Clean air supply means in a clean tunnel
Patent 4660464 Issued on April 28, 1987. Estimated Expiration Date: 
August 30, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 30, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2528087 2737879 3395972 3487766 3630138 Paint spraying assembly Spray booth assembly for washing or chemically treating objects of desired kind Patent #: 4338958 InventorAssigneeApplicationNo. 06/771223 filed on 08/30/1985US Classes:454/187, CLEAN ROOM104/139, TRUCK IN CONDUIT118/326, With hood or offtake for waste material454/228, HAVING FORCED RECIRCULATION55/385.2, In environmental air enclosure55/473Impeller upstream of separating mediaExaminersPrimary: Joyce, HaroldAttorney, Agent or FirmInternational ClassF24F 3/16 (20060101)Foreign Application Priority Data1984-09-03 JPAbstractA plurality of air blowers spaced with each other are disposed along a side wall of a clean tunnel, thereby outer air is supplied into a tunnel zone by way of a filter. A clean air produced within the tunnel zone is circulated by disposing air outlets and a suction port in a zone of each blower. Thus, a constant clean air flow can be circulated without raising the temperature of the clean air within the clean tunnel. | |
