Laminated glass and windshield repair device

1. A device for repairing cracks in laminated glass having convertibility between repairing sub-surface and surface cracks comprising:

• a cylinder defining a dispensing mouth at an inner end, a cavity and an opening at an outer end defining a central bore;
  
  a piston mounted for axial movement in the cavity of the cylinder including a seal portion forming a seal in the cavity and enabling the production of a vacuum when drawn outwardly through the cavity, a shaft portion extended through and fixed to the seal portion and movable toward the mouth, said shaft portion having a handle portion extended through the central bore and out of the cylinder opposite the mouth and exposed for manual manipulation;
  
  a mounting member attachable to the cylinder and piston combination for mounting the cylinder and piston combination to a laminated glass for positioning the mouth of the cylinder proximal to a crack in the laminated glass; and
  
  said shaft portion including a helical groove, said shaft portion extended through the central bore of the cylinder, said central bore sized to receive the shaft portion including the helical groove to permit free sliding linear movement of the shaft portion through the central bore, and a plunger member carried by the cylinder and selectively laterally projectable into and out of engagement with the helical groove of the shaft member whereby upon being projected into the groove, turning of the exposed handle portion forces movement of the shaft portion toward and away from the mouth of the cylinder and upon withdrawal of the plunger member said handle can be linearly slidably forced toward and away from the mouth of the cylinder.