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. 20, 2009
Filed:
Sep. 13, 2002
Holger Jordan, Neuhausen, DE;
Holger Jordan, Neuhausen, DE;
Trelleborg Sealing Solutions Germany GmbH, Stuttgart, DE;
Abstract
A high-pressure sealing arrangement is provided for sealing a gap () between two concentric machine parts () which can be moved relative to each other, of which a first machine part () comprises a groove () and a second machine part () comprises an outer peripheral surface () opposite the groove (). A sealing ring () of an extrusion-resistant material and a tensioning ring () of an elastomeric material are provided in the groove (). A shaped section of the sealing ring () on the low-pressure side can be deflected towards the outer peripheral surface () under fluid pressure load. When the pressure decreases, the pressure-dependent deflection of the sealing ring () automatically returns towards the initial, unpressurized state of the sealing ring (). The sealing ring (), viewed in cross-section and in the unpressurized state, has a shaped sealing ring surface () facing the outer peripheral surface (), which merges at least with respect to the shaped section on the low-pressure side, into a shoulder surface () separated from the outer peripheral surface () at a first separation d, which merges into a shoulder surface () side surface () with a second, larger separation dfrom the outer peripheral surface ().