215  of the removable cutting assembly  205 , the proximal end portion  210  of the removable cutting assembly  205 , the movement  140  of the reciprocating arm  110  from the power element  85 , the reciprocating arm  110 , the longitudinal axis  105  of the power element  85 , and the lengthwise axis  170  of the removable coupling  155 . Further,  FIG. 5  shows the coincident position  200  of the lengthwise axis  170  and the longitudinal axis  105 , the first end portion  90  of the power element  85 , the removable coupling  155 , the primary end portion  160  of the removable coupling  155 , the secondary end portion  165  of the removable coupling  155 , a second interface  175  for the first removably engagable rotatable couple  145 , the means  340  for selectable rotationally locking the circular movement  370  and the flexible extension  345 , the fourth removably engagable interface structure  225 , a second interface  175  of the removable coupling  155 , and a first slotted pivotal aperture  190  of the removable coupling  155 . 
     Also,  FIG. 5  shows, a third pivotal connection  290 , a pair intermediate linkages  285 , a mid-blade section  270  of the cutting blades  230 , the transmission of the reciprocating axial force movement  140  from the reciprocating arm  110 , to the removable coupling  155 , to the pair intermediate linkages  285  at the third pivotal connection  290 , to the second pivotal connection  275  to the mid-blade section  270  of the cutting blades  230 , through the first pivotal connection  305 , and finally to the pair of cutting blades  230  that creates scissors type movement  330  at the free end portion  245  of the cutting blades  230  that extend in a flat  320  first  315  plane, and the circular rotational movement  370  about the longitudinal axis  105  for the rotatable pivot head  255 . 
     Continuing,  FIG. 6  is cross section  6 - 6  from  FIG. 1  essentially showing  FIG. 4  rotated ninety degrees and being similar to  FIG. 5 , with  FIG. 6  showing the removable cutting head assembly  205 , with the cutting blades  230 , through the first pivotal connection  305 , and the pair of cutting blades  230  that creates scissors type movement  330  at the free end portion  245  of the cutting blades  230  that extend in an arcuate  325  first  315  plane, and the circular rotational movement  370  about the longitudinal axis  105  for the rotatable pivot head  255 . 
     Moving onward,  FIG. 7  is cross section  7 - 7  from  FIG. 10  showing the removable cutting head assembly  205 , the distal end portion  215  of the removable cutting assembly  205 , the proximal end portion  210  of the removable cutting head assembly  205 , the movement  140  of the reciprocating arm  110  from the power element  85 , the reciprocating arm  110 , the longitudinal axis  105  of the power element  85 , and the lengthwise axis  170  of the removable coupling  155 . 
     Further,  FIG. 7  shows the coincident position  200  of the lengthwise axis  170  and the longitudinal axis  105 , the first end portion  90  of the power element  85 , the removable coupling  155 , the primary end portion  160  of the removable coupling  155 , the secondary end portion  165  of the removable coupling  155 , a second interface  175  for the first removably engagable rotatable couple  145 , the means  340  for selectable rotationally locking the circular movement  500 ,  550 , and the flexible extension  345 , the fourth removably engagable interface structure  225 , a second interface  175  of the removable coupling  155 , and a first slotted pivotal aperture  190  of the removable coupling  155 . 
     Also  FIG. 7  shows a sixth pivotal connection  515 , a reciprocating cutting blade  455  with transversely positioned reciprocating cutting teeth  460 , the transmission of the reciprocating axial force movement  140  from the reciprocating arm  110 , to the removable coupling  155 , to the reciprocating cutting blade  455  through a slidable engagement  470  in the retainer head  495 , and finally to the transversely positioned reciprocating cutting teeth  460  that have reciprocating movement  456  at their cantilever end portion  465 , and the circular rotational movement  500 ,  550  about the longitudinal axis  105  for the rotatable retainer head  495 , further shown are a plurality of transversely positioned static cutting teeth  480 . 
