C. Reichert Optische Werke Ag

Leica Ag

E. Reichert Optische Werke Ag

Heinrich Kleber

Hellmuth Sitte

Klaus Neumann

Ludwig Edelmann

Helmut Haessig

Anton Lang

Helmuth Sitte

Helmut Hassig

Terry W Cooper

Device for dehydrating and/or embedding samples

Chamber for freeze-drying by cryosorption

Apparatus for cooling a biological or medical specimen comprises a cooling bath, an injection device for injecting a specimen into cooling liquid in the bath at a velocity of between 5 and 15 m/sec, and a sleeve. The sleeve is movable between a lower position in the bath and an upper position for limiting the effects of splashing as a specimen enters the bath. The injection device comprises a closure plate for co-operating with the sleeve to further limit the effects of splashing. The sleeve is operatively associated with the injection device in a manner such that movement of a specimen carrier of the device towards the bath to immerse a specimen is initiated when the sleeve is moved from the lower position to the upper position.

Apparatus for cooling a biological or medical specimen

Cryogenic-fixation apparatus comprises a light source, a beam from which enter cooling liquid in a bath, through a window in the underside of the bath. The beam can be directed upwardly by means of a reflecting prism. When a lid of the bath is closed, the beam leaves the space defined by the path through an exit port in the lid, and is incident upon a specimen mounted on a specimen holder located above the exit port, the specimen holder being secured to an injector rod.

Cryogenic fixation apparatus

A microtome, in particular an ultramicrotome, having a specimen carrier which can be moved relative to a knife. The specimen carrier includes a clamping aperture for holding a specimen. A light source is located inside the clamping aperture in the specimen carrier so that light is transmitted, from the rear of the clamping aperture, through a specimen block which is composed of a transparent material and through the specimen.

Microtome with specimen illumination system

A specimen working chamber having heat-conductive walls instead of insulative walls is disclosed.

Cold chamber for the working objects for microscopic and electron

A joint having a plurality of spherical elements cemented to one member and the other member having adjustable sockets which cooperate with the spherical elements to permit rotation about a single axis. The joint is particularly useful in microtomes and ultramicrotomes.

Growing community of inventors

Vienna, Austria

Heinrich Kleber