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:
Oct. 20, 2015
Filed:
Apr. 06, 2009
Masamitsu Sanada, Tokyo, JP;
Masatoshi Itadani, Tokyo, JP;
Masamitsu Sanada, Tokyo, JP;
Masatoshi Itadani, Tokyo, JP;
Eagle Industry Co., Ltd., , JP;
Abstract
To facilitate recycling and prevent rotation of constituent parts, a lip type seal has a first lip seal member constructed from a rubber-like elastic material, a metal-made retaining ring held at the first lip seal member without bonding, and a resin-made second lip seal member and a backup ring which are held at the retaining ring by caulking. The first lip seal member has a tubular portion, a radial portion, a seal lip, and a collar portion. The retaining ring has a cylinder portion, a first flange portion, and a second flange portion, and the second lip seal member and the backup ring are held between the first and second flange portions by caulking. A convex portion is provided at a position in the circumferential direction of the first flange portion, and the convex portion engages with the second lip seal member to prevent rotation of the second lip seal member.