IP Library Granted Patent US 12,573,824
Granted Patent B2
US 12,573,824 · App. 17/967,317 · Granted Mar 10, 2026

Electrical distribution box

Inventors: Natalie Kolling (Faribault, MN); Meghan Flaherty (Mankato, MN)
Assignee: TRYSTAR, LLC
H02G3/081H02G3/088
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,573,824
App. No.
17/967,317
Granted
Mar 10, 2026
Kind
B2
Abstract

Example electrical boxes include a lid, a base, and side walls. The lid includes a lid structure comprising a lid upper surface structure and a lid lower surface structure. The base includes a base structure comprising a base upper surface structure and a base lower surface structure. The side walls extend between the lid and the base, forming an interior configured to house electrical components. The lid upper surface structure can mate with a lower surface structure of a higher electrical box in a stack. The base lower surface structure can mate with an upper surface structure of a lower electrical box in a stack. The lid upper surface structure can be identical to the base upper surface structure of a lower electrical box. The lid lower surface structure can be identical to the base lower surface structure of a higher electrical box.

Claims (43)

1 . An electrical box comprising:

(a) a lid that includes lid structure comprising a lid upper surface structure and a lid lower surface structure, the lid upper surface structure comprising a plurality of raised features and a plurality of recessed features;

(b) a base that includes a base structure comprising a base upper surface structure and a base lower surface structure; and

(c) side walls extending between the lid and the base to form an interior configured to house one or more electrical components,

wherein the lid upper surface structure is configured to mate with complementary features of a lower surface structure of a higher electrical box in a stack, and the base lower surface structure is configured to mate with an upper surface structure of a lower electrical box in the stack, and

wherein the lid upper surface structure is identical to the base upper surface structure and to the upper surface structure of the lower electrical box in the stack, and the lid lower surface structure is identical to the base lower surface structure and to the lower surface structure of the higher electrical box in the stack.

2 . The electrical box of claim 1 , wherein the lid structure is identical to the base structure.

3 . The electrical box of claim 1 , wherein the plurality of raised features and the plurality of recessed features of the lid upper surface structure comprise horizontally symmetrical raised features and recessed features.

4 . The electrical box of claim 1 , wherein the lid upper surface structure includes a handle.

5 . The electrical box of claim 4 , wherein the lid upper surface structure includes a handle depression, the handle being movable between a storage position in which the handle is nestled in the handle depression and an operational position in which the handle is withdrawn from the handle depression for use.

6 . The electrical box of claim 1 , wherein the side walls form a side wall perimeter, the lid has a perimeter that extends horizontally beyond the side wall perimeter, and the lid is configured to direct liquid beyond the side wall perimeter.

7 . The electrical box of claim 6 , wherein the lid comprises a rubber material, and the side walls comprise sheet metal having one or more cutouts formed therein for cooling purposes, the lid serving as a bumper for the side walls, the bumper being configured to minimize movement or impact damage to the electrical box.

8 . The electrical box of claim 1 , wherein the lid upper surface structure includes one or more sloped surfaces to direct any liquid away from a middle of the lid upper surface structure toward one or more edges of the lid upper surface structure to prevent liquid from entering the interior.

9 . The electrical box of claim 8 , wherein the side walls form a side wall perimeter, the side walls having one or more cutouts formed therein for cooling purposes, and the lid has a perimeter that extends horizontally beyond the side wall perimeter, and wherein the lid upper surface structure includes one or more holes to drain liquid outside the side wall perimeter.

10 . A method comprising:

stacking a second electrical box on top of a first electrical box,

the first electrical box including a first lid that includes a first lid structure comprising a first lid upper surface structure and a first lid lower surface structure, a first base that includes a first base structure comprising a first base upper surface structure and a first base lower surface structure, and first side walls extending between the first lid and the first base to form a first interior that houses a first set of electrical components, and

the second electrical box including a second lid that includes a second lid structure comprising a second lid upper surface structure and a second lid lower surface structure, a second base that includes a second base structure comprising a second base upper surface structure and a second base lower surface structure, and second side walls extending between the second lid and the second base to form a second interior that houses a second set of electrical components,

wherein the first lid upper surface structure comprises a plurality of raised features and a plurality of recessed features that mate with complementary features of the second base lower surface structure,

wherein the first base upper surface structure, the first lid upper surface structure, the second base upper surface structure, and the second lid upper surface structure are identical to one another, and

wherein the first base lower surface structure, the first lid lower surface structure, the second base lower surface structure, and the second lid lower surface structure are identical to one another.

11 . The method of claim 10 , wherein the first lid structure, the first base structure, the second lid structure, and the second base structure are identical to one another.

12 . The method of claim 10 , wherein stacking the second electrical box on top of the first electrical box comprises lifting the second electrical box with a second collapsible handle and placing the second electrical box on top of the first electrical box to mate the second base lower surface structure with the first lid upper surface structure.

13 . The method of claim 10 , further comprising stacking a third electrical box on top of the second electrical box, the third electrical box including a third lid that includes a third lid structure comprising a third lid upper surface structure and a third lid lower surface structure, a third base that includes a third base structure comprising a third base upper surface structure and a third base lower surface structure, and third side walls extending between the third lid and the third base to form a third interior that houses a third set of electrical components,

wherein the second lid upper surface structure comprises a second plurality of raised features and a second plurality of recessed features that mate with complementary features of the third base lower surface structure,

wherein the second lid upper surface structure, the third base upper surface structure, and the third lid upper surface structure are identical to one another, and

wherein the second lid lower surface structure, the third base lower surface structure, and the third lid lower surface structure are identical to one another.

14 . The method of claim 10 , wherein the first set of electrical components is identical to the second set of electrical components.

