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:
Dec. 21, 2004
Filed:
Aug. 09, 2001
Sebastien Huchet, Nantes, FR;
Jean Luc Bouhour, La Haye Foussiere, FR;
Bernard Marhic, Basse Goulaine, FR;
Trelleborg AB, Trelleborg, SE;
Abstract
A protective bellows formed by injection (blow) moulding has a large-diameter end with a fixing collar ( ) for sealingly embracing an externally tri-lobed surface of a housing of an articulation joint for a motor vehicle transmission. The fixing collar ( ) comprises a circumferential outer surface and an inner surface ( ). The inner surface ( ) is made up of part-circumferentially curved surface portions ( A, B, C) for engaging the three lobes of the housing, and three equi-angularly spaced inwardly curved integral surface portions ( A, B, C) which are shaped to engage the spaces or grooves between the three lobes on the housing. The resilient material between the outer surface ( ) and each inwardly curved surface portion ( A, B, C) is formed with several slots ( ) arranged with their depths directed in a radial direction. The slots ( ) aid the de-moulding process.