Spreader

  • US 7,314,328 B2
  • Filed: 03/26/2004
  • Issued: 01/01/2008
  • Est. Priority Date: 07/28/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A nozzle for attachment to a dispenser for dispensing material, the nozzle comprising:

  • a) a fitting at a first end to facilitate attachment to the dispenser;

    b) an opening at a second end opposite the first end through which material is dispensed, a center of the opening being located along a central axis of the nozzle, the fitting being wider than the opening, the opening defining a periphery having a lateral width dimension and a height dimension, the opening further comprising arcuate and concave surfaces at widthwise opposite ends that remain of fixed dimension to define an oval periphery, the lateral width dimension substantially exceeding twice the height dimension of the opening, the opening having a linear edge profile along the lateral width dimension of the periphery when the opening is viewed from the side of the nozzle, the linear edge profile defined at a constant distance from the first end along a central axis of the nozzle; and

    c) a forwardly-projecting side wall tapering from the first end to the opening, the side wall having a peripheral outer surface defined by a concave surface that transitions into a convex surface that terminates at the opening;

    d) a cap for covering the nozzle during periods of non-use, a portion of the cap extending around the opening and a portion of the cap extending into the opening for plugging the opening;

    e) wherein the side wall further comprises an upper wall and a lower wall, each of the upper and lower walls comprising a portion of the peripheral outer surface such that each of the upper and lower walls comprises a concave surface that transitions into a convex surface terminating at the opening,f) whereby a substantially constant layer of material is dispensed through the opening and having a width of the opening.

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