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:
Jul. 05, 1994
Filed:
Jul. 01, 1991
Applicant:
Inventor:
Richard J Critchley, Near Chorley, GB;
Assignee:
British Nuclear Fuels plc, Warrington, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
414217 ; 118719 ; 414146 ; 49 63 ; 49116 ; 49366 ; 49327 ; 454187 ; 454195 ;
Abstract
An air lock system for the transfer of large containers into a containment comprises a set of horizontally and vertically slidable doors adapted to define a variable opening for the passage of containers. The set of doors cooperate with a further preceding set, which can be a single slidable door, to form an airlock. Ventilation means in the containment provide an inward air flow through the opening into the containment.