Extraction vacuum manifold

- Supelco, Inc.
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Description

FIG. 1 is a front elevational view of an extraction vacuum manifold showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 6 is a top and right front perspective view of another embodiment of our new design of FIGS. 1-5, wherein the sole difference is that the base plate support is omitted.

Referenced Cited
U.S. Patent Documents
D109217 April 1938 Jones
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D211359 June 1968 Salsgiver
D226847 May 1973 King
D238887 February 1976 O'Neal et al.
D266151 September 14, 1982 Dawson
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T986008 September 4, 1979 Gordon
3265214 August 1966 Brodsky
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4065384 December 27, 1977 Pandey
4141833 February 27, 1979 Cummins
4272381 June 9, 1981 Kremer
4346001 August 24, 1982 Tyihak
Other references
  • Supelco, Inc. Catalog 24 (1986) p. 187. J. T. Baker Chemical Company Catalog, pp. 16-18.
Patent History
Patent number: D289861
Type: Grant
Filed: Apr 28, 1986
Date of Patent: May 19, 1987
Assignee: Supelco, Inc. (Bellefonte, PA)
Inventors: George D. Wachob (State College, PA), Robert W. Rightnour (Mingoville, PA)
Primary Examiner: Nelson C. Holtje
Attorney: Louis F. Kline, Jr.
Application Number: 6/857,801