Method and means for applying liquid to form a coating on glass and for recovering excess liquid

Claim 1

A WINDOW-COATING METHOD THAT CONSISTS IN (A) MASKING AROUND THE SIDES, TOP AND LOWER EDGES OF THE WINDOW, (B) FORMING A TEMPORARY TROUGH ALONG THE LOWER WINDOW EDGE, (C) APPLYING LIQUID COATING MATERIAL TO THE SURFACE OF WINDOW BY A GRAVITATIONAL FLOW FROM A NOZZLE ON THE END OF A HAND-CARRIED CONTAINER OF SUCH MATERIAL THAT IS VENTED AT THE OPPOSITE END AND IS HELD INVERTED WITH THE VENTED END OF THE CONTAINER UP, THE APPLICATION BEING BEGUN AT THE UPPER EDGE OF THE WINDOW, (D) COLLECTING THE EXCESS OF SAID FLOW IN SAID TROUGH AS THE SAME DRAINS DOWN ALONG THE SURFACE OF THE WINDOW, AND (E) AFTER COATING THE ENTIRE SURFACE OF THE WINDOW, CLOSING THE VENT IN THE CONTAINER AND, AFTER RE-INVERTING THE SAME SO THE NOZZLE END IS UP, ALTERNATLEY SQUEEZING AND RELEASING THE CONTAINER TO SUCK THE COLLECTED EXCESS FROM THE TROUGH DIRECTLY FROM THE TROUGH BACK INTO THE CONTAINER FROM WHICH THE LIQUID HAD BEEN GRAVITATIONALLY REMOVED.