IP Library Granted Patent US 12702883
Granted Patent B2
US 12702883 · App. 18/341,105 · Granted Aug 11, 2026

System actuator with spring release compression

Inventor: Thomas Kjellman (Uxbridge, MA)
Assignee: Kidde-Fenwal, LLC
A62C37/42A62C37/46A62C99/009A62C3/006
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Quick Facts
Patent No.
US 12702883
App. No.
18/341,105
Filed
Jun 26, 2023
Granted
Aug 11, 2026
Kind
B2
Art Unit
3752
USPC
169/47
Abstract

An actuation mechanism for use in a fire suppression system includes a housing and a plunger operably coupled to and movable relative to the housing. A tension member is operably coupled to the plunger and applies a tension to the plunger in a first direction. A force generating component is operably coupled to the plunger. A stopper is movably coupled to the housing and is operable in combination with the force generating component to apply a force on the plunger in a second direction.

Claims (12)

1 . An actuation mechanism for use in a fire suppression system comprising:

a housing having a first fastener opening;

a plunger operably coupled to the housing, the plunger being movable relative to the housing;

a tension member operably coupled to the plunger, wherein the tension member applies a tension to the plunger in a first direction;

a force generating component operably coupled to the plunger;

a fastener;

a stopper having a second fastener opening, the fastener threadedly disposed within the first fastener opening and the second fastener opening so as to couple the stopper to the housing and adjust a position of the stopper to the housing, the force generating component continuously applying a force on the plunger in a second direction, wherein the force of the force generating component is adjusted with respect to a displacement of the stopper to the housing and the stopper is configured to restrict movement of the force generating component relative to the housing in the first direction.

2 . The actuation mechanism of claim 1 , wherein the force applied by the force generating component opposes the tension applied to the plunger by the tension member.

3 . The actuation mechanism of claim 1 , wherein the stopper is coupled to the housing via at least one magnet.

4 . The actuation mechanism of claim 1 , wherein the force generating component is a coil spring.

5 . The actuation mechanism of claim 1 , wherein the force generating component is one of a pneumatic and hydraulic fluid.

6 . The actuation mechanism of claim 1 , wherein the plunger has a flange and wherein an interference between the flange and the housing is configured to restrict movement of the plunger relative to the housing in the first direction.