Electromagnetic release for valve
US10663070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An emergency shut-off valve assembly includes a valve having a closure assembly that includes a closure member coupled to an arm that rotates about a shaft. The valve assembly also includes an actuation assembly having a securement member coupled to the shaft; and an electromagnet adapted to generate a first magnetic force in a first state and a second magnetic force in a second state. In the first state, a contact surface of the securement member is in contact with and magnetically coupled to a contact surface of the electromagnet such that the closure member, the arm, and the shaft are maintained in the first open position against a rotational force provided by a biasing member. In the second state, the closure member, the arm, and the shaft are rotated into the second closed position by the rotational force provided by the biasing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.