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1764results about How to "The process is simple and convenient" patented technology

Upright vacuum cleaner with cyclonic airflow

InactiveUS6848146B2Easily and conveniently emptied dirt cupEffective filteringCleaning filter meansCombination devicesHEPACyclone
A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an outlet of the cyclonic chamber, and establishes a suction airstream that enters said main suction opening, passes through said cyclonic chamber, and passes to an outlet of said suction source. A substantial portion of particulates entrained in the suction airstream are separated therefrom when said suction airstream moves in a cyclonic fashion through the cyclonic chamber. A main filter assembly, preferably including filter medium comprising polytetrafluoroethylene (PTFE), is located in the cyclonic chamber so that a suction airstream moving from the main suction opening to the inlet of said suction source by way of the cyclonic airflow chamber passes through the filter medium thereof after said airstream moves in a cyclonic fashion within the cyclonic airflow chamber to remove residual particulates from the suction airstream before it leaves the cyclonic chamber. A HEPA filter can be provided to filter the suction airstream exhausted through the outlet of the suction source prior to the airstream being discharged from the vacuum.
Owner:ROYAL APPLIANCE MFG

Apparatus, systems and methods for online, multi-parcel, multi-carrier, multi-service parcel returns shipping management

The present invention provides a computer system (the “System”, or the “Return System”) that is configured and programmed to provide online stores with a fast, simple, convenient way for eCommerce customers of an online store to return merchandise purchased from that store from within that online store. The Return System provides multi-carrier shipment rating, shipment labeling, shipment tracking, shipment tracking management reports, returns analysis and returns management reporting In an exemplary embodiment, the Return System has three major components: 1.) A Returns Manager Subsystem that provides a user interface to each Merchant to setup the Merchant's account, setup the Merchant's return policy and rules, and to monitor the status and movement of return shipments; 2.) A Consumer Returns Subsystem (also sometimes referred to as a “Customer Returns Subsystem”) that provides each consumer using the Returns System with an online user interface that leads the consumer through the returns process, displays the return policies and rules to the consumer, provides shipping document to ship the return package if appropriate, and permits the consumer to track their return shipments; and 3.) a Returns Processing Subsystem that, in the exemplary embodiment, provides background shipping and tracking functionality. In one exemplary embodiment of the present invention, the Online Merchant integrates the Merchant's online system with the Returns Processing Subsystem. In another exemplary embodiment, the Returns Processing Subsystem is provided as an independent web-based application service (referred to as a “Return Merchant Service System”) operated by a common provider. In such an embodiment, the Merchant's system interacts with the Return Merchant Service System through Application Program Interfaces (“API”).
Owner:ISHIP +1

Permanent magnet synchronous motor control method and system based on encoder automatic zero set

The invention discloses a permanent magnet synchronous motor control method based on encoder automatic zero set. An improved high-frequency voltage injection method is used for detecting the initial position of a rotor, the initial position of the rotor is clear, voltage vectors can be applied conveniently, and a motor rotor reverse rotating phenomenon is avoided. Meanwhile, encoder zero compensation is carried out automatically, a compensation value is stored, direct calling in the future is convenient, and trouble of manual zero set is removed. Once calibration or zero reset is needed, operation through the method is carried out for one time, an encoder is subjected to accurate zero set again, a process is simple, and accuracy is high. The invention further discloses a control system which achieves the control method. After the initial position of the rotor is obtained through a rotor locating module, a voltage vector closest to the position is chosen to be applied, so that a rotor back-and-forth vibration phenomenon during locating is avoided, a high-frequency voltage signal is injected only before the rotor is located initially, phase lag and time lag cannot be brought to system operation, and noise cannot be introduced during operation.
Owner:ZHEJIANG UNIV
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