     Yet, further,  FIG. 8  is cross section  8 - 8  from  FIG. 10  essentially showing  FIG. 7  rotated ninety degrees, with  FIG. 8  showing the removable cutting head assembly  205 , the distal end portion  215  of the removable cutting head assembly  205 , the proximal end portion  210  of the removable cutting head assembly  205 , the movement  140  of the reciprocating arm  110  from the power element  85 , the reciprocating arm  110 , the longitudinal axis  105  of the power element  85 , and the lengthwise axis  170  of the removable coupling  155 . 
     Further,  FIG. 8  the coincident position  200  of the lengthwise axis  170  and the longitudinal axis  105  are shown, the first end portion  90  of the power element  85 , the removable coupling  155 , the primary end portion  160  of the removable coupling  155 , the secondary end portion  165  of the removable coupling  155 , a second interface  175  for the first removably engagable rotatable couple  145 , the means  340  for selectable rotationally locking the circular movement  500 ,  550 , and the flexible extension  345 , plus the fourth removably engagable interface structure  225 , a second interface  175  of the removable coupling  155 , and a first slotted pivotal aperture  190  of the removable coupling  155 . 
     Continuing,  FIG. 8  shows the sixth pivotal connection  515 , the reciprocating cutting blade  455  with transversely positioned reciprocating cutting teeth  460  (not shown), the transmission of the reciprocating axial force movement  140  from the reciprocating arm  110 , to the removable coupling  155 , to the reciprocating cutting blade  455  through the slidable engagement  470  in the retainer head  495 , and finally to the transversely positioned reciprocating cutting teeth  460  (not shown) that have reciprocating movement  456  at their cantilever end portion  465 . Also  FIG. 8  shows the circular rotational movement  500 ,  550  about the longitudinal axis  105  for the rotatable retainer head  495 , further shown is the static cutting blade  475  with its transversely positioned static cutting teeth  480  (not shown), wherein the static cutting blade  475  is retained  490  in a cap  525  that is rotatably pinned  530  to the rotatable retainer head  495  through a plurality of mating channels  535 . 
     Further,  FIG. 9  shows a use drawing of the cutting apparatus  50  with a manual user  55  using their hands  60  from their wrists  65  to manually grasp  100  the second end portion  95  of the power element  85  of the cutting apparatus  50  while using their other hand  60  to grasp  100  the article  70  to be trimmed  75  in a selected  335  portion  80  location using the pair of open cutting blades  230  with their scissor type movement  330 . 
     Next,  FIG. 10  shows a use drawing of the cutting apparatus  50  with a manual user  55  using their hands  60  from their wrists  65  to manually grasp  100  the second end portion  95  of the power element  85  of the cutting apparatus  50  while using their other hand  60  to grasp  100  the article  70  to be trimmed  75  in a selected portion  80  location using the reciprocating cutting blade  455  transversely positioned cutting teeth  460  sliding against the static cutting blade  475  transversely positioned cutting teeth  480  with their combined hedge trimmer type movement. 
     Continuing,  FIG. 11  shows an electrical schematic diagram of circuitry  440  for the cutting apparatus  50  that is positioned in  FIGS. 2 and 3 , the circuitry  440  shown includes the lights  375 , the motor  390 , and the normally open switch  445 , plus other components that are known in the art. 
     Broadly in looking at  FIGS. 1 to 6 , and  FIGS. 9 to 11 , the cutting apparatus  50  for trimming  75  the selected portion  80  from the article  70  is shown, wherein the cutting apparatus  50  includes the power element  85  that has the first end portion  90  and an opposing second end portion  95  with the longitudinal axis  105  spanning therebetween, see  FIGS. 1 to 3  in particular. Wherein, the first end portion  90  has the reciprocating arm  110  having the reciprocating movement  140  along the longitudinal axis  105  and the second end portion  95  is adapted  100  to be grasped by the manual user&#39;s  55  hand  60 , see  FIGS. 9 and 10 , with the reciprocating arm  110  extending in a cantilever section  120  having the first removably engagable rotatable couple  145  annulus  115  that is about the longitudinal axis  105  and the first end portion  90  also having the first removably engagable interface structure  150 , again as best shown in  FIGS. 1 to 5 . 
