The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2013
Filed:
Jan. 27, 2010
Scott Andrew Maguire, Malmesbury, GB;
Paul Dawson, Malmesbury, GB;
Matthew Charles Edward Wilson, Malmesbury, GB;
Scott Andrew Maguire, Malmesbury, GB;
Paul Dawson, Malmesbury, GB;
Matthew Charles Edward Wilson, Malmesbury, GB;
Dyson Technology Limited, Malmesbury, GB;
Abstract
A surface treating head assembly for an appliance such as a vacuum cleaner includes a head and a piston assembly operable to apply a force to the head. The piston assembly is connected to the main motor of the vacuum cleaner by a valve. When the valve is opened, suction airflow flows through tubes connecting the motor to the piston assembly. The resulting suction force causes the piston assembly to contract, thereby drawing the cleaner head downwards. Thus, the head is urged towards the floor surface so as to improve the efficiency of a cleaning operation.