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Class Information
Number: 137/60
Name: Fluid handling > Freeze condition responsive safety systems > With freeze waste
Description: Apparatus which includes means to protect the liquid from freezing by responding to the freezing of the liquid in a chamber.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8307848 |
Freeze resistant manifold assembly and system |
Nov. 13, 2012 |
| 8109264 |
Hot water solar heating system and method |
Feb. 7, 2012 |
| 7654280 |
Anti-freezing hydrant |
Feb. 2, 2010 |
| 6883534 |
Freeze protection device for wall hydrants/faucets |
Apr. 26, 2005 |
| 6857442 |
Freeze protection device for wall hydrants/faucets |
Feb. 22, 2005 |
| 6830063 |
Freezeless protection device for wall hydrants/faucets |
Dec. 14, 2004 |
| 6805154 |
Freeze protection device for wall hydrants/faucets |
Oct. 19, 2004 |
| 6769446 |
Freeze protection device for wall hydrants/faucets |
Aug. 3, 2004 |
| 6532986 |
Freeze protection device for wall hydrants/faucets |
Mar. 18, 2003 |
| 6363960 |
Frost protection device |
Apr. 2, 2002 |
| 5797416 |
Faucet and water pipe freeze-protection device |
Aug. 25, 1998 |
| 5785073 |
Pipe burst protection pressure relief apparatus for sliding plate plumbing fixtures |
Jul. 28, 1998 |
| 5785072 |
Compressed stopper channel bypass pipe burst pressure relief apparatus for plumbing fixtures |
Jul. 28, 1998 |
| 5715855 |
Temperature-activated valve |
Feb. 10, 1998 |
| 5113891 |
Water freeze guard valve |
May. 19, 1992 |
| 5055185 |
Anti-freeze separator assembly |
Oct. 8, 1991 |
| 4967780 |
Anti-freezing device |
Nov. 6, 1990 |
| 4968456 |
Electrical air freshener for automobiles |
Nov. 6, 1990 |
| 4815491 |
Freeze protection device |
Mar. 28, 1989 |
| 4784173 |
Water freeze prevention valve |
Nov. 15, 1988 |
| 4437481 |
Self-actuating drip valve |
Mar. 20, 1984 |
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