     Also included on the cutting apparatus  50  is the removable coupling  155  having the primary end portion  160  and the opposing secondary end portion  165  with the lengthwise axis  170  spanning therebetween, with the primary end portion  160  having the removably engagable rotationally free movement about the longitudinal axis  105  second interface  175  that forms the removably engagable rotatable couple with the reciprocating arm  110  cantilever section  120  rotatable couple annulus  115  and the secondary end portion  165  having the first slotted pivotal aperture  190 , see in particular  FIGS. 4 to 8 . Wherein, the removably engagable rotatable couple  155  transmits  195  reciprocating axial force movement  140  along the lengthwise axis  170  and the longitudinal axis  105 , wherein positionally the lengthwise axis  170  and the longitudinal axis  105  are coincident  200  to one another, as best shown in  FIGS. 4 to 8 . 
     Further included in the cutting apparatus  50  is the removable cutting head assembly  205  having the proximal end portion  210  and the opposing distal end portion  215  with the long axis  220  spanning therebetween, the proximal end portion  210  includes a fourth removably engagable interface structure  225  that removably engages with the first removably engagable structure  150  such that the long axis  220  and the longitudinal axis  105  are coincident  200  to one another, see  FIGS. 4 to 8 . The distal end portion  215  extends outward  235  into having the pair of open cutting blades  230  that each have a free end portion  245  and an opposing first pivotally attached  250  portion forming the first pivotal connection  305  with the first pivotal axis  310  that is disposed within the rotatable pivot head  255 , see  FIGS. 4 to 6 . 
     Wherein the rotatable pivot head  255  is rotatable  260  about the long axis  220  within the distal end portion  215  as the pivot head  255  has a rotatable couple third interface structure  265  with the distal end portion  215  that allows the pivot head  255  to have movement  370  while the pivot head  255  is retained in the distal end portion  215 , the cutting blades  230  also extend toward the proximal end portion  210  with the pair of mid-blade sections  270  therebetween, the mid-blade portions  270  each have a second pivotal connection  275  with the second pivotal axis  280  to the pair of intermediate linkages  285 , again see  FIGS. 4 to 8 . Wherein the linkages  285  have the single third pivotal connection  290  with the third pivotal axis  295  to one another and to the first slotted pivotal aperture  190  of the removable coupling  155  that is slidably engaged through a loop structure  300  in the proximal end portion  210  to maintain the reciprocating movement  140  into alignment. Wherein the first pivotal connection  305  through the first pivotal axis  310 , the cutting blade  230  free end portions  245  having the scissor type movement  330  in the first plane  315 , see  FIGS. 4, 5, and 6 . 
     Wherein operationally, the reciprocating arm  110  drives through the removable coupling  155  to the pair of intermediate linkages  285  and the cutting blades  230  such that the cutting blade  230  free end portions  245  have the scissor movement  330  from the first pivotal connection  305  to the cutting blade  230  free ends  245  that are functional to cut  75  the article  70 . Further, the rotatable pivot head  255  is selectably rotatable through movement  370 , wherein the first  310 , second  280 , and third  295  pivotal axes all rotate in unison in a circular movement  370  about the longitudinal axis  105  allowing the scissor type movement  330  in the first plane  315  to be selectively rotatable  370  about the longitudinal axis  105 , see  FIGS. 4 to 6 . This results in the first cutting plane  315  having rotational  370  adjustment relative to the manual grasp  100  by the user&#39;s hand  60 , further the removable cutting head assembly  205  and the removable coupling  155  are removably engagable from the power element  85  via the first  150 , second  175 , and fourth  225  removably engagable interfaces, such that the removable cutting head assembly  205  can be safely immersed into a cleaning solution separate from the power element  85 , see  FIGS. 1 to 6 . 
