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.

Date of Patent:
May. 24, 1977

Filed:

Oct. 01, 1975
Applicant:
Inventors:

Jacques Decours, Arpajon, FR;

Jean Gavinet, Orsay, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21C / ;
U.S. Cl.
CPC ...
72 54 ; 72273 ; 92183 ;
Abstract

The sealing device comprises two interengaged members forming a clearance space in which is imprisoned a deformable seal for ensuring pressure-tightness between the members and the internal surface of the press chamber. The member which is in contact with the liquid medium under hydrostatic pressure comprises means for establishing pressure equilibrium within the press chamber and within the clearance space immediately after deformation of the seal.


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