Valve

- Cryolab, Inc.
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Description

FIG. 1 is a top plan view of an ultra-high purity valve showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof with a portion shown in section, and

FIG. 6 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D271421 November 15, 1983 Fetterman
D277831 March 5, 1985 Bergstrom et al.
D284989 August 5, 1986 Fetty
D287871 January 20, 1987 Ritchie et al.
4232695 November 11, 1980 Roberge
4237920 December 9, 1980 Norman
4270727 June 2, 1981 Norman
4283041 August 11, 1981 Kujawski
4421298 December 20, 1983 Kujawski
4509721 April 9, 1985 Lassally
4513779 April 30, 1985 Owoc et al.
Patent History
Patent number: D301916
Type: Grant
Filed: Mar 24, 1986
Date of Patent: Jun 27, 1989
Assignee: Cryolab, Inc. (San Luis Obispo, CA)
Inventors: Randall E. Fisher (Morro Bay, CA), David L. Martindale (Los Osos, CA), Joseph H. Nichols (San Luis Obispo, CA)
Primary Examiner: James R. Largen
Attorney: Daniel C. McKown
Application Number: 6/845,768
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)