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:
Feb. 27, 1990
Filed:
Dec. 21, 1987
Applicant:
Inventor:
Etienne Ombredane, Bure sur Yvette, FR;
Assignee:
Thomson-CGR, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D / ; B61F / ;
U.S. Cl.
CPC ...
277171 ; 277174 ; 277177 ; 277901 ;
Abstract
A sealing device for an enclosure containing an expandable fluid, particularly for high-voltage connectors, ensures fluid-tightness over a broad temperature range and provides a safety function by accommodating variations in volume of the fluid by the use of an O-ring seal displaceably clamped within an annular recess. A sectional length L1 of the recess in which the seal can take up n positions is constituted by an initial-clamping space and by a clearance space into which the seal can penetrate under the pressure of fluid.