Method and apparatus for repairing cracks in plate glass

Claim 2

METHOD OF REPAIRING AN INSTALLED SUBSTANTIALLY VERTICAL INTEGRAL TRANSPARENT PLATE GLASS PANEL, SAID PANEL HAVING FIRST AND SECOND SPACED PARALLEL PLANAR SURFACE WITHOUT LAMINATION REINFORCEMENT THEREBETWEEN AND A GENERALLY CONICAL CAVITY THEREBETWEEN FORMED BY A BROKEN-OUT PIECE OF GLASS OF LIKE SHAPE, THE BASE OF THE CONE BEING IN THE PLANE OF THE FIRST SURFACE AND THE APEX THEREOF BEING DISPOSED ADJACENT THE SECOND SURFACE, COMPRISING: A. REMOVING LOOSE PARTICLES OF GLASS, IF ANY FROM THE CAVITY THROUGH THE BASE THEREOF, B. APPLYING A READILY MANUALLY REMOVABLE CLOSURE HAVING A FLAT SURFACE TO THE FIRST SURFACE CONTIGUOUS WITH THE BASE OF THE CONE AND A SURROUNDING PORTION OF THE FIRST SURFACE, C. DELIVERING A TRANSPARENT LIQUID PREPOLYMER, FIRST TO THE LOWER PORTION OF THE CAVITY WHEREBY THE LIQUID LEVEL THEREIN MAY RISE AND DISPLACE AIR THEREBELOW, D. VENTING AIR ABOVE THE LIQUID LEVEL FROM THE UPPERMOST PORTION OF THE CAVITY, WHEREBY ALL AIR IN THE CAVITY IS VENTED THEREFROM WHEN THE LIQUID LEVEL REACHES THE UPPERMOST PORTION OF THE CAVITY, E. CAUSING THE LIQUID TO POLYMERIZE INTO A SOLID CONICAL PLUG, AND F. REMOVING THE CLOSURE AND SURPLUS MATERIAL ON THE FIRST SURFACE IN THE LOCUS AROUND THE BASE OF THE CONE.

Claim 3

Method in accordance with claim 1 wherein the closure is provided with a liquid reservoir at its top And the closure is slid upwardly along the first surface, transferring liquid from the reservoir to the cavity and forming a flat surface below the liquid level adjacent the cavity.

Claim 4

Method in accordance with claim 1 wherein the closure is applied to the first surface, in fixed position, and air is vented from the cavity through a channel in the closure communicating with the uppermost portion of the cavity.

Claim 5

Method in accordance with claim 1 wherein said apex is in the form of a small aperture extending through the second surface, into which the liquid flows at least to the plane of the second surface.

Claim 6

Method in accordance with claim 4 including delivering the liquid to the cavity through said aperture.

Claim 7

Method in accordance with claim 4 including applying a flat closure to the second surface, covering the outer end of the aperture, and delivering the liquid to the cavity from a locus adjacent the first surface.

Claim 8

Method in accordance with claim 4 including applying a dam to the second surface, forming a reservoir into which liquid may flow through the aperture, delivering the liquid to the cavity from a locus adjacent the first surface, and removing the material on the second surface which flows into the reservoir.

Claim 9

Apparatus for repairing an installed substantially vertical integral transparent plate glass panel, said panel having first and second spaced parallel planar surfaces without lamination reinforcement therebetween and a generally conical cavity therebtween formed by a broken-out piece of glass of like shape, the base of the cone being in the plane of the first surface and the apex thereof being disposed adjacent the second surface, comprising: a. a readily manually removable closure having a flat surface adapted to be applied to the first surface contiguous with the base of the cone and surrounding portion of the first surface; b. means for delivering a transparent liquid prepolymer, first to the lower portion of the cavity, whereby the liquid level therein may rise and displace air therebelow; and c. means for venting air above the liquid level from the uppermost portion of the cavity, whereby all air in the cavity is vented therefrom when the liquid level reaches the uppermost portion of the cavity; d. said closure being provided with a liquid reservoir at its top adapted to transfer liquid therefrom to the cavity as it is slid upwardly along the first surface and also form a flat surface below the liquid level adjacent the cavity.

Claim 10

Apparatus for repairing an installed substantially vertical integral transparent plate glass panel, said panel having first and second spaced parallel planar surfaces without lamination reinforcement therebetween and a generally conical cavity therebtween formed by a broken-out piece of glass of like shape, the base of the cone being in the plane of the first surface and the apex thereof being disposed adjacent the second surface, comprising: a. a readily manually removable closure having a flat surface adapted to be applied to the first surface contiguous with the base of the cone and surrounding portion of the first surface; b. means for delivering a transparent liquid prepolymer, first to the lower portion of the cavity, whereby the liquid level therein may rise and displace air therebelow; and c. means for venting air above the liquid level from the uppermost portion of the cavity, whereby all air in the cavity is vented therefrom when the liquid level reaches the uppermost portion of the cavity; d. said closure being provided with a liquid reservoir at its top adapted to transfer liquid therefrom to the cavity as it is slid upwardly along the first surface and also form a flat surface below the liquid level adjacent the cavity.

Claim 11

Apparatus for repairing an installed substantially vertical integral transparent plate glass panel, said panel having first and second spaced parallel planar surfaces without lamination reinforcement therebetween and a generally conical cavity therebetween formed by a broken-out piece of glass of like shape, the base of the cone being in the plane of the first surface and the apex thereof being disposed adjacent the second surface, comprising: a. a readily manually removable closure having a flat surface adapted to be applied to the first surface contiguous with the base of the cone and a surrounding portion of the first surface; b. means for delivering a transparent liquid prepolymer, first to the lower portion of the cavity, whereby the liquid level therein may rise and displace air therebelow; and c. means for venting air above the liquid level from the uppermost portion of the cavity, whereby all air in the cavity is vented therefrom when the liquid level reaches the uppermost portion of the cavity, d. said closure adapted to be applied to the first surface in fixed position, means for delivering liquid to the bottom of the cavity, and an air vent channel in the closure communicating with the uppermost portion of the cavity.

Claim 12

Apparatus for repairing an installed substantially vertical integral transparent plate glass panel, said panel having first and second spaced parallel planar surfaces without lamination reinforcement therebetween and a generally conical cavity therebetween formed by a broken-out piece of glass of like shape, the base of the cone being in the plane of the first surface and the apex thereof being disposed adjacent the second surface, comprising: a. a readily manually removable closure having a flat surface adapted to be applied to the first surface contiguous with the base of the cone and a surrounding portion of the first surface; b. means for delivering a transparent liquid prepolymer, first to the lower portion of the cavity, whereby the liquid level therein may rise and displace air therebelow; and c. means for venting air above the liquid level from the uppermost portion of the cavity, whereby all air in the cavity is vented therefrom when the liquid level reaches the uppermost portion of the cavity, d. said closure adapted to be applied to the first surface in fixed position, means for delivering liquid to the bottom of the cavity, and an air vent channel in the closure communicating with the uppermost portion of the cavity.