Self-regulating hydrant
US4511083A · kind A · utility
7Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | May 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1963
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a self-regulating hydrant which is characterized by a mechanism which automatically alters the flow of fluid through a valve seat in response to changes in ambient temperature. A temperature-responsive member, operatively coupled to a valve plug, is used to control the position of the plug relative to a valve seat. As the temperature of such member changes, its dimensions change. Such dimensional changes are preferably amplified and used to move the plug relative to the valve seat to control the rate of fluid flow through the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.