Frame for convex mirror

Details Frame for convex mirror Frame for convex mirror

1976-02-19

1977-06-14

Corbin, John K.

350303, G02B 510

Patent

active

040293998

ABSTRACT:
A mounting plate of generally semi-circular plan shape is provided and includes one straight side edge and an opposing arcuate side edge whose opposite ends converge toward the ends of the straight side edge. The arcuate side edge of the mounting plate includes outturned flange portions which terminate outwardly in inturned flange portions and the front side of the plate includes a pair of generally parallel reinforcing flanges extending outwardly therefrom and disposed at generally right angles to the straight side edge of the mounting plate and the mounting plate. The outer marginal portions of the flanges are arcuate and curve inwardly from the ends of the flanges adjacent the straight side edge of the mounting plate toward the mounting plate adjacent the arcuate side edge of the mounting plate. A partial convex spherical mirror element of generally semi-circular plan shape is disposed in registry over the front side of the mounting plate with the arcuate edge of the mirror element received in the aforementioned upturned flange portions of the arcuate side edge of the mounting plate. In addition, the outer marginal edges of the flanges abut the back or undersurface of the mirror element for bracing the same and a cap plate is provided including a first straight longitudinal edge portion and a second outwardly convex arcuate edge portion. The cap plate is secured over the straight side edge of the mounting plate and the corresponding edge of the mirror element and includes flange portions embracingly engaging the straight side edge of the mounting plate and the corresponding edge of the mirror element.

REFERENCES:
patent: 3170985 (1965-02-01), Katulich
patent: 3389952 (1968-06-01), Tobin, Jr.
patent: 3563638 (1971-02-01), Panozzo
patent: 3901587 (1975-08-01), Haile
patent: 3918799 (1975-11-01), Kurz, Jr. et al.

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