Optical: systems and elements – Absorption filter – With support or frame
Patent
1996-07-24
2000-01-25
Spyrou, Cassandra
Optical: systems and elements
Absorption filter
With support or frame
359891, 359889, 359885, 359819, 359820, G02B 522, G02B 702
Patent
active
060184272
ABSTRACT:
A filter clamp for retaining a filter, comprising a frame having an aperture to accommodate the filter, a clamp member having a clamp opening for alignment with the aperture when the clamp is in a mounted position, and a connector having a plurality of openings spaced about the aperture of the frame and mating protrusions spaced about the clamp opening of the clamp member. At least two protrusions extend through their mating openings and have their free ends formed at an angle to the openings so as to retain the clamp member in a mounted position containing the filter between the periphery and the frame while allowing the clamp member to move laterally, longitudinally and upwardly in relation to the frame sufficient amounts to accommodate expansion and contraction of the filter.
REFERENCES:
patent: 2009145 (1935-07-01), Nathan
patent: 2401044 (1946-05-01), Brandt
patent: 2444520 (1948-07-01), Marsh
patent: 2498278 (1950-02-01), Kaplowitz
patent: 2503714 (1950-04-01), Eagle et al.
patent: 2589680 (1952-03-01), Denny
patent: 4381885 (1983-05-01), Coquin
patent: 4383735 (1983-05-01), Stravitz
patent: 4575230 (1986-03-01), Carson et al.
patent: 4823245 (1989-04-01), Leverte
patent: 5276556 (1994-01-01), Wang
patent: 5530547 (1996-01-01), Arnold
Fauci Brian Mark
Gillette Thomas Floyd
Chang Audrey
Crocker Palmela R.
Eastman Kodak Company
Spyrou Cassandra
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