초록 ▼

A windshield repair device comprising a vacuum cup with a built-in piston and cylinder assembly is characterized by a transverse opening in the cylinder so that when the piston is partly withdrawn, gas bubbles can be drawn out of the repair liquid by the vacuum holding the cup in place against the g

A windshield repair device comprising a vacuum cup with a built-in piston and cylinder assembly is characterized by a transverse opening in the cylinder so that when the piston is partly withdrawn, gas bubbles can be drawn out of the repair liquid by the vacuum holding the cup in place against the glass. In operation, after the bubbles are removed from the liquid, the piston is moved toward the glass. The piston closes off fluid communication through the transverse opening in the cylinder and as it moves further toward the glass, it forces repair liquid into the damaged area. One end of the cylinder is provided with a sealing ring which bears against the face of the windshield to provide a seal. The cylinder is used as a reservoir for repair liquid, and allows gas bubbles to be removed from the liquid by the vacuum holding the cup in place. The piston has a pointed projection at its end which bears against a separated cone of glass in the damaged area and breaks the seal between the cylinder and the face of the windshield when pressure in the repair liquid approaches a level such that it is likely to cause permanent damage by delamination of the windshield.

대표청구항 ▼

A method of repairing a conical crack in shatterproof glass comprising the steps of establishing an enclosed volume bounded in part by an area on the glass surrounding the crack and in part by a piston and cylinder assembly, an end of the cylinder being provided with a seal against the face of the g

A method of repairing a conical crack in shatterproof glass comprising the steps of establishing an enclosed volume bounded in part by an area on the glass surrounding the crack and in part by a piston and cylinder assembly, an end of the cylinder being provided with a seal against the face of the glass, introducing a repair liquid into said volume and forcing said repair liquid under pressure into said crack by moving the piston of said piston and cylinder assembly toward said crack, characterized by the step of relieving the pressure on said repair liquid by forcing a pointed projection on an end of the piston against the apex of a separated cone of glass in the crack and breaking the seal between the end of the cylinder and the glass by applying to the cylinder a force which is a reaction to the force of the pointed projection against the cone of glass.