Condition indicator

Claim 1

In a pushbutton assembly wherein the pushbutton has first and second positions and is operated through an aperture in a wall, a device for visually displaying said positions comprising: a housing adapted for movement between said first and second positions along an axis substantially perpendicular to said wall, said housing having an apertured side portion; a lens attached to an end of said housing, said lens having a magnifying portion and a reducing portion; a springlike member having a first end secured in said housing, a second flag-shaped end disposed in said housing adjacent to said lens, and a central portion having a camming surface extending through the aperture in the side portion of said housing; said flag-shaped end having first and second indicia-bearing portions which are simultaneously displayed through said lens; said first and second indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively, by the engagement of said camming surface with the edge of the aperture of said wall when the pushbutton is moved into said first position, thereby to emphasize the display of said first indicia-bearing portion and deemphasize the display of said second indicia-bearing portion; and said second and first indicia-bearing portions being moved into position for display through the magnifying and reducing portions of said lens, respectively by the disengAgement of said camming surface from the edge of the aperture of said wall when the pushbutton is moved into said second position, thereby to emphasize the display of said second indicia-bearing portion and deemphasize the display of said first indicia-bearing portion.