Valve actuator

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Description

FIG. 1 is a perspective view taken from above and to the left of a valve actuator showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view, the rear elevational view being a mirror image thereof; and,

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D235642 July 1925 Erickson
D286907 November 25, 1986 Hilpert et al.
D287268 December 16, 1986 Hilpert et al.
D322657 December 24, 1991 Hartman et al.
2731534 January 1956 Hansen et al.
3084901 April 1963 Thorburn
3516442 June 1970 Munroe
3719199 March 1973 Mentink
3719343 March 1973 Werra
3958592 May 25, 1976 Wells et al.
4027692 June 7, 1977 Bouteille et al.
4354425 October 19, 1982 Bruton et al.
4364414 December 21, 1982 Bouteille et al.
4569378 February 11, 1986 Bergandy
4582082 April 15, 1986 Tosseghini
4889153 December 26, 1989 Zepernick et al.
4930555 June 5, 1990 Rudick
4977922 December 18, 1990 McWilliams
4986299 January 22, 1991 Schultz
5275014 January 4, 1994 Solomon
Other references
  • Fisher Controls, "Type 657 and 667 Diaphragm Acutators", Bulletin 61.1:657, Apr. 1992. Fisher Controls, "470 Series Piston Actuators", Bulletin 61.2:470, Jul. 1993. Fisher Controls, "Type 585 and 585R Piston Actuators", Bulletin 61.2:585, Jul. 1993.
Patent History
Patent number: D363761
Type: Grant
Filed: Jun 2, 1994
Date of Patent: Oct 31, 1995
Assignee: Fisher Controls International, Inc. (Clayton, MO)
Inventors: Philip W. Eggleston (Marshalltown, IA), Randy J. Hall (Marshalltown, IA)
Primary Examiner: Stella Reid
Assistant Examiner: E. Watterson
Law Firm: Marshall, O'Toole, Gerstein, Murray & Borun
Application Number: 0/23,894
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)