     Optionally, for the cutting apparatus  50  for trimming  75  the selected portion  80  from the article  70 , the coupling  155  that is removably engagable and rotationally free about the longitudinal axis  105  second interface  175  is preferably constructed of a T-slot  180  positioned perpendicular to the lengthwise axis  170  with a single outward radially oriented opening  185 . Wherein the T-slot  180  slidably engages the reciprocating arm  110  annulus  115  for the transmission of the reciprocating movement  140  axial force while allowing free rotation for movement  370  via the t-slot  180  and annulus  115  interface and removable engagement is facilitated via the opening  185  for the separation of the reciprocating arm  110  and the removable coupling  155  that ultimately allows for the separation of the power element  85  from the cutting head assembly  205 , as best shown in  FIGS. 4 to 8 . 
     Further, optionally, on the cutting apparatus  50  for trimming  75  the selected portion  80  from the article  70 , can further comprise a means  340  for selectably rotationally locking the circular movement  370  in a plurality of angular positions, as best shown in  FIGS. 4 to 10 . Continuing, for the means  340  for selectably rotationally locking the circular movement  370  in a plurality of angular positions, is preferably constructed of a flexible extension  345  that projects in a cantilever manner away from the rotatable pivot head  255  in an outward direction from the third interface structure  265 ,  505  and in a direction opposite that of the first pivotal axis  310 , or the channel  535  relation to the third interface structure  265 ,  505 . The flexible extension  345  terminates in a protrusion  350  that frictionally projects  360  therethrough a second aperture  355  disposed in the distal end portion  215 , as shown in  FIG. 1  and  FIGS. 4 to 8 . Further, optionally the protrusion  350  and the second aperture  355  further preferably comprise a clamp  365  to help secure the protrusion  350  and the second aperture  355  to one another to further facilitate the selectable rotational locking of the circular movement  370  in a plurality of angular positions, see  FIG. 1  and  FIGS. 4 to 8 . 
     Referring in particular to  FIG. 5  for the cutting apparatus  50  for trimming  75  a selected portion  80  from the article  70 , the pair of open cutting blade  230  free end portions  245  are straight  235  extending outward from the first pivotal connection  305  having the scissor type movement  330  in the first plane  315  that is in a flat plane  320  to operationally facilitate direct perpendicular cuts  75  of the article  70 . Next, also referring in particular to  FIG. 6  for the cutting apparatus  50  for trimming  75 , a selected portion  80  from the article  70 , the pair of open cutting blade  230  free end portions  245  can have an arcuate shape  240  extending outward from the first pivotal connection  305  having the scissor type movement  330  in the first plane  315  that is the arcuate plane  325  being operationally to facilitate direct angular cuts  75  of the article  70 . 
     Another option for the cutting apparatus  50  for trimming  75  a selected portion  80  from an article  70 , wherein the power element  85  second end portion  95  can further comprise the light  375  that emits the light beam  380  therethrough the third aperture  385  in the removable cutting head assembly  205  to operationally allow the light beam  380  to illuminate the pair of open cutting blade  230  free end portions  245  or the reciprocating cutting blade  455  and the static cutting blade  475 , see  FIGS. 1 to 3, 5 to 7, and 11 . 
     Focusing in particular on  FIGS. 2 and 3 , for the cutting apparatus  50  for trimming  75  a selected portion  80  from an article  70 , the power element  85  that generates the reciprocating arm  100  reciprocating movement  140  is preferably constructed of the electrical drive motor  390  having the motor rotational axis  395  that is rotationally coupled  405  to the eccentric element  400  having a fourth pivotal connection  410  with a fourth pivotal axis  415 , wherein the eccentric  400  is formed by an eccentric distance  420  as between the motor rotational axis  395  and the fourth pivotal axis  415 . Further preferably included is a connecting rod  425  that spans from the fourth pivotal connection  410  to a fifth pivotal connection  430  having a fifth pivotal axis  435 , wherein the fifth pivotal connection  430  connects to an opposing end portion  125  of the cantilever section  120  of the reciprocating arm  110 , wherein the reciprocating arm  110  is slidably engaged  135  to the bushing guide  130  affixed to the second end portion  95 . This slidable engagement  135  facilitates the reciprocating movement  140 , wherein operationally the reciprocating movement  140  is created by a rotation of the eccentric element  400  that converts motor  390  rotation into the reciprocating movement  140  through the connecting rod  425  and the bushing guide  130  through the eccentric distance  420 . 
