Combined seal-off valve body and cap

- Cryolab
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Description

FIG. 1 is a top plan view of the combined seal-off valve body and cap of our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a perspective view thereof, with a portion broken away for convenience of illustration; and,

FIG. 4 is a side elevational view thereof, the other sides being the same as the side shown.

Referenced Cited
U.S. Patent Documents
D226524 March 1973 Brindisi
D226605 April 1973 Brindisi
D232360 August 1974 Watts
D266019 August 31, 1982 Crossman
D278551 April 23, 1985 Crossman
2619982 December 1952 Turner
3113172 January 2196 Barr
3820554 June 1974 Harnish
3844310 October 1974 Brindisi
4261386 April 14, 1981 Young
Patent History
Patent number: D299950
Type: Grant
Filed: Aug 19, 1985
Date of Patent: Feb 21, 1989
Assignee: Cryolab (San Luis Obispo, CA)
Inventors: Mark A. Canaan (San Luis Obispo, CA), Joseph H. Nichols (San Luis Obispo, CA)
Primary Examiner: James R. Largen
Attorney: Daniel C. McKown
Application Number: 6/766,541
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)