# US 10,483,741 B2 · Seal for electrical box

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- Number: US 10,483,741 B2
- Document ID: US10483741B2
- Status: Granted
- Kind: B2
- Application number: 16/163,732
- Filed: 2018-10-18
- Published: 2019-02-14
- Granted: 2019-11-19
- Earliest claimed: 2016-10-28
- Assignees: Allied Moulder Products, Inc.
- Applicants: Allied Moulded Products, Inc.
- Inventors: Gregg E. Laukhuf
- Web page: https://patentgrep.com/patent/US10483741B2

## CPC

- H02G 3/126: {with supporting means for mounting on a single wall stud}
- H02G 3/123: {in thin walls}
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES

## Abstract

An electrical box includes a front surface having an opening providing access to a hollow interior of the electrical box, at least one sidewall extending rearwardly from the front surface to form the hollow interior, and a seal disposed on an exterior surface of the at least one sidewall. The seal has a triangular cross-sectional shape including a thin end configured to first enter an opening of a building structure receiving the electrical box therein. A tapered surface of the seal is compressed as the electrical box is received into the opening in the building structure to provide a seal around an exterior surface of the at least one sidewall of the electrical box.

## Claims

### Claim 1

An electrical box configured to be received in an opening, the electrical box comprising:
a front surface having an opening formed therein providing access to a hollow interior of the electrical box;
a sidewall extending rearwardly from the front surface to form the hollow interior; and
a tapered compressible seal compressed between an exterior surface of the sidewall and a surface forming the opening when the electrical box is received in the opening to form a vapor seal about a periphery