Rollably positioned, adjustably directed, clean air supply assembly unit

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Description

FIG. 1 is a perspective view of a rollably positioned adjustably directed, clean air supply assembly unit;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a back side view thereof;

FIG. 5 is a top side view thereof; and,

FIG. 6 is a bottom side view thereof.

The cross-hatching in FIGS. 1 and 6 represents a mesh screen and is understood to extend uniformly throughout the area represented.

Referenced Cited
U.S. Patent Documents
3820536 June 1974 Anspach, Jr. et al.
3935803 February 3, 1976 Bush
4512245 April 23, 1985 Goldman
4531956 July 30, 1985 Howorth
4563943 January 14, 1986 Bertelsen
4647295 March 3, 1987 Christ
4775001 October 4, 1988 Ward et al.
Patent History
Patent number: D427299
Type: Grant
Filed: Jul 22, 1998
Date of Patent: Jun 27, 2000
Inventor: William J. Haslebacher (Bellevue, WA)
Primary Examiner: Lisa Lichtenstein
Attorney: Roy E. Mattern, Jr.
Application Number: 0/91,104
Classifications
Current U.S. Class: Air Cleaner (D23/364); Air Treatment (D23/355)
International Classification: 2304;