Air intake mechanism for air filter machines

• US 2,550,384 A
• Filed: 12/27/1948
• Issued: 04/24/1951
• Est. Priority Date: 12/27/1948
• Status: Expired due to Term

• Current Assignee: Edgar P. Senne
• Original Assignee: Edgar P. Senne
• Inventors: Senne, Edgar P.
• Application Number:
  US03/067,497
• Time in Patent Office: 848 Days
• US Class Current: 55/356
• CPC Class Codes: A47L 5/36 Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
• CPC Class Codes: A47L 9/009 Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
• CPC Class Codes: A47L 9/14 Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
• CPC Class Codes: A47L 9/1427 Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters

Claims