     As an optional enhancement to the cutting apparatus  50  for trimming  75  the selected portion  80  from the article  70 , wherein the power element  85  can further comprises circuitry  440  to accommodate selectable adjustment of a rotational speed on the motor  390 , thus is effect selectably controlling a speed of the scissor movement  330  or the reciprocating blade  455  movement  456  in relation to the static  475  cutting blades, see  FIG. 11 , plus  FIGS. 2 and 3 . 
     As a further optional enhancement to the cutting apparatus  50  for trimming the selected portion  80  from the article  70 , wherein the power element  85  can further comprise a normally open switch  445  to the motor  390 , wherein operationally the user  55  has to manually continuously activate or push down upon the normally open switch  445  to activate the motor  390  for safety while using the cutting apparatus, being termed a “dead man” switch, wherein if the switch  445  is released the motor  390  will deactivate, see  FIG. 11 , plus  FIGS. 1, 2, 4, and 8 . 
     As a convenience option for the cutting apparatus  50  for trimming  75  the selected portion  80  from the article  70 , wherein the power element  85  first end portion  90  can further comprise a substantially rigid electrical power cord sleeve  450  that extends from the first end portion  90  to operationally help prevent entanglement of a power cord while the cutting apparatus  50  is in use by the user  55 , see  FIGS. 1 to 3 and 9 to 10 . 
     As the cutting blades  230 ,  455 ,  475  are removable from the cutting apparatus  50  via the removable cutting head assembly  205 , an alternative set of cutting blades  455 ,  475 , are shown in  FIGS. 7 and 8 , which are described as follows for the cutting apparatus  50  for trimming the selected portion  80  from the article  70 . Starting with the power element  85  and the removable coupling  155  as previously described, and looking at the removable cutting head assembly  205  in particular that has the proximal end portion  210  and the opposing distal end portion  215  with the long axis  220  spanning therebetween. Wherein, the proximal end portion  210  includes the fourth removably engagable interface structure  225  that removably engages with the first removably engagable structure  150  such that the long axis  220  and the longitudinal axis  105  are coincident  200  to one another, the distal end portion  215  extends outward along the long axis  220  into having the reciprocating cutting blade  455  that has the plurality of transversely positioned reciprocating cutting teeth  460  that are external to the distal end portion  215  on a cantilever end portion  465 , see  FIG. 7  in particular. 
     The reciprocating cutting blade  455  on an end opposing the cutting teeth  460  has a slidably engaged  510  portion  470  that is disposed within the rotatable retainer head  495 , as a reciprocating movement  456  guide, wherein the retainer head  495  is rotatable  500 ,  550  about the long axis  220  within the distal end portion  215  as the retainer head  495  has a rotatable couple third interface structure  505  with the distal end portion  215  as previously described for the third interface structure  265 . The reciprocating cutting blade  455  also extends toward the proximal end portion  210  further opposite of the cutting teeth  460  for a sixth pivotal connection  515  having a sixth pivotal axis  520  to the first slotted pivotal aperture  190  of the removable coupling  155  that is slidably engaged through the loop structure  300  to the proximal end portion  210  to maintain the reciprocating movement  140 . Further included is the static cutting blade  475  that is retained  490  in the cap  525 , see  FIG. 8 , wherein the cap  525  is rotatably removably engaged to the rotatable retainer head  495  via a “U” shaped removably engagable pin  530  that is received into a pair of mating channels  535  that are disposed between the rotatable retainer head  495  and the cap  525 , again see  FIGS. 7 and 8 . 
