Air sampling filter

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

FIG. 1 is a top front isometric view taken from one side of an air sampling filter showing my new design, with the filter element disposed in its holder;

FIG. 2 is a bottom rear isometric view thereof taken from the other side, with the filter element disposed in its holder;

FIG. 3 is an exploded top front isometric view thereof taken from one side, with the filter element removed from its holder;

FIG. 4 is an exploded bottom rear isometric view thereof taken from the other side, with the filter element removed from its holder.

Referenced Cited
U.S. Patent Documents
1499864 July 1924 Gordon
2077563 April 1937 Henry
2409278 October 1946 Hedges
2877863 March 1959 Lurie
3210229 October 1965 Feine
3395516 August 1968 Schecter et al.
3693457 September 1972 Pilat
3795135 March 1974 Anderson
3877895 April 1975 Wonderland et al.
3905787 September 1975 Roth
3938973 February 17, 1976 Kershaw
3953182 April 27, 1976 Roth
4080832 March 28, 1978 Moody et al.
4426214 January 17, 1984 Vandrish
4563333 January 7, 1986 Frigon
4749390 June 7, 1988 Burnett et al.
4961916 October 9, 1990 Lesage et al.
Patent History
Patent number: D316750
Type: Grant
Filed: Jun 15, 1988
Date of Patent: May 7, 1991
Assignee: Air Ventilation Observer, Inc. (Manhasset Hills, NY)
Inventor: Robert P. Savastano (Manhasset Hills, NY)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Attorneys: Jesse Rothstein, William F. Andes, Jr.
Application Number: 7/206,851
Classifications
Current U.S. Class: Filter (D23/365)