Temperature-responsive, locking mechanism for, and in combination with, a fluid valve
US5462226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Nov 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2574
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature-responsive, locking mechanism is provided for a valve which has a rotary operating assembly journaled in a housing. The mechanism comprises an annulus coupled to the assembly for rotation therewith. A fluid temperature-operated electric switch is external of and coupled to the housing. A solenoid is mounted in the housing. A source of electric power is connected to the switch and the solenoid. The switch ia coupled to the solenoid for effecting solenoid operation, and locking means, coupled to the solenoid, and in proximity to the solenoid is actuable in response to solenoid operation for engaging the annulus and preventing rotation of both the annulus and the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.