Patent
Optical counting device
Jr. Frank C. Schulz
- 02 Aug 1983
8
TL;DR: An optical counting device of the type used for counting mineral particles suspended within a liquid, for example, ore float tailings, is described in this paper, where the counting chamber facilitates a random distribution of suspended particles over the gridiron, while the suspending medium is withdrawn into the absorbent pad.
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Abstract: An optical counting device of the type used for counting mineral particles suspended within a liquid, for example, ore float tailings. The counting device includes a plate imprinted with a gridiron in its mid-portion, an absorbent doughnut pad removably supported upon the plate and conformed such that the gridiron on the plate is in register with the open space of the doughnut pad and a doughnut housing having an open space at its mid-portion defining a counting chamber in register with the gridiron and open space of the absorbent pad. The counting chamber facilitates a random distribution of suspended particles over the gridiron, while the suspending medium is withdrawn into the absorbent pad.
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Citations
Patent
Apparatus for measurement of cell concentration in a biological sample employing a magnetic slide loading apparatus
Diarmaid H. Douglas-Hamilton,Thomas G. Kenny +1 more
- 17 Feb 1993
TL;DR: In this article, a magnetic slide loading is used with automated cell counting equipment or manual optical microscopes to measure the number of cells in a fluid biological sample and a cover slip is placed over the defined volume region creating an enclosed volume.
46
Patent
Microscope slide with removable layer and method
Gary W. Ferguson
- 28 Jun 1996
TL;DR: In this article, a slide for depositing for observation material under a microscope comprising a mounting surface to receive material for observation and a removable layer on the mounting surface formed with at least one opening in the removable layer to define at least a exposed region on the mounted surface for retaining material to be observed when the removable surface is detached.
37
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Process for manufacturing a cover glass with a viewing field
George Dimou,Thomas W. S. Pang +1 more
- 16 Sep 1996
TL;DR: In this paper, a process for imprinting viewing fields on a cover glass is described, where a grid is placed on the annealed cover glass and small openings define the viewing fields.
12
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Chamber for laser-based processing
Timothy M. Eisfeld,Manfred R. Koller,Bernhard O. Palsson +2 more
- 10 Sep 2001
TL;DR: In this article, the authors present a planar chamber for presenting biological specimens for imaging and to permit laser energy to be directed at selected particles, such as malignant cells, where at least 99.5 % of the surface is free from optical distortion.
8
Patent
Apparatus and method of conveying constituents
Alan L. Wozniak
- 19 Aug 2009
TL;DR: In this paper, an apparatus is disclosed for conveying microscopic constituents from a testing surface to a slide, where a plurality of markers are positioned on the transparent tape and an adhesive layer affixes the transparent paper to the slide for preserving and restraining the constituents.
7
References
Patent
Specimen carrying slide with runoff trough
Fish Nicholas J,Mutschmann Winifred Liu +1 more
- 17 Jan 1969
TL;DR: In this article, a cover slip is placed on the stepped shoulder of a model in a flat-rector-regular-cavity model to create a cover for the model.
27