     The pin  530  facilitates ninety degree rotational locks  540  about the long axis  220  as between the rotatable retainer head  495  and the cap  525 . The rotatable retainer head  495  is slidably  510  in contact at portion  470  with the reciprocating cutting blade  455  acting as a guide to the reciprocating movement  456 . The static cutting blade  475  also has a plurality of transversely positioned static cutting teeth  480  that are in slidable contact with the reciprocating cutting teeth  460  forming a hedge trimmer type arrangement, the reciprocating cutting teeth  460  and the static cutting teeth  480  have movement in a second plane  545  external to the distal end portion  215  where the reciprocating blade is cantilever  465  and the static cutting blade is cantilever  485 . 
     Wherein operationally, the reciprocating arm  110  drives through the coupling  155  to the reciprocating cutting blade  455 , see  FIGS. 7 and 8 , such that with the static cutting blade  475  have the hedge trimmer type movement that is functional to cut  75  the article  70 , see  FIG. 10 , further the rotatable retainer head  495  is selectably rotatable as is the cap  525 , via pulling and reinserting the pin  530  in ninety degree increments about the long axis  220  as the channels  535  “box” or form a square in the retainer head  495  about the long axis  220 , see  FIGS. 7 and 8 . Further, the sixth pivotal axis  520  rotates in a circular movement  550  about the longitudinal axis  105  allowing the hedge trimmer type movement in the second plane  545  to be selectively rotatable  550  about the longitudinal axis  105 , resulting in the second cutting plane  545  having rotational  550  adjustment relative to the manual grasp by the user&#39;s  55  hand  60 . Further, the cutting head assembly  205  and the removable coupling  155  are removably engagable from the power element  85  via the first  150 , second  175 , and fourth  225  removably engagable interfaces, such that the cutting head assembly  205  can be safely immersed into a cleaning solution separate from the power element  85 , see  FIGS. 7 and 8 . 
     The following list is the preferred major components of construction which are listed for a single embodiment of the cutting apparatus  50 , it is understood that equivalents for each of the following could be used for the present invention of the cutting apparatus  50 ; 
     For the circuitry  440  as shown in  FIG. 11  and positioned in  FIGS. 2 and 3 , the motor  390  is a preferably a Permanent Magnet 12 volt 16 mm Body Diameter by 2.2 in long, box Speed Reducer motor with an integral speed reducing gearbox with an output speed of 300 rpm and a 3 mm diameter output shaft. The main on/off switch is combined with a potentiometer and is preferably a 500K ohm, 0.2 W Power Rating, Single Linear Taper Switch Carbon Potentiometer Model WH138. The normally open switch  445  is preferably an Amico Momentary Push Button Tactile Switch that is a 4 pin DIP PCB that is 12 mm×12 mm×8 mm in size, UNSPSC Code 39122216. The light  375  is preferably a 5 mm White LED part number RL5-W6018 with a preferred lens from VCC part number LM-05-LP or CLB 300 xxx. The DC motor  390  speed control is preferably a 20 W rated, code 804, Level 1, from FUTURE KIT, part number FK 804-1, being in the form of a preassembled circuit board that utilizes PWM for speed control. For the power supply it is preferably a 12 Volt 1 Amp AC to DC driven from a standard wall plug from PHC Enterprise part number PHC SW-121BP with a 2.5 mm×5.5 mm center positive output plug. 
     For the pair of open cutting blades  230  they are preferably constructed of tool grade stainless steel material ID CPM S35 that have a Rockwell “C” scale hardness of 59-62. For the first pivotal connection  305  whose goal is to keep a correct compressive tension as between the blades  230 , the construction is preferably from a stainless steel sexbolt utilizing a pair of tension washers and a pair of self-lubricating thrust washers that are preferably an OILITE 841 thrust washer with a 5.3 mm inside diameter and a 9 mm outside diameter by 1.6 mm thick. The fourth pivotal connection  410  preferably uses a bushing that is an OILITE part number FFM0306-06. For the bushing guide  130  it is preferably constructed of an OILITE part number AAM0609-12. 
     CONCLUSION 
     Accordingly, the present invention of a cutting apparatus has been described with some degree of particularity directed to the embodiments of the present invention. It should be appreciated, though; that the present invention is defined by the following claim construed in light of the prior art so modifications or changes may be made to the exemplary embodiments of the present invention without departing from the inventive concepts contained therein.