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Class Information
Number: 454/64
Name: Ventilation > Workstation ventilator (e.g., hood, offtake, etc.) > Movable > Having sliding, communication, airway duct sections
Description: Subject matter comprising two or more connected air carrying conduit sections which move relative to one another by a smooth, gliding motion.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7316720 |
Securing device for a filter element |
Jan. 8, 2008 |
| 7273413 |
Vehicle exhaust system hose and coupling assembly |
Sep. 25, 2007 |
| 7086941 |
Multiposition vehicle exhaust recovery system |
Aug. 8, 2006 |
| 6764394 |
Extraction arm |
Jul. 20, 2004 |
| 6361427 |
Drive arrangement for an extracting device, especially for exhaust gases from motor vehicles |
Mar. 26, 2002 |
| 6306031 |
Firehouse exhaust system |
Oct. 23, 2001 |
| 5791980 |
Telescoping exhaust tube assembly |
Aug. 11, 1998 |
| 5738148 |
Universal connector hose for joining an extractor to an element for extracting fumes from a factory workplace |
Apr. 14, 1998 |
| 5735737 |
Electric current carrying conduit mounted on sealing strip at exhausting devices |
Apr. 7, 1998 |
| 5733187 |
Personnel lift for use in spray booth sytems |
Mar. 31, 1998 |
| 5655962 |
Continuous seal vehicular exhaust distribution system for building |
Aug. 12, 1997 |
| 5630751 |
Firehouse exhaust recovery system |
May. 20, 1997 |
| 5556332 |
Air duct for a position adjustable service panel |
Sep. 17, 1996 |
| 5516329 |
Hood and duct system for textile equipment |
May. 14, 1996 |
| 5487766 |
Portable air filtration apparatus |
Jan. 30, 1996 |
| 5391110 |
Exhaust gas discharge apparatus |
Feb. 21, 1995 |
| 5380246 |
Dust suction apparatus |
Jan. 10, 1995 |
| 5319990 |
Cover system utilizing band |
Jun. 14, 1994 |
| 5303659 |
Down draft work table |
Apr. 19, 1994 |
| 5222906 |
Exhausting device |
Jun. 29, 1993 |
| 5180330 |
Apparatus for generating at least one jet of gaseous fluid |
Jan. 19, 1993 |
| 5136857 |
Air conditioning system for use in aeroplane hangar |
Aug. 11, 1992 |
| 5127875 |
Suction device for the exhaust gases of motor vehicles |
Jul. 7, 1992 |
| 5069115 |
Exhaust-gas removal duct formed from individual axially mutually adjacent sections for track-forming lanes |
Dec. 3, 1991 |
| 4945891 |
Drive mechanism for retractable down draft vent |
Aug. 7, 1990 |
| 4926746 |
Work chamber with shifting ventilation zone |
May. 22, 1990 |
| 4889104 |
Air extractor arrangements |
Dec. 26, 1989 |
| 4787298 |
Method and apparatus to consolidate room and point exhaust with a single fan |
Nov. 29, 1988 |
| 4762054 |
Exhaust extraction rail assembly |
Aug. 9, 1988 |
| 4724751 |
System for exhausting and collecting gases, in particular motor vehicle exhaust gases in assembly or factory halls |
Feb. 16, 1988 |
| 4714010 |
Industrial exhaust ventilation system |
Dec. 22, 1987 |
| 4660465 |
System for exhausting and collecting gases, in particular motor vehicle exhaust gases in assembly or factory halls |
Apr. 28, 1987 |
| 4650171 |
Autopsy table |
Mar. 17, 1987 |
| 4389923 |
Exhaust apparatus for removing pollutants |
Jun. 28, 1983 |
| 4379548 |
Exhaust system especially for use in the cast house of a blast furnace |
Apr. 12, 1983 |
| 4233889 |
Track forming a gas-throughflow duct and provided with a movable gas passage unit |
Nov. 18, 1980 |
| 4173176 |
Device for transfer of air in one or the other direction between two places |
Nov. 6, 1979 |
| 4152844 |
Exhaust system for laundry dryer |
May. 8, 1979 |
| 4150605 |
Damper arrangement for a traveling spray booth |
Apr. 24, 1979 |
| 4117773 |
Ventilation system for the supply of air or exhaustion of fumes |
Oct. 3, 1978 |
| 4114864 |
Device for removal of smoke gases, dust and the like |
Sep. 19, 1978 |
| 4086847 |
Multi-position duct system |
May. 2, 1978 |
| 4038913 |
Hair spray exhaust system |
Aug. 2, 1977 |
| 4026200 |
Arrangement for supplying or removing gaseous substances to or from a movable object |
May. 31, 1977 |
| 3955484 |
Movable dust collecting duct |
May. 11, 1976 |
| 3941041 |
Updraft exhaust system |
Mar. 2, 1976 |
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