Resources Contact Us Home
Fan Retention system

Image Number 2 for United States Patent #6224340.

A fan retention system for a blower/vacuum securely retains the fan and creates an insulating barrier to prevent the operator from touching the functionally insulated armature shaft. A nut having interlocking ramps for interlocking with interconnecting portions on an abutting fan surface is provided. The interconnecting portions of the fan may be either ramps or recesses. Furthermore, the nut has a closed end for insulating the armature shaft from the operator.

  Recently Added Patents
Method and apparatus for internet on-line insurance policy service
Image manipulating system and method
Cooling structure for electronic device
Stereoscopic editing for video production, post-production and display adaptation
Defect inspection method and device therefor
  Randomly Featured Patents
Moistening device for envelope flaps
Gravity clarifier
Fabric cup holder for collapsible chair
Methods and compositions for diagnosing and treating arthritic disorders and regulating bone mass
Method for producing target substance
Electroacoustic transducer
Conveyor panel with indicia and method of presentation
Device for transmitting acoustic waves through a liquid medium
Complementary insulated gate field effect transistor structure and process for fabricating the structure
Providing extended memory protection