Vacuum pump rotor

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Description

FIG. 1 is a top plan view of a vacuum pump rotor showing my new design;

FIG. 2 is a front view thereof (rear view is the same as the front view);

FIG. 3 is a right side view thereof (left side view is the same as the right side view);

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a cross-sectional view taken along the line 5—5 of FIG. 2.

Claims

The ornamental design for a vacuum pump rotor, as shown and described.

Referenced Cited
U.S. Patent Documents
D258588 March 17, 1981 Sugiura
D258589 March 17, 1981 Sugiura
D264675 June 1, 1982 Inaga et al.
D268112 March 1, 1983 Sugiura
D353600 December 20, 1994 Glass
D443281 June 5, 2001 Sodergard
Patent History
Patent number: D471208
Type: Grant
Filed: Dec 18, 2000
Date of Patent: Mar 4, 2003
Assignee: Kashiyama Kougyou Industry Co., Ltd. (Tokyo)
Inventor: Matsumi Iwane (Komoro)
Primary Examiner: Ralf Seifert
Attorney, Agent or Law Firm: Armstrong, Westerman & Hattori, LLP
Application Number: 29/134,208
Classifications
Current U.S. Class: Pump Or Compressor (D15/7)
International Classification: 1502;