Luminometers with sample container displacement controlled by ramped abutment
AssigneeDynatech Corporation
InventorsDavid A. Stafford, Ian R. Johnson, Clive Goodfield
Life of this patent
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AssigneeDynatech Corporation
InventorsDavid A. Stafford, Ian R. Johnson, Clive Goodfield
Estimating the term…
A luminometer comprises a body which is formed with a bore for receiving a sample container and a cavity communicating with the lower end of the bore. A control device having a part-circumferential ramp is rotatable within the cavity for displacing the sample container along the bore to and from a test position in which the sample container is exposed to a photo-multiplier device. The control device is rotated by a cap which is coupled to the control device and which covers the upper end of the bore in light-tight manner as the control device lowers the sample container to the test position.
A luminometer comprising a body formed with a bore having at one end an entry aperture through which a sample container may be introduced into the bore, a photo-multiplier device remote from said entry aperture, control means for effecting displacement of the sample container along the bore to and from a test position where it is exposed to the photo-multiplier device, and a movable cap which is so coupled to the control means that operation of the control means to displace the sample container to the test position is accompanied by movement of the cap to cover said entry aperture in a light-tight manner.
A luminometer comprising a body formed with a bore having at one end an entry aperture through which a sample container may be introduced into the bore, control means rotatable relative to the body for gradually displacing the sample container along the bore to and from a test position, a photo-multiplier device for detecting or measuring light emissions from the sample container when the latter is in the test position, and closure means for closing the entry aperture in a light-tight manner as the control means displaces the sample container to the test position.
Dependencies are inferred from the claim text.