Brush mounting and torsion spring support for powered nozzle
Patent 4014068 Issued on March 29, 1977. Estimated Expiration Date: 
March 29, 1994. 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.
March 29, 1994. 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 2205877 2348861 2874400 2938225 2948014 3821831 Vacuum cleaner nozzle Patent #: 3952363 InventorsApplicationNo. 05/564808 filed on 04/03/1975US Classes:15/355, With agitator adjustable relative to nozzle15/360, Urged away from contact with work15/373Retractable, i.e., selective useExaminersPrimary: Moore, Christopher K.AbstractA vacuum cleaner nozzle is provided having resilient means, disposed between it and its handle, to prevent displacement of the nozzle from the floor during cleaning and also having a litter collecting brush that is spring biased into floor engaging position and height adjustable so that the nozzle is usable on bare floor and carpeted surfaces. Height adjustment is occasioned by a reciprocal bar having dimpled camming surfaces formed integrally in its top surface, with this bar being lever actuated and including an indicating means to guide the user during cleaning. | |
