Concealable window sprinkler

Patent metadata

Field	Value
Publication number	US-11938359-B2
Application number	US-202218072909-A
Country	US
Kind code	B2
Filing date	Dec 1, 2022
Priority date	May 1, 2019
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

A concealable sprinkler head includes a frame having a body mountable to a fire suppression liquid source, a pair of frame arms and a pair of corresponding drop pins slidably engaged with a respective frame arm. A thermal trigger is supported within the sprinkler frame. A fluid deflector is secured to the drop pins and includes a generally horizontal surface. The drop pins extend substantially orthogonally from the horizontal surface. An inclined surface of the fluid deflector extends angularly upwardly from the horizontal surface. A concealing cup surrounds the frame arms. A cover plate is attached to the concealing cup, covering the distal end thereof, wherein the drop pins and the deflector are positioned within the concealing cup. The cover plate is removable from the concealing cup permitting the drop pins and the deflector to axially slide out of the concealing cup into an operational position.

First claim

We claim:

1. A concealable sprinkler head comprising:
a sprinkler frame comprising:
a body mountable to a fire suppression liquid source, the body defining a proximal inlet, a distal outlet and an internal fire suppression liquid passageway extending therethrough;
a pair of frame arms extending away from the body; and
a pair of corresponding drop pins each being slidably engaged with a respective frame arm;

a sealing plug positioned in a sealing position to seal the internal fire suppression liquid passageway, maintaining the sprinkler head in a non-spraying state;
a thermal trigger supported within the sprinkler frame and operatively engaged with the sealing plug and configured to release the sealing plug from the sealing position upon activation of the thermal trigger,
a fluid deflector secured to the pair of drop pins;
a concealing cup having an upper wall attached to, and laterally outwardly projecting from, the body of the sprinkler frame, a skirting side wall extending away from the upper wall, and an open base end, the pair of frame arms being at least partially positioned within the concealing cup; and
a cover plate attached to the concealing cup, covering at least a portion of the open base end of the concealing cup and maintaining the pair of drop pins and the fluid deflector in a compressed, non-activated position,
wherein, in the compressed, non-activated position:
the fluid deflector includes an at least partially planar surface having a periphery, the pair of drop pins extending from the at least partially planar surface and defining an axis extending through the pair of drop pins, and an inclined surface extending angularly upwardly toward the sprinkler frame from a portion of the periphery of the at least partially planar surface located along one side of the axis, and

at least a portion of the cover plate being removable from the concealing cup at a predetermined temperature, permitting the pair of drop pins and the deflector to drop down relative to the compressed, non-activated position into an extended operational position wherein the inclined surface is configured to direct fire suppression liquid to an opposing side of the axis.

2. The concealable sprinkler head of claim 1 , wherein the portion of the periphery of the at least partially planar surface of the fluid deflector from which the inclined surface extends is linear.

3. The concealable sprinkler head of claim 1 , wherein the at least partially planar surface of the deflector defines a circular segment in shape.

4. The concealable sprinkler head of claim 1 , further comprising a laterally outwardly extending flange mounted to the concealing cup and positioned proximate the open base end thereof, wherein the cover plate is welded to the flange with a welding material, the welding material having a predetermined melting point such that when the cover plate is heated to or above the melting point, the cover plate separates from the concealing cup.

5. The concealable sprinkler head of claim 1 , wherein the at least partially planar surface of the fluid deflector and the inclined surface of the fluid deflector define an obtuse included angle therebetween.

6. The concealable sprinkler head of claim 1 , wherein the upper wall of the concealing cup includes at least one aperture.

7. The concealable sprinkler head of claim 1 , wherein the skirting side wall of the concealing cup includes an aperture.

8. The concealable sprinkler head of claim 1 , wherein each of the drop pins includes a proximal flange that rests upon a terminal end of the corresponding respective frame arm in the extended operational position.

9. The concealable sprinkler head of claim 1 , wherein the pair of frame arms are positioned within the concealing cup.

10. The concealable sprinkler head of claim 1 , wherein the cover plate comprises a flanged member and a cover member, the flanged member being attached to the concealing cup and the cover member being welded onto the flanged member via a welding material having a melting point, wherein the melting point is the predetermined temperature and the cover member being configured to detach from the flanged member upon exceeding the melting point of the welding material.

11. A concealable sprinkler head comprising:
a sprinkler frame comprising:
a body mountable to a fire suppression liquid source, the body defining a proximal inlet, a distal outlet and an internal fire suppression liquid passageway extending therethrough;
a pair of frame arms extending away from the body; and
a pair of corresponding drop pins each being slidably engaged with a respective frame arm;

a sealing plug positioned in a sealing position to seal the internal fire suppression liquid passageway, maintaining the sprinkler head in a non-spraying state;
a thermal trigger supported within the sprinkler frame and operatively engaged with the sealing plug and configured to release the sealing plug from the sealing position upon activation of the thermal trigger,
a fluid deflector secured to the pair of drop pins, the fluid deflector including an at least partially planar surface having a periphery, the pair of drop pins extending from the at least partially planar surface and defining an axis extending through the pair of drop pins, and an inclined surface extending angularly upwardly toward the sprinkler frame from a portion of the periphery of the at least partially planar surface located along one side of the axis defined by the pair of drop pins, the inclined surface being configured to direct fire suppression liquid to an opposing side of the axis defined by the pair of drop pins;
a concealing cup having an upper wall attached to, and laterally outwardly projecting from, the body of the sprinkler frame, a skirting side wall extending away from the upper wall, and an open base end, the pair of frame arms being at least partially positioned within the concealing cup; and
a cover plate attached to the concealing cup, covering at least a portion of the open base end of the concealing cup and maintaining the pair of drop pins and the fluid deflector in a compressed, non-activated position, at least a portion of the cover plate being removable from the concealing cup at a predetermined temperature, permitting the pair of drop pins and the deflector to drop down relative to the compressed, non-activated position into an extended operational position.

12. The concealable sprinkler head of claim 11 , wherein the at least partially planar surface of the fluid deflector includes a conical portion projecting toward the body.

13. The concealable sprinkler head of claim 12 , wherein the conical portion extends across the axis extending through the pair of drop pins.

14. The concealable sprinkler head of claim 11 , further comprising a laterally outwardly extending flange mounted to the concealing cup and positioned proximate the open base end thereof, wherein the cover plate is welded to the flange with a welding material, the welding material having a predetermined melting point such that when the cover plate is heated to or above the melting point, the cover plate separates from the concealing cup.

15. The concealable sprinkler head of claim 11 , wherein the pair of frame arms are positioned within the concealing cup.

16. The concealable sprinkler head of claim 11 , wherein the upper wall of the concealing cup includes at least one aperture.

17. The concealable sprinkler head of claim 11 , wherein each of the drop pins includes a proximal portion that rests upon a terminal end of the corresponding respective frame

Assignees

• Victaulic Co Of America

Inventors

• Meyer Stephen J
• Wancho Thomas
• Sandberg Thomas
• Desrosier John
• MAUGHAN Kevin Desmond

Classifications

• A62C37/09 Primary

  telescopic or adjustable · CPC title

• B05B1/265

  the liquid or other fluent material being symmetrically deflected about the axis of the nozzle · CPC title

• B05B1/267

  the liquid or other fluent material being deflected in determined directions · CPC title

• A62C37/11

  heat-sensitive · CPC title

• A62C37/14

  with frangible vessels · CPC title