Edge treatment for glass panes
OwnerRobert Spindlerinventor
Life of this patent
Estimating the term…
Abstract
The invention provides a glass pane having a central portion and a peripheral portion. The peripheral portion is heat-treated to increase its resistance to breakage and the central portion is not heat-treated. The glass pane is suitable for use as a window in a window frame. The invention also provides methods of forming a glass pane suitable for use as a window in a window frame.
Claims39
A glass pane having a central portion, and a peripheral portion extending inwardly from and bounded by edges of the pane, the peripheral portion being heat-treated to increase its resistance to breakage, and said central portion being not heat-treated.
A framed glass unit comprising a glass pane and a frame, the glass pane having a central portion and a peripheral portion, the peripheral portion alone being heat-treated to increase its resistance to breakage, the frame shielding at least part of the peripheral portion of the pane.
A method of forming a glass pane suitable for use as a window, door or the like, comprising:
- a. providing a glass pane that has not been heat-treated,
- b. laser cutting said pane to provide a glass pane having a heated peripheral portion bounded by edges of the pane and extending inwardly from such edges,
- c. quickly quenching the heated peripheral portion to heat treat it, leaving the pane with a central portion that is not heat-treated.
A method of forming a glass pane suitable for use as a window, door or the like, comprising:
- providing glass that has not been heat-treated;
- cutting the glass into a pane having a peripheral portion and a central portion, the cutting causing the peripheral portion of the glass pane to heat up;
- quenching only the peripheral portion with a cold quenching medium to heat treat it, while leaving the central portion free of heat treatment.
A method of forming a glass pane suitable for use as a window, door or the like, comprising:
- providing a glass pane that has not been heat-treated, the glass pane having a peripheral portion and a central portion;
- heating only the peripheral portion, causing the peripheral portion to heat up;
- quenching only the peripheral portion with a cold quenching medium to heat treat it, while leaving the central portion free of heat treatment.
Dependencies are inferred from the claim text.