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:
Jan. 17, 1984
Filed:
Apr. 28, 1982
Applicant:
Inventor:
Arne I Johansson, 840 70 Hammarstrand, SE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ; G05B / ; G05D / ;
U.S. Cl.
CPC ...
422112 ; 49394 ; 49449 ; 422114 ; 422116 ; 422117 ; 422118 ; 422296 ;
Abstract
A fail-safe device for a pressure vessel includes a blocking device for a lid thereof, which blocking device is locked by means of a first locking device sensing the internal pressure in the vessel. This device in its turn is provided with a second locking device which works independently by sensing pressure or temperature inside the vessel and locks the first locking device in its locked position whenever pressure or temperature is dangerously high inside the vessel. The object is to assure a safe closing of the lid which is both foolproof and fail-safe.