Motorized valve actuating device
US6032924A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1999 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Jan 22, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/047
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve actuating device for opening and closing a valve is disclosed. The valve has a valve housing, a valve member sealingly engageable with a valve seat formed in the valve housing and a valve stem attached to the valve member for moving the valve member from an open position to a closed position, the valve member being biased to the open position. The valve actuating device includes a housing which is constructed to be attachable to the valve housing of the valve, a bidirectional motor mounted on the housing and a pinion gear which is coupled to the motor by a shaft, the pinion gear being drivable by the motor via the shaft. The device further includes a rack including a body having an end portion which is engageable with the valve stem of the valve and a side portion having a number of teeth thereon for meshing with teeth of the pinion gear, the rack being moveable, by the motor driving the pinion gear, between a first position in which the valve is in its open position and a second position in which the end portion of the rack engages the valve stem for maintaining the valve stem in its closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.