CPVC sprinkler assembly with support member

Patent metadata

Field	Value
Publication number	US-11612775-B2
Application number	US-202117161372-A
Country	US
Kind code	B2
Filing date	Jan 28, 2021
Priority date	Mar 13, 2013
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

A sprinkler assembly that includes a deflector assembly that translates with respect to the sprinkler frame upon actuation of the sprinkler from an unactuated state. The sprinkler frame includes a support member having an annular member spaced from the outlet to limit or control the axial translation of the deflector assembly relative to the outlet. Moreover, the annular member includes a region to support a closure assembly and thermally responsive trigger assembly under a fluid static load. A cover plate assembly includes a flexible annular wall to allow the cover plate assembly to be pushed on and held about the annular member of the sprinkler frame.

First claim

What is claimed is:

1. A sprinkler assembly comprising:
a body having an internal passageway extending from an inlet to an outlet to define a longitudinal axis;
a support member comprising a ring and a pair of stanchions disposed about the outlet, each of the stanchions defining a channel extending parallel to the longitudinal axis, each of the stanchions spacing the ring distally from the outlet with the ring circumscribing and orthogonal to the longitudinal axis, each of the stanchions having an opening between the channel and the ring; and
a deflector assembly engaged with the support member to translate from a first location a second location further from the outlet than the first location, the deflector assembly including a deflector member and a pair of elongate members integrally formed with and extending from the deflector member, each elongate member being disposed in one of the channels and including a projection member that is compressible relative to a corresponding elongate member of the pair of elongate members, each projection member engages the ring in the second location of the deflector assembly, each projection member disposed at a first angle to define a space between the projection member and the corresponding elongate member,
a proximal surface of the ring including a pair of engagement surfaces disposed about the longitudinal axis for engaging the projection members of the deflector assembly, each engagement surface extending proximally in one of the channels, each engagement surface disposed at a second angle and extending from a first surface end to a second surface end, the second surface end further from the longitudinal axis and the inlet than the first surface end to provide a wedge engagement between each projection member and corresponding engagement surface such that the corresponding engagement surface is received in the space defined by the projection member.

2. The sprinkler assembly of claim 1 , comprising:
the proximal surface and a distal surface of the ring form a pair of closed-form apertures, each aperture extending from the distal surface to the proximal surface and in communication with one of the channels.

3. The sprinkler assembly of claim 1 , comprising:
a thermally responsive trigger and a closure assembly at the outlet in an unactuated state of the sprinkler assembly.

4. The sprinkler assembly of claim 1 , comprising:
the projection member is axially spaced from the deflector member and extends laterally from the elongate member to define the first angle as an oblique included angle with respect to the elongate member.

5. The sprinkler assembly of claim 1 , comprising:
a bridge that supports a thermally responsive trigger and a closure assembly in the outlet in the unactuated state of the sprinkler assembly under a fluid static load ranging from 175 psi to 500 psi.

6. The sprinkler assembly of claim 1 , comprising
the body includes a pair of tool engagement surfaces disposed about the passageway and orthogonal to the stanchions.

7. The sprinkler assembly of claim 1 , comprising:
the body includes one of an external thread, an internal thread, or an external groove.

8. The sprinkler assembly of claim 1 , comprising:
the body and the support member are formed from a plastic material.

9. A sprinkler, comprising:
a sprinkler frame having an internal passageway extending along a longitudinal axis from an inlet to an outlet;
a seal assembly including a seal and a seal support at the outlet to prevent fluid from exiting the outlet;
a pair of stanchions disposed about the sprinkler frame defining a pair of spaced apart lateral channels, each stanchion including adjacent and orthogonally oriented surfaces to define one of the channels;
an annular member spaced distally from the outlet by the stanchions, the annular member having a proximal surface, a distal surface and a peripheral surface extending between the proximal and distal surfaces, the peripheral surface circumscribing the pair of lateral channels, the annular member including a pair of support surfaces disposed medially of the stanchions;
a thermally responsive trigger axially aligned along the longitudinal axis and supported by the support surfaces of the annular member to maintain the seal assembly at the outlet of the body; and
a deflector assembly comprising:
a deflector member disposed distally of the annular member for translation relative to the outlet of the body, the deflector assembly engaging the distal surface of the annular member to define a first location, the deflector assembly engaging the proximal surface of the annular member in an actuated state of the sprinkler; and

a pair of planar elongate members integrally formed with and extending from the deflector member, the pair of elongate members disposed in the pair of channels, each elongate member including a projection member compressible relative to each elongate member that engages the proximal surface, each projection member engages the annular member in the second location of the deflector assembly, each projection member disposed at a first angle to define a space between the projection member and the corresponding elongate member,
each support surface extending proximally in one of the channels, each support surface disposed at a second angle and extending from a first surface end to a second surface end, the second surface end further from the longitudinal axis and the inlet than the first surface end to provide a wedge engagement between each projection member and corresponding support surface such that the corresponding support surface is received in the space defined by the projection member.

10. The sprinkler of claim 9 , comprising:
the pair of elongate members extend through closed-form apertures which extend from the proximal surface to the distal surface of the annular member.

11. The sprinkler of claim 9 , comprising:
the annular member includes a plastic annular member formed integrally with the stanchions and a metallic ring disposed about the plastic annular member, the support surfaces supporting a bridge extending between the support surfaces with the thermally responsive trigger and the seal disposed axially along the longitudinal axis.

12. The sprinkler of claim 9 , comprising:
the proximal portion includes one of an external thread, an internal thread or an external groove.

13. The sprinkler of claim 9 , comprising:
a bridge supporting a closure assembly and the thermally responsive trigger under a static load ranging from 175 psi to 500 psi.

14. The sprinkler of claim 9 , comprising:
the pair of stanchions diametrically disposed about the outlet to space the annular member distally from the outlet.

15. The sprinkler of claim 9 , comprising:
the sprinkler frame and the annular member are formed from a plastic material, the assembly further including an annular metallic support member circumferentially surrounding and engaged with the distal surface of the annular member.

16. The sprinkler of claim 9 , comprising:
a pair of tool engagement surfaces disposed about the passageway and orthogonal to the stanchions.

17. The sprinkler assembly of claim 9 , comprising:
a cover plate coupled with the sprinkler frame.

Assignees

• Tyco Fire Products Lp

Inventors

• Ringer Yoram
• Pena Pedriant

Classifications

• A62C37/09 Primary

  telescopic or adjustable · CPC title

• A62C35/64 Primary

  pressurised · CPC title

• A62C35/68

  Details, e.g. of pipes or valve systems (valves in general F16K) · CPC title