Valve positioner

Description

FIG. 1 is a rear elevation view of the valve positioner.

FIG. 2 is a front elevation view of the valve positioner.

FIG. 3 is a top plan view of the valve positioner.

FIG. 4 is a bottom plan view of the valve positioner.

FIG. 5 is a left side elevation view of the valve positioner.

FIG. 6 is a right side elevation view of the valve positioner; and,

FIG. 7 is an isometric view of the valve positioner.

Referenced Cited
U.S. Patent Documents
D179112 November 1956 Becker
D288469 February 24, 1987 Pryor
3590848 July 1971 Svenson
Patent History
Patent number: D409725
Type: Grant
Filed: Apr 16, 1998
Date of Patent: May 11, 1999
Assignee: Yamatake-Honeywell Co., Ltd. (Tokyo)
Inventors: Kofuku Ito (Yokohama), Yoshiro Honda (Yokohama)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Robin V. Taylor
Law Firm: Whitham, Curtis & Whitham
Application Number: 0/86,628
Classifications
Current U.S. Class: Pressure Regulating Or Relieving (D23/235)
International Classification: 2301;