The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1991
Filed:
May. 11, 1990
Reinhard Lihl, Vienna, AT;
Reichert-Jung Optische Werke A.G., Vienna, AU;
Abstract
A cooling chamber on a microtome has an internal space which is observable and accessible from above and which accommodates an object holder and a tool for processing the object. The cooling chamber structure also includes a supply tank for accommodating a liquid cryogenic agent, the tank communicating with the cooling chamber space by way of a downwardly leading feed conduit for evaporated gaseous cryogenic agent. The feed conduit is directly in the form of a heater which can produce a controllable heating action so that the gaseous cryogenic agent can be heated along its flow path from the tank into the cooling chamber space, to provide for uniform temperature distribution in the cooling chamber space.