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:
Aug. 18, 1981
Filed:
Mar. 13, 1980
Jorg Durrer, Oberengstringen, CH;
Cornelius Mayer, Fallanden, CH;
Werkzeugmaschinenfabrik Oerlikon-Buhrle AG, Zurich, CH;
Abstract
In order to eliminate or suppress external weather effects from acting upon the objective lens system or arrangement of an aiming periscope installed at an armed combat vehicle, a part which protrudes out of the combat compartment or space of the vehicle is surrounded by a protective globe or hood. Between the protective globe or hood and the protruding part there are provided air channels, by means of which there can be conveyed an air current past the objective lens system towards the outside. Advantageously, the excess pressure emanating from the combat compartment is employed for generating the air current or flow. Apart from the weather protection which is thus provided for the objective lens system there also is afforded a temperature compensation within the aiming periscope.