Measuring station for a photometer

Details Measuring station for a photometer Measuring station for a photometer

1983-10-26

1986-05-06

Kittle, John E.

Optics: measuring and testing

Sample, specimen, or standard holder or support

356246, G01N 2100, G01N 2101

Patent

active

045868182

ABSTRACT:
A measuring station for a photometer has an aperture which connects a measuring chamber and the environment and through which a sample vessel can be introduced into the measuring chamber and/or removed from the measuring chamber. The sample vessel is raised and lowered by a plunger which is adapted to seal against the aperture by means of a sealing element. The sealing element has a first position in which its periphery circumscribes a smaller area than the internal clear cross-section of the aperture, to permit the sample vessel to be lifted into the chamber. The sealing element can then be expanded radially into sealing engagement with the aperture to seal the plunger to the walls of the aperture to prevent ingress of light.

REFERENCES:
patent: 3588259 (1971-06-01), Harvey
patent: 3881826 (1975-05-01), De Leeuw
patent: 3881872 (1975-05-01), Naono
patent: 4121907 (1978-10-01), Roque
patent: 4240749 (1980-12-01), Retzer
patent: 4390274 (1983-06-01), Berthold et al.
patent: 4424279 (1984-01-01), Bohn et al.

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