1975-08-08
1977-03-22
Corbin, John K.
G02B 510
Patent
active
040133516
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 straight side edge of the mounting plate includes a first flange extending therealong and projecting outwardly from one side of the mounting plate. The opposite or second arcuate side edge of the mounting plate includes outturned flange portions which terminate outwardly in inturned flange portions and a partial convex spherical mirror element of generally semi-circular plan shape is disposed in registry over the one side of the mounting plate with the arcuate edge of the mirror element receiving the aforementioned inturned flange portions. The outer edge of the first flange is arcuate and includes an inturned flange over which the corresponding edge of the mirror element is disposed. Further, a cap plate of generally the same shape as the first flange is secured in overlying relation relative to the latter and includes a free edge portion which projects beyond the outer edge of the first flange and the corresponding inturned flange underlying the mirror element. The outer edge of the cap plate, however, includes an inturned flange which closely overlies the adjacent marginal edge portion of the mirror element. In this manner, the mirror element is securely supported from the mounting plate in a manner enabling its ready removal merely by removal of the cap plate. Of course, suitable gasket material may be applied about the edges of the mirror element in order to cushion the support of the mirror element from the mounting plates and its component parts.
REFERENCES:
patent: 3170985 (1965-02-01), Katulich
patent: 3389952 (1968-06-01), Tobin
patent: 3563638 (1971-02-01), Panozzo
patent: 3764201 (1973-10-01), Haile
Corbin John K.
Henry Jon W.
Jacobson Harvey B.
O#Brien Clarence A.
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