Patent ID: 6503357
Filing Date: 2003-01-07
Classification: B29C,B29L,Y10T

Abstract:
A manufacturing process of a patio tabletop glass, comprising the steps of:(a) fully cleaning at least a top surface of a tempered glass layer having a central hole thereon; (b) drying said tempered glass layer after cleaning; (c) heating said entire tempered glass layer to a temperature between 45Â° C. to 65Â° C.; (d) evenly applying a layer of acrylic adhesive on said top surface of said tempered glass layer which temperature is maintained between 45Â° C. to 65Â° C. to form an adhesive layer; (e) attaching said protection layer having a thickness of 0.3 to 0.8 mm and a width size larger than said tempered glass layer on top of said adhesive layer of said tempered glass layer by pressing said protection layer against said top surface of said tempered glass layer which is maintained at said temperature of 45Â° C. to 65Â° C. until said protection layer is integrally attached on said tempered glass layer, wherein said protection layer has a circular center portion formed above said central hole of said tempered glass layer; (f) cutting excessive edges of said protection layer to a size identical to said tempered glass layer; (g) pressing said center,portion of said protection layer toward said central hole of said tempered glass layer to increase a tension of a peripheral portion of said protection layer around said central hole of said tempered glass layer and to extend and attach said protection layer to an upper edge of said central hole of said tempered glass layer, and (h) grinding said upper edge of said central hole of said tempered glass layer until said center portion of said protection layer is separated from said protection layer to form a center hole coaxially aligned with said central hole of said tempered glass layer.