Small volume ion chamber
Latest Rad Elec, Inc. Patents:
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
Other references
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. |
- 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
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)