Patents by Inventor Bob C. Miller

Bob C. Miller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6053968
    Abstract: A portable room air filter includes a rigid housing having an essentially-hollow reflective interior chamber. The interior chamber is bounded at one end by an air exhaust port, and by a removable HEPA filter element in fluid communication with an air intake port at an opposite, second end. The air purifier includes a germicidal ultraviolet light source mounted within the interior chamber, and a fan assembly draws air through the purifier. Baffling constructions prevent escape of ambient ultraviolet light, while ensuring free airflow through the purifier. Separate power switches control the fan assembly and ultraviolet light source. The purifier includes an interlock switch that disables the fan and ultraviolet light source when the purifier is opened. A status indicator provides visual feedback regarding the state of the ultraviolet light source. The purifier is lightweight and includes a grasping handle to facilitate movement of the purifier as needed.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: April 25, 2000
    Inventor: Bob C. Miller
  • Patent number: 5899655
    Abstract: An apparatus for loading a motorcycle or a secondary vehicle onto a carrier so that the carrier can be secured to a primary self-propelled vehicle for transporting. The carrier employs a docking unit which can be lowered to ground level allowing for ease of loading a motorcycle thereon. The docking unit may then be retracted by a pivoting conveyor assembly that guides the docking across roller supports to a raised position. The conveyor assembly rests upon a series of nested sleeves that allow the conveyor assembly to pivot to an inclined, loading/unloading orientation to the horizontal, transporting orientation. Elastomeric suspension elements dampen shock loads transferred to the device during travel. The device includes mounting shafts for securement either to a receiver hitch or a trailer. A system of interlocking pieces restricts relative motion of the device during travel. Tie downs and wheel chocks further assist in control of a vehicle during loading and transporting.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: May 4, 1999
    Inventors: Bob C. Miller, Jeffrey B. Miller
  • Patent number: 5839875
    Abstract: A carrier for motorcycles and the like secondary vehicles to be secured to a primary self-propelled vehicle. The carrier employs a docking unit which can be lowered to ground level allowing for ease of loading a motorcycle thereon. The docking unit may then be retracted by a pivoting conveyor assembly that guides the docking across roller supports to a raised position. The conveyor assembly rests upon a series of nested sleeves that allow the conveyor assembly to pivot to an inclined, loading/unloading orientation to the horizontal, transporting orientation. Elastomeric suspension elements dampen shock loads transferred to the device during travel. The device includes mounting shafts for securement either to a receiver hitch or a trailer. A system of interlocking pieces restricts relative motion of the device during travel. Tie downs and wheel chocks further assist in control of a vehicle during loading and transporting.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: November 24, 1998
    Inventors: Bob C. Miller, Jeffrey B. Miller
  • Patent number: RE29252
    Abstract: A flow sequencing valve which employs separate valve elements to generate the force for cycling and to accomplish discharge port sealing is disclosed.The valve may include an integral pilot solenoid for controlling cycling and is characterized by a force generating element, in the form of a variable resistance to flow, which is free to overtravel relative to the port sealing member whereby flow rate compensation is achieved and water hammer effects eliminated.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: June 7, 1977
    Inventor: Bob C. Miller