Abstract:
A continuous loop roll towel dispenser actuated by pulling on the loop of toweling with the hands is shown in which the next user can dispense a fresh segment of towel without contacting the used towel portion.

Description:
This invention relates to roll web dispensers and more particularly to continuous roll towel dispensers in which a portion of the dispensed web is grasped by the hands of the user to actuate the dispensing of a clean unused length of web material. 
     BACKGROUND OF INVENTION 
     Continuous roll towel dispensers in which a loop of towel material is fed out of a slot adjacent the front bottom edge of the dispenser and returned into the dispenser through a rear slot have been known for many years. Generally the user of these devices would grasp the edges of the front of the loop adjacent the top of the loop as it exits the dispenser slot and pull down to dispense a clean unused portion of towel. Depending on the extent of usage of the exposed loop by the prior user a person grasping the towel edges to dispense a clean portion may contact the used portion of the towel with the undesired effect of possible contamination from the prior user. 
     PRIOR ART 
     Over the years various attempts have been made to present to a subsequent user a clean portion of towel to be grasped for the purpose of dispensing a full length of clean unused towel. These have involved sophisticated powered devices, time delay releases, retracter mechanisms and the like which sometimes malfunction. U.S. Pat. No. 5,820,231 shows a dispenser of this type in which the used towel is retracted into the dispenser housing and a blister like downward protrusion of the cabinet is used to hold the edges of a clean portion of towel away from the cabinet bottom so the next user may grasp clean towel to pull out a length sufficient to dry the hands. This is an expensive and complicated way to try and ensure the next user does not grasp used towel to dispense a clean portion. None of the prior art has successfully addressed this problem in a simple and economical fashion. 
     OBJECTS AND SUMMARY OF THE INVENTION 
     Accordingly it an object of the present invention to provide a simple effective presentation of clean unused towel to a new user for actuation of the dispenser by pulling down on the towel loop with out having to use previously used towel. 
     It is another object of the invention to prevent ordinary use of a portion of the clean unused towel dispensed by a user for the next user to grasp to dispense another unused length of towel. 
     It is yet another object of the invention to prevent contact with the used towel and surfaces touched thereby by a user triggering the dispensing of a clean unused towel segment. 
     It is a further object of the present invention to provide a shield adjacent the clean towel dispensing slot to inhibit hand contact with the extreme upper portion of dispensed towel. 
     It is a still further object of the invention to provide a shield with apertures at the edges of the dispensed towel web to allow a subsequent user to grasp clean unused towel. 
     These and other and further objects are achieved in an embodiment of the invention in which a tab is extended downwardly from the front edge of the clean towel dispensing slot a distance sufficient to provide a clean segment of towel for a subsequent user to grasp through apertures at the ends thereof to dispense a new length of unused towel without having to contact the used towel. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a side elevational view of a prior art device; 
     FIG. 2 is a digramatic end view, partially in section, of a web dispenser according to the present invention; 
     FIG. 3 is a front elevational view of the web dispenser of FIG. 2; 
     FIG. 4 is a perspective view of another embodiment of the dispenser; and 
     FIG. 5 is a front elevational view of the dispenser of FIG.  4 . 
    
    
     DESCRIPTION OF PREFERRED EMBODIMENT 
     Referring now to FIG. 1 there is shown a typical prior art dispenser  10  in which a loop  12  of towel extends out of a slot  14  close to the front of the cabinet  16  and returns through a rear slot  18  to the takeup mechanism. The user typically will grasp the edges of the front towel loop and pull down to dispense a clean segment of towel. This clean unused segment of towel is then used to dry the hands of the user. Frequently normal usage of the dispensed segment will soil all the towel right up to the mouth of the slot  14 . Thus the entire towel segment  12  will be used and dirty. The next user is thus forced to pull down a clean towel segment by grasping the dirty section first which may be very unsanitary. This has been the standard mechanical continuous roll towel device for many years. 
     Turning now to FIGS. 2 and 3 there is shown a dispenser according to the present invention. Dispenser  30  has a back housing portion  32  and a front housing portion  34  forming an enclosure for a roll of clean towel and a takeup roller for the used towel in the usual manner. Towel loop  36  extends downwardly from slot  38  formed between the cabinet front  34  and the towel bin  39 , and reenters the enclosure through a rear slot  40 , formed between the cabinet back  32  and the bin  39 . Operation of the device is similar to the prior art however dispenser  30  has a tab  42  formed as an extension of the face of front housing portion  34 . Tab  42  extends across most of the width of the towel loop  36  as it emerges from slot  38  and has a vertical length of from two to four inches as desired for a particular application. The overall length of tab  42  is less than the width of the towel loop  36  forming apertures or recesses  44  at each edge of the towel web. 
     The user of this device will tend to dry the hands using the lower central portion of the dispensed clean unused towel loop and the tab will prevent use of the top several inches of dispensed clean towel. The next user will immediately see that the towel areas behind apertures  44  have not been used and present clean towel to be grasped between the fingers of the right and left hands respectively to dispense a clean towel segment. Suitable visual arrows and directions may be applied to the outer surface of the tab  42  if desired. 
     As may be seen in FIG. 2 the bin  39  is spaced away from tab  42  to provide adequate clearance for a users&#39; hands to grasp the towel loop  36  without contact with the dirty towel or the cabinet itself which may have been contaminated from contact with a dirty towel segment or a users wet hands. 
     Referring now to FIGS. 4 &amp; 5 there is shown another embodiment of the present invention in which I have further enhanced the likelihood of the next user grasping the clean upper edges of towel loop  36  (shown in phantom in FIG. 4) behind appertures  44  to dispense an unused towel segment. Here the outer ends  46  and  48  of the bin  39  have been recessed away from the towel loop  36  toward the back housing portion  32 . The visual effect is to direct the users&#39; attention to the edges of the towel web at the upper edges exposed by recesses  44 . The recesses  46  &amp;  48  ensure that clean towel edges may be easily grasped to dispense the next clean towel segment without contacting either the dirty towel or the bin  39  of the cabinet. This ensures further separation of the subsequent users hands from the bin portion eliminating possible contamination from that source. 
     While there are given above certain specific examples of this invention and its application in practical use, it should be understood that they are not intended to be exhaustive or to be limiting of the invention.