Patent ID: 7823530

Claim:
An adjustable film applicator, comprising: an applicator body, said applicator body having a platform and a pair of foot planks, said platform having a slot which is parallel to the longer edge of said platform, said foot planks being set under the two shorter edges of said platform, each of said foot planks having a front and a rear groove on the inner surface thereof, the direction of said grooves being perpendicular to said platform, a line connecting said grooves on individual said foot planks being parallel to the longer edge of said platform; a first knife and a second knife, said first knife fitting in said front grooves of said foot planks, said second knife fitting in said rear grooves of said foot planks; a first fixing apparatus and a second fixing apparatus, said first and second fixing apparatus being set under said platform for confining said first and second knife in said front and rear grooves, respectively; and a pair of first adjusting screws and a pair of second adjusting screws, said first and second adjusting screws being set on top of said platform and aligned with said first and second knife, respectively, for adjusting the height of said first and second knife, said adjustable film applicator moving in a direction from said second knife toward said first knife; wherein said first fixing apparatus is a first fixing strip, the middle portion of said first fixing strip is fixed on the bottom surface of said platform and ahead of said slot, the two end portions of said first fixing strip are deformable, said first knife has two protruding bodies set on the blade thereof, said protruding bodies are perpendicular to the blade, and when the two end portions of said first fixing strip is deformed, said protruding bodies are pushed upwards by said first fixing strip through the resilience force of said first fixing strip such that said first knife is confined in said front grooves of said foot planks.