Freeze safety box organization

Details Freeze safety box organization Freeze safety box organization

1992-06-29

1993-07-13

Rivell, John

Fluid handling

With indicator, register, recorder, alarm or inspection means

Inspection means

137 681, 137 59, 138 32, E03B 710

Patent

active

052264483

ABSTRACT:
A plumbing box mounted in fluid communication with fluid pipes within wall structure is arranged to provide for threaded bores for securement of the pipes thereto, with a front wall of the box or housing structure having a plug member frictionally retained within a front wall smooth bore. Upon freezing of fluid within the box structure, the plug member is displaced relative to the box indicating pipe freezing, with the plug member arranged with its cap portion coplanar with a wall surface for visual indication of a freezing condition within the pipe structure directed into the box.

REFERENCES:
patent: 213292 (1879-03-01), Lunkenheimer
patent: 931112 (1909-08-01), Ballard
patent: 1687027 (1928-08-01), Calhoun
patent: 3319657 (1967-05-01), Nyiri
patent: 3926051 (1975-12-01), Katzman

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