Patent Application

App. No. 17/259,312

Abstract

Claims (42)

1 . A flammable liquid storage cabinet comprising:

a base portion;

two opposing sidewalls extending substantially perpendicularly upward from the base portion;

a rear wall extending substantially perpendicularly upward from the base portion between respective ends of the sidewalls;

a top portion disposed opposite the base portion to cover a top of the sidewalls and the rear wall and define a receiving space in the storage cabinet for receiving a flammable liquid container; and

a door assembly disposed opposite the rear wall,

wherein each of the sidewalls, the rear wall, and the door assembly comprises a double walled structure having a loose granular insulating material poured therein,

wherein the rear wall and the sidewalls are defined by an inner sheet and an outer sheet defining a void space therebetween, and

wherein the insulating material is disposed in the void space by pouring through a fill opening defined in the top portion in alignment with the void space.

2 . The storage cabinet of claim 1 , wherein the insulating material comprises perlite.

3 . The storage cabinet of claim 2 , wherein the perlite has a maximum particle dimension of about 0.5 inches.

4 . The storage cabinet of claim 2 , wherein the perlite has a bulk density in a range of about 5 to 8 lbs/ft 3 and an effective density of about 2.5 to 3.3 lbs/gal.

5 . The storage cabinet of claim 2 , wherein the insulating material is configured to limit the internal temperature of the storage cabinet to under 325 degrees when tested with a standard for safety of flammable liquid storage cabinets defined in UL 1275.

6 . (canceled)

7 . The storage cabinet of claim 1 , wherein the void space is at least 1.5 inches thick.

8 . The storage cabinet of claim 1 , wherein responsive to filling of the void space with the insulating material, a snap plug is disposed in the fill opening.

9 . A flammable liquid storage cabinet comprising:

a base portion;

two opposing sidewalls extending substantially perpendicularly upward from the base portion;

a rear wall extending substantially perpendicularly upward from the base portion between respective ends of the sidewalls;

a top portion disposed opposite the base portion to cover a top of the sidewalls and the rear wall and define a receiving space in the storage cabinet for receiving a flammable liquid container; and

a door assembly disposed opposite the rear wall,

wherein each of the sidewalls, the rear wall, and the door assembly comprises a double walled structure having a loose granular insulating material poured therein,

wherein the door assembly comprises at least one door that is defined by an inner sheet and an outer sheet defining a void space therebetween, and

wherein the insulating material is disposed in the void space by pouring through a fill opening defined in a top of the door.

10 . The storage cabinet of claim 9 , wherein the void space is at least 1.5 inches thick.

11 . The storage cabinet of claim 9 , wherein responsive to filling of the void space with the insulating material, a snap plug is disposed in the fill opening.

12 . The storage cabinet of claim 1 , wherein the base portion further comprises a sump pan.

13 . The storage cabinet of claim 12 , wherein the sump pan is a single piece tub configured to hold up to 5 gallons of fluid without a depth of the fluid exceeding 2 inches.

14 . The storage cabinet of claim 12 , wherein the sump pan is removable from the storage cabinet.

15 . The storage cabinet of claim 12 , wherein the sump pan is integrated into the base portion of the storage cabinet.

16 . The storage cabinet of claim 1 , wherein the sidewalls and the rear wall are each formed by a common inner sheet and a common outer sheet defining a single continuous void space therebetween.

17 . A method of manufacturing a flammable liquid storage cabinet, the method comprising:

forming two opposing sidewalls extending spaced apart from each other in substantially parallel planes and a rear wall extending substantially between respective ends of the sidewalls such that each of the sidewalls and the rear wall are double walls defining an enclosable void space;

forming a door assembly as a double walled door defining a second enclosable void space;

pouring a loose granular insulating material into the enclosable void space of the sidewalls and the rear wall;

pouring the insulating material into the second enclosable void space of the door assembly; and

installing a plug into a fill opening through which the insulating material is poured,

wherein pouring the insulating material comprises pouring perlite.

18 . (canceled)

19 . The method of claim 17 , wherein the perlite has a maximum particle dimension of about 0.5 inches, a bulk density in a range of about 5 to 8 lbs/ft 3 and an effective density of about 2.5 to 3.3 lbs/gal.

20 . (canceled)

Assignments (9)