Preaction sprinkler valve assemblies, related dry sprinkler devices, and compressive activation mechanism
US10850144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Aug 26, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62C3/004
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A thermal trigger assembly for remote mechanical actuation of another fire protection system component includes an activation component with a distal base, a distal movable member, a proximal base, a proximal movable member, and a bias member biasing the proximal movable member from a preactivation position to an activated position located proximally of the preactivation position. A thermally responsive element is retained by the distal base, loses structural integrity under occurrence of a predetermined thermodynamic condition, and thereby allows the distal movable member to move from a preactivation position to an activated position with respect to the distal base. A flexible connector connects the proximal movable member to the distal movable member. Upon the loss of structural integrity by the thermally responsive element, a biasing force from the bias member causes a movement of the proximal movable member from the preactivation position to the activated position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.