Patents Assigned to Nuhn Industries Limited
  • Patent number: 9488190
    Abstract: A pump for immersion in a fluid reservoir has an extensible body and a fluid conduit. The length of the pump may be varied in order to accommodate a variety of reservoir fluid heights. The pump may be pivotable relative to at least a portion of a frame in order that the entrance angle may be adjusted. The pump has a bottom housing with a bottom inlet and at least two, preferably at least three, tangential fluid outlets that are upwardly angled towards the conduit. The outlets may be merged with the fluid conduit. An impeller within the housing is shaped to transfer fluid tangentially and upwardly within the housing to co-operate with the upward angle of the outlets. These features reduce fluid pressure loss and thereby increase fluid flow rate through the pump for a given input power.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: November 8, 2016
    Assignee: Nuhn Industries Limited
    Inventor: Ian Nuhn
  • Patent number: 8336163
    Abstract: The apparatus comprises a front-mounted collection means for a vacuum tank for the collection of liquid or semi-liquid materials. The collection means comprises a substantially V-shaped housing with a scraper at the bottom thereof, a height adjustable suction inlet at the apex thereof, and a pair of laterally adjustable pivoting wings for varying its width to correspond to that of an alley or gutter. A plurality of rotary feeders, each having a vertical axis of rotation, are mounted to the housing adjacent the scraper to prevent accumulation of the materials on the scraper. The feeders do not contact either the surface upon which the scraper is operated, nor the scraper itself, but serve to mix thick consistency materials with thinner consistency materials and also to dislodge any accumulation that does occur.
    Type: Grant
    Filed: July 19, 2009
    Date of Patent: December 25, 2012
    Assignee: Nuhn Industries Limited
    Inventor: Dennis Nuhn
  • Patent number: 7159889
    Abstract: A liquid manure spreader is described which comprises a frame having a plurality of frame portions and having articulation means between each frame portion for permitting relative movement of each frame portion in response to directional changes of the liquid manure spreader. Such an arrangement facilitates turning of the liquid manure spreader. The liquid manure spreader also comprises two or more liquid manure tanks which are in fluid communication with each other. A pump may be used to re-circulate the liquid manure between the tanks, transfer the liquid manure to a spreader means, or both. Liquid manure can also be transferred between the tanks to thereby achieve a pre-determined weight distribution between the tanks. Such a fluid arrangement permits better weight distribution leading to better handling of the manure spreader.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: January 9, 2007
    Assignee: Nuhn Industries Limited
    Inventors: Dennis Nuhn, Ian Nuhn