Manually operated shutter attachment

Details Manually operated shutter attachment Manually operated shutter attachment

1976-04-15

1977-12-13

O'Connor, Edna M.

350256, 350315, 354295, G03B 926, G02B 702, G02B 522

Patent

active

040632636

ABSTRACT:
A manually operated shutter attachment includes a pair of plate members each having an aperture therethrough secured in spaced parallel relationship with the apertures aligned. A blade member having a body portion and handle portion is pivotably mounted intermediate the plate members with the handle portion extending outwardly of the spacing therebetween whereby the body portion may be pivoted into and out of registration with the aligned apertures in the plate members by manual manipulation of the handle portion. Mounting means are provided on the outer surfaces of both plate members and extend about the apertures thereof for mounting the shutter attachment intermediate a telescope and camera and/or for securing a plurality of similar shutter attachments together. The body portion of the blade member may be opaque to provide a shutter or incorporate an optical filter or lens.

REFERENCES:
patent: 2184831 (1939-12-01), Campbell
patent: 2199998 (1940-05-01), Hutcheson, Jr.
patent: 2482571 (1949-09-01), Arnold
patent: 2496408 (1950-02-01), Polance
patent: 3048079 (1962-08-01), Dene et al.
patent: 3590714 (1971-07-01), Schops
patent: 3682075 (1972-08-01), Profitt
patent: 3833295 (1974-09-01), Bebb et al.
patent: 3893138 (1975-07-01), Frode

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