Laser smoke particulate/odor filter unit for use in surgical environments

Description

FIG. 1 is a perspective view of a laser smoke particulate/odor filter unit for use in surgical environments showing the new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a front elevational view, the rear being substantially a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D117566 November 1939 Koehler
D291593 August 25, 1987 Robertson
1716479 June 1929 Bilsky
2055774 September 1936 Ray
2100051 November 1937 Hallner
3675398 July 1972 Giarrizzo
Foreign Patent Documents
105159 October 1964 NOX
Patent History
Patent number: D304612
Type: Grant
Filed: Jan 12, 1987
Date of Patent: Nov 14, 1989
Assignee: W. Stackhouse Associates, Inc. (El Segundo, CA)
Inventors: Wyman H. Stackhouse (Manhattan Beach, CA), Ian M. Williamson (Redondo Beach, CA)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Singer & Singer
Application Number: 7/2,185
Classifications
Current U.S. Class: Filter (D23/365)