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Entryway protective collar

  • US 10,214,345 B1
  • Filed: 11/23/2012
  • Issued: 02/26/2019
  • Est. Priority Date: 12/12/2011
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a first portion that has a diameter that is larger than that of a manhole and covers a surface that is adjacent to the manhole;

    a second portion that has a diameter that is smaller than that of the manhole and extends into the opening of the manhole;

    a third portion that connects the first portion and the second portion; and

    an opening that is formed by the first portion, the second portion, and the third portion;

    wherein in operation, the device is removably placed about a manhole with the first portion extending around the manhole, the third portion extending into the manhole, and the opening providing access to the manhole;

    wherein the first portion, the second portion, and the third portion form a continuous surface that lacks sharp edges and lacks discontinuities.

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