초록 ▼

A pinball machine having multi-level playfields with a transparent window mounted in at least an upper level playfield to allow observation therethrough to a lower level playfield. The window is mounted on a ledge in an opening in the upper level playfield with compressible rings and screws extendin

A pinball machine having multi-level playfields with a transparent window mounted in at least an upper level playfield to allow observation therethrough to a lower level playfield. The window is mounted on a ledge in an opening in the upper level playfield with compressible rings and screws extending through the window, rings and ledge to compress said rings until the window is in the same plane as said playfield.

대표청구항 ▼

A method of mounting a window in a pinball playfield so that the window is flush with the playfield, comprising the steps of: (a) forming an opening in the playfield to receive the window; (b) establishing a ledge around the periphery of the opening on the underside of the playfield; (c) placing a c

A method of mounting a window in a pinball playfield so that the window is flush with the playfield, comprising the steps of: (a) forming an opening in the playfield to receive the window; (b) establishing a ledge around the periphery of the opening on the underside of the playfield; (c) placing a compressible material at selected locations on the ledge; and (d) securing the window to the ledge with adjustable fasteners while compressing the compressible material until the window and the playfield lie in substantially the same plane. A pinball game having a playfield with a window mounted in an opening therein, comprising: (a) a playfield having an opening formed therein; (b) a ledge around the periphery of the opening on the underside of the playfield; (c) a compressible material which is disposed at selected locations on the ledge; (d) a window inserted into the hole in the playfield; and (e) adjustable fasteners securing the window to the ledge with the compressible material compressed until the window and the playfield lie in substantially the same plane.