Extraction hood for use in an extraction system to exhaust fumes from a work station
Latest AB Ph. Nederman & Co. Patents:
FIG. 1 is a front, top, and left side perspective view of an extraction hood for use in an extraction system to exhaust fumes from a work station, showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a front, top and left side perspective view of an extraction hood for use in an extraction system to exhaust fumes from a work station, showing my new design with the side flaps and top flap in forwardly extending position;
FIG. 8 is a rear elevation view of FIG. 7;
FIG. 9 is a bottom plan view of FIG. 7;
FIG. 10 is a top plan view of FIG. 7;
FIG. 11 is a front elevation view of FIG. 7; and,
FIG. 12 is a right side elevation view of FIG. 7.
D231615 | May 1974 | Nygard |
380500 | April 1888 | Linscott |
398968 | March 1889 | Jones et al. |
404194 | May 1889 | Holm |
2905073 | September 1959 | Aveni |
3082680 | March 1963 | Nevin et al. |
3520115 | July 1970 | Bowen |
4584929 | April 29, 1986 | Jarmyr et al. |
143538 | September 1981 | DKX |
2334432 | July 1977 | FRX |
8702139 | May 1987 | SEX |
- Optic-Aire Systems, Inc. Adv. Brochure, .COPYRGT.1968, back cover, fume hood, upper left side of page. Swedish Brochure "Bahco Toronado Platsutsugbho", 1983. Soviet Publication #SU-916,913 "Soviet Inventions Illustrated", 1983.
Type: Grant
Filed: Jul 24, 1990
Date of Patent: Jan 5, 1993
Assignee: AB Ph. Nederman & Co. (Helsingborg)
Inventor: Hakan R. Karlsson (Eslov)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Bacon & Thomas
Application Number: 7/556,811