Internal adjustable tension frame for touch-sensitive boards

Details Internal adjustable tension frame for touch-sensitive boards Internal adjustable tension frame for touch-sensitive boards

1997-08-29

1998-12-29

Yan, Ren

Printing

Stenciling

Stencils

381023, B05C 1706

Patent

active

058529748

ABSTRACT:
A frame assembly comprises a rigid inner frame having a first perimeter; a plurality of independent outer frame members positioned outwardly of the inner frame to define a second perimeter larger than the first perimeter, the second perimeter defining a plane having a front face and a rear face; and a flexible sheet extending across the front face, around the outer frame members and secured in a fixed position on the rear face to define a plurality of longitudinally extending passageways adjacent the second perimeter, the outer frame members positioned in the passageways. A plurality of longitudinally extending members are mounted on at least a portion of the inner frame, each of the longitudinally extending members moveable between a first position and a second position and drivingly connected to the outer frame members whereby movement of a longitudinally extending member between the first and second positions causes at least a portion of one of the outer frame members to move outwardly thereby tensioning at least a portion of the flexible sheet.

REFERENCES:
patent: 2491600 (1949-12-01), Bearce
patent: 3359663 (1967-12-01), Black
patent: 3507062 (1970-04-01), Moyer
patent: 3828671 (1974-08-01), Fuchs
patent: 3949802 (1976-04-01), Buratovich
patent: 4041861 (1977-08-01), Alter
patent: 4289925 (1981-09-01), Lambden
patent: 4800947 (1989-01-01), Loomis
patent: 4922988 (1990-05-01), Loomis
patent: 5220867 (1993-06-01), Carpenter

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