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Class Information
Number: 137/61
Name: Fluid handling > Freeze condition responsive safety systems > Stop and waste
Description: Apparatus which closes the system to liquid flow and opens a waste outlet so that at least part of the liquid in the system is drained or wasted in response to the sensing of low temperature or freezing conditions.

Patents under this class:

Patent Number Title Of Patent Date Issued
8424550 Fluid drainage system and methods Apr. 23, 2013
8307848 Freeze resistant manifold assembly and system Nov. 13, 2012
6883534 Freeze protection device for wall hydrants/faucets Apr. 26, 2005
6857442 Freeze protection device for wall hydrants/faucets Feb. 22, 2005
6805154 Freeze protection device for wall hydrants/faucets Oct. 19, 2004
6763845 Water freeze prevention device Jul. 20, 2004
6532986 Freeze protection device for wall hydrants/faucets Mar. 18, 2003
5715855 Temperature-activated valve Feb. 10, 1998
5694963 Method and apparatus for freeze prevention of irrigation systems Dec. 9, 1997
5055185 Anti-freeze separator assembly Oct. 8, 1991
4360036 Thermostatic self-powered drain valve Nov. 23, 1982
4280478 Freeze protection apparatus for solar collectors Jul. 28, 1981

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