Flexible joint

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Description

FIG. 1 is a front view of a flexible joint.

FIG. 2 is a rear view of the flexible joint.

FIG. 3 is a top plan view of the flexible joint.

FIG. 4 is a bottom plan view of the flexible joint.

FIG. 5 is a left side view of the flexible joint.

FIG. 6 is a right side view of the flexible joint; and,

FIG. 7 is a perspective view of the flexible joint.

Referenced Cited
U.S. Patent Documents
3476413 November 1969 Coberly et al.
4756639 July 12, 1988 Hoshino
4906122 March 6, 1990 Barrett et al.
5052849 October 1, 1991 Zwart
5375939 December 27, 1994 Brown et al.
Foreign Patent Documents
938464 November 1995 JPX
Patent History
Patent number: D424920
Type: Grant
Filed: Oct 1, 1999
Date of Patent: May 16, 2000
Assignee: Waterworks Technology Development Forganization Co., Ltd. (Osaka)
Inventors: Taichi Sato (Nagaokakyo), Yasushi Fujita (Hyogo-ken)
Primary Examiner: Holly Baynham
Law Firm: Knobbe, Martens, Olson & Bear, LLP
Application Number: 0/111,769
Classifications
Current U.S. Class: D/8382
International Classification: 0808;