15 . The method of claim 10 , wherein:

the first side walls comprise sheet metal and form a first side wall perimeter,

the first lid comprises a rubber material and has a first lid perimeter that extends horizontally beyond the first side wall perimeter,

the second side walls comprise sheet metal and form a second side wall perimeter,

the second lid comprises the rubber material and has a second lid perimeter that extends horizontally beyond the second side wall perimeter,

the first lid serves as a first bumper for the first side walls, and

the second lid serves as a second bumper for the second side walls.

16 . The method of claim 10 , wherein the second lid upper surface structure includes one or more sloped surfaces to direct any liquid away from a middle of the second lid upper surface structure toward one or more edges of the second lid upper surface structure to prevent liquid from entering the second interior.

17 . The method of claim 16 , wherein the second side walls form a second side wall perimeter, and the second lid has a perimeter that extends horizontally beyond the second side wall perimeter, and wherein the second lid upper surface structure includes one or more holes to drain liquid outside the second side wall perimeter.

18 . An electrical box group comprising:

a bulk container that includes a platform; and

six stacks of electrical boxes positioned in two rows of three on the platform, each electrical box in each of the six stacks of electrical boxes including (a) a lid that includes lid structure comprising a lid upper surface structure and a lid lower surface structure, (b) a base that includes a base structure comprising a base upper surface structure that is identical to the lid upper surface structure and a base lower surface structure that is identical to the lid lower surface structure, and (c) side walls extending between the lid and the base to form an interior that houses one or more electrical components,

wherein, in each of the six stacks of electrical boxes, an upper electrical box being stacked on top of a lower electrical box comprises a plurality of raised features and a plurality of recessed features of the base lower surface structure of the upper electrical box mating with complementary features of the lid upper surface structure of the lower electrical box.

19 . The electrical box group of claim 18 , wherein each of the six stacks of electrical boxes comprises four electrical boxes.

20 . The electrical box group of claim 18 , wherein the platform is approximately 43-49 inches long and approximately 40-46 inches wide centimeters wide.

Assignments (3)
SECURITY INTEREST Recorded Aug 6, 2024
From: TRYSTAR, LLC
To: BSP AGENCY, LLC, AS COLLATERAL AGENT
Reel/Frame 068198/0689 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2023
From: KOLLING, NATALIE
To: TRYSTAR, LLC
Reel/Frame 064935/0018 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2023
From: FLAHERTY, MEGHAN
To: TRYSTAR, LLC
Reel/Frame 064935/0346 →
Continuity (1)
Related Publication 20240128728A1 · Apr 18, 2024
References Cited (47)
US 936451A · Havenhill · 1909 [cited by applicant]
US 2956705A · Clingman · 1960 [cited by applicant]
US 3380768A · Wolfensberger · 1968 [cited by applicant]
US 3751127A · Pospisil et al. · 1973 [cited by applicant]
US 3901571A · Begitschke et al. · 1975 [cited by applicant]
US 3955702A · Lundy · 1976 [cited by applicant]
US 4115655A · Prentice · 1978 [cited by applicant]
US 4123129A · Butler · 1978 [cited by applicant]
US 4126364A · Reilly · 1978 [cited by applicant]
US 4322572A · Snyder · 1982 [cited by applicant]
US 4637324A · Janson · 1987 [cited by applicant]
US 4768845A · Yeh · 1988 [cited by applicant]
US 4846078A · Janson · 1989 [cited by applicant]
US 4869380A · Metcalfe et al. · 1989 [cited by applicant]
US 4884715A · Pohlmann · 1989 [cited by applicant]
US 4997240A · Schmalzl et al. · 1991 [cited by applicant]
US 5070429A · Skirpan · 1991 [cited by applicant]
US D323809S · Ross, Jr. · 1992 [cited by applicant]
US 5202538A · Skirpan · 1993 [cited by applicant]
US D340040S · Gifford et al. · 1993 [cited by applicant]
US 5470139A · Hsiao · 1995 [cited by applicant]
US 5544003A · Vaughan · 1996 [cited by applicant]
US 6062664A · Benner · 2000 [cited by applicant]
US 6768054B2 · Sato · 2004 [cited by examiner]
US D498211S · Thibault · 2004 [cited by applicant]
US 6832580B2 · Marchioro · 2004 [cited by applicant]
US D503377S · Krieger et al. · 2005 [cited by applicant]
US D542284S · Kim · 2007 [cited by applicant]
US 7528322B1 · Gretz · 2009 [cited by examiner]
US 7848085B2 · Gerber · 2010 [cited by applicant]
US 7922417B2 · Jimenez · 2011 [cited by applicant]
US 8053671B1 · Shotey · 2011 [cited by examiner]
US 8395883B2 · Takata et al. · 2013 [cited by applicant]
US 8403431B2 · Elkins et al. · 2013 [cited by applicant]
US D682218S · Takata et al. · 2013 [cited by applicant]
US D689024S · Takata et al. · 2013 [cited by applicant]
US 8616661B2 · Takata et al. · 2013 [cited by applicant]
US 20020070043A1 · Kitajima · 2002 [cited by examiner]
US 20070210087A1 · McCormick · 2007 [cited by examiner]
US 20080290771A1 · Jimenez · 2008 [cited by applicant]
US 20100270299A1 · Baltussen et al. · 2010 [cited by applicant]
US 20110163648A1 · Jimenez · 2011 [cited by applicant]
US 20170129096A1 · Chen · 2017 [cited by examiner]
DE 7922747U1 · 1979 [cited by applicant]
DE 102008061908B3 · 2010 [cited by applicant]
EP 0024502A1 · 1981 [cited by examiner]
International Searching Authority, “International Search Report and Written Opinion”, for Application No. PCT/US2023/076937, mailed Feb. 13, 2024, pp. 1-17. [cited by applicant]