Vacuum cleaner with combined filter element and collection unit
Patent 5664285 Issued on September 9, 1997. Estimated Expiration Date: 
January 11, 2016. 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.
January 11, 2016. 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 ReferencesInventorsAssigneeApplicationNo. 584650 filed on 01/11/1996US Classes:15/352, Separator element cleaning in situ and/or storage or removal of retained dirt15/347, With dust or dirt handling or storing or separating, e.g., filter bags55/427, Adjustably mounted55/429Separable collection containerExaminersPrimary: Scherbel, David A.Assistant: Till, Terrence R. Attorney, Agent or FirmForeign Patent References
International ClassesA47L 009/10A47L 009/20 AbstractA vacuum cleaner with a removable collection module. The module has a combined collection assembly and filter element. The collection assembly has a one-piece frame and a cover attached to an open rear end of the frame. The filter element is permanently attached to the cover on an interior side. The cover has ribs that space the filter element from a rear side of the cover and form an air flow space between the filter element and the cover. The cover is mounted on a flange of the frame with a frictional airtight connection.Field of SearchWith dust or dirt handling or storing or separating, e.g., filter bagsWith receiver for dirt from rotary or moving agitator Separator mounted on or attached to manipulating handle, e.g., push broom type Handle movable relative to floor tool air exhaust conduit Separator element cleaning in situ and/or storage or removal of retained dirt Baffle intermediate concentrate collector zone and gas outlet conduit Adjustably mounted Separable collection container | |
