Small volume ion chamber

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Description

FIG. 1 is a top, front perspective view of a small volume ion chamber showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear and side views being identical thereto; and,

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D82978 January 1931 Conkey
D83901 April 1931 Huffman
D91651 March 1934 Farmer
D106187 September 1937 Fleisch
D265924 August 24, 1982 Gehlke
D272086 January 3, 1984 Gehlke
D278603 April 30, 1985 Morgan et al.
D314514 February 12, 1991 Ten Eyck et al.
Other references
  • Hammacher Schlemmer Catalogue, p. 37, Home Pulsating Ionizer. Sharper Image Catalogue, p. 35, Travel Ion, top right side of page.
Patent History
Patent number: D327121
Type: Grant
Filed: Feb 14, 1991
Date of Patent: Jun 16, 1992
Assignee: Rad Elec, Inc. (Frederick, MD)
Inventors: Robert W. Ramsey, Jr. (Frederick, MD), Payasada Kotrappa (Walkersville, MD)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Cushman, Darby & Cushman
Application Number: 7/654,972
Classifications
Current U.S. Class: Air Treatment (D23/355)