Universal silk screen coating machine
AssigneeThe Chromaline Corporation
InventorsRoderick D. Johnson, Jan N. Heath
Life of this patent
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Abstract
A universal coating machine includes a frame and means for securing either a holding means for a liquid emulsion or a means for supporting and supplying a film. The securing means is operatively connected to the frame. The securing means is rotatable between a first position and second position. The securing means is biased to return to the first position when the emulsion or film is being applied to the screen.
Claims12
A method of applying a film to a screen, comprising:
- (a) placing a film over a rotatable guide plate;
- (b) wetting a screen to ensure adhesion of the film to the screen and placing the screen overlying the plate, whereby a leading edge of the film contacts a lower portion of the screen;
- (c) applying force to the screen in a downward direction causing the plate to rotate from a first position to a second position;
- (d) maintaining the plate in a substantially fixed position;
- and
- (e) moving the screen, wherein the film is applied to the screen.
An apparatus for use in applying a film to a screen, the screen having a frame having a width and threads on one side of the frame, comprising:
- (a) means for supporting and applying a film;
- (b) means for mounting said support means and allowing said support means to rotate between a first position to a second position when in said second position, said supporting means being biased to return to said first position;
- (c) means for supporting and guiding the screen as the screen is moved over said supporting means whereby the film is applied on the threads of the screen when the supporting means is in the second position.
Dependencies are inferred from the claim text.