Apparatus for freezing water in a pipe at a given location
US5571233A · kind A · utility
Inventors
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/218
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for freezing water in a pipe at a given location including a tank having an amount of pressurized gas disposed therein at a temperature below the freezing point of water; a valve coupled to the tank and openable for allowing the gas to be expelled; a flexible discharge hose having a proximal end coupled to the valve and a distal end extended therefrom; and a flow nozzle coupled to the distal end the discharge hose, each flow nozzle having a fabric sleeve, an elastomeric pad with a hollow interior slidably inserted within the sleeve, a plurality of through holes formed on one side of the pad, a tubular coupler having an inboard end secured to the pad and in communication with the interior and an outboard end removably coupled to the distal end of the hose, and a coupling mechanism secured to the sleeve for removably coupling the sleeve to the pipe, whereby when the flow nozzle is wrapped around the pipe and the valve is opened, gas flows through the discharge hose and out the flow nozzle for cooling the pipe and freezing water therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.