Patents by Inventor Nicholas B. Nigrelli

Nicholas B. Nigrelli 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: 5011372
    Abstract: A high volume aeration device comprises a motor and propeller tube suspended in a pond by a float. A propeller on the motor shaft and inside the propeller tube creates a generally hollow water output stream that rises out of the propeller tube. A diffuser plate is longitudinally slidable inside the hollow water output stream. The water output stream strikes the diffuser plate and locates it at an equilibrium location whereat the force of the water output stream on the diffuser plate periphery equals the weight of the diffuser plate. If the propeller cavitates, the reduced water output stream causes the diffuser plate to fall toward the propeller and redirect the water output stream to the propeller. The redirected water output stream reloads the propeller and enables the aeration device to resume full output without outside intervention after the cause of the cavitation has been eliminated.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: April 30, 1991
    Assignee: Nigrelli Systems, Inc.
    Inventors: Nicholas B. Nigrelli, David Wasmer
  • Patent number: 4981622
    Abstract: A high volume aeration device comprises a motor and propeller tube suspended in a pond by a float. A propeller on the motor shaft and inside the propeller tube creates a generally hollow water output stream that rises out of the propeller tube. A diffuser plate is longitudinally slidable inside the hollow water output stream. The water output stream strikes the diffuser plate and locates it at an equilibrium location whereat the force of the water output stream on the diffuser plate periphery equals the weight of the diffuser plate. If the propeller cavitates, the reduced water output stream causes the diffuser plate to fall toward the propeller and redirect the water output stream to the propeller. The redirected water output stream reloads the propeller and enables the aeration device to resume full output without outside intervention after the cause of the cavitation has been eliminated.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: January 1, 1991
    Assignee: Nigrelli Systems, Inc.
    Inventors: Nicholas B. Nigrelli, David Wasmer
  • Patent number: 4805372
    Abstract: A bottle packaging apparatus including a dual line bottle conveyor, a cover conveyor for feeding contoured covers to the bottles on the conveyor, a magazine positioned above the cover conveyor and including a pair of guide tubes for supporting a stack of contoured covers, each cover including flexible means for separating one cover from another, and a tab or ring mounted on the bottom of the guide tube for bending the flexible means into engagement with the next cover to physically separate the cover from the stack when the cover is pulled off of the guide tubes.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: February 21, 1989
    Assignee: Nigrelli Systems, Inc.
    Inventor: Nicholas B. Nigrelli
  • Patent number: 4787632
    Abstract: A golf accessory for retrieving golf balls, repairing divots and placing ball markers, the accessory including a planar member having a ball holder section formed on one side and a flexible ball guide section on the opposite side for biasing the ball into the holder, the guide section including a pair of tapered tines for repairing divots and placing golf ball markers on the green.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: November 29, 1988
    Inventors: Nicholas B. Nigrelli, James Grau
  • Patent number: 4531345
    Abstract: A case loader for loading pet beverage or other product bottles with a prominent neck flange in cases includes support rails spaced by gaps which support the bottles by the neck flange in suspended condition as they are moved by pusher bars from a grouping station to a case filling station.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: July 30, 1985
    Inventors: Nicholas B. Nigrelli, Terry J. Nigrelli