Air scrubber unit for use in removal of pollutants from the air

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a right side view of an air scrubber unit for use in removal of pollutants from the air showing my new design, the left side being identical to that shown;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a rear view thereof.

Referenced Cited
U.S. Patent Documents
692255 February 1902 Doolan
973120 October 1910 Lloyd
1657822 January 1928 Frechou
1790975 February 1931 Dallas et al.
1993175 March 1935 Libbey et al.
2585440 February 1952 Collins
2603354 July 1952 Way et al.
2716489 August 1955 Way
2879893 March 1959 Stebbins
3282432 November 1966 Greenleaf, Jr.
3312348 April 1967 Greenleaf, Jr.
3768234 October 1973 Hardison
3936281 February 3, 1976 Kermeier
4039307 August 2, 1977 Bondor
4157962 June 12, 1979 Huang et al.
4211656 July 8, 1980 Cochrane
4251486 February 17, 1981 Sohda
4588535 May 13, 1986 Foidl
4642188 February 10, 1987 DeVisser et al.
Foreign Patent Documents
658750 April 1938 DE2
25116 1931 NLX
Patent History
Patent number: D347469
Type: Grant
Filed: May 31, 1991
Date of Patent: May 31, 1994
Assignee: Davis Water & Waste Industries, Inc. (Tallevast, FL)
Inventor: David J. Hunniford (Sarasota, FL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Nixon & Vanderhye
Application Number: 7/708,624
Classifications
Current U.S. Class: Air Cleaner (D23/364)