초록 ▼

Windshield repair tool has an injector for injecting liquid resin into fractures and pits in broken windshields. The injector has an injector cylinder and a plunger that applies pressure to resin in the cylinder for injecting the resin into the fracture or pit. The plunger itself includes an outer s

Windshield repair tool has an injector for injecting liquid resin into fractures and pits in broken windshields. The injector has an injector cylinder and a plunger that applies pressure to resin in the cylinder for injecting the resin into the fracture or pit. The plunger itself includes an outer sleeve and an inner plunger component biased forwardly in the outer sleeve by a coil spring. The pressure on the resin is monitored and can be controlled according to the amount that the plunger stem projects from the outer end of the plunger sleeve. This avoids insufficient or excessive filling of the fracture or pit.

대표청구항 ▼

[ What is claimed is:] [1.] A windshield repair tool having an injector and means for mounting said injector on the windshield for injecting repair medium from said injector into a fault in the windshield, wherein said injector comprises:a hollow outer cylinder having outer and inner ends, a cylinde

[ What is claimed is:] [1.] A windshield repair tool having an injector and means for mounting said injector on the windshield for injecting repair medium from said injector into a fault in the windshield, wherein said injector comprises:a hollow outer cylinder having outer and inner ends, a cylinder bore through said cylinder between said outer and inner ends, said cylinder bore defining an injection port at said inner end;a sleeve engagable in said cylinder bore, said sleeve having outer and inner ends and a sleeve bore through said sleeve between said outer and inner sleeve ends;a plunger extending along said sleeve bore and having a plunger head at an inner end thereof, between said sleeve and said injection port, and means sealing said plunger head to said through bore of said outer cylinder;resilient means biasing said plunger towards said injection port, said resilient means having a spring force that varies with displacement of said plunger along said sleeve;means for adjusting the position of said sleeve along said cylinder bore; andindicia displaying the quantity of displacement of said plunger in said sleeve against the force of said resilient means.