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Freeze tolerant ball valve

  • US 9,334,966 B2
  • Filed: 06/11/2015
  • Issued: 05/10/2016
  • Est. Priority Date: 02/19/2013
  • Status: Active Grant
First Claim
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1. A ball valve that comprises:

  • a ball housing possessing an upper wall, a lower wall, and sidewalls extending between said upper and said lower walls;

    a spherical-shaped gate with an axial fluid passage extending there through disposed in said ball housing, said spherical-shaped gate adapted to be moved between an open position where said axial fluid passage is parallel to said sidewalls and a closed position where said axial fluid passage is orthogonal to said sidewalls; and

    a threaded cap adapted to seal an internally threaded aperture in one of said sidewalls, said threaded cap adapted to crack instead of said upper wall, said lower wall, and said sidewalls when water trapped in said ball housing turns to ice when said spherical-shaped gate is in said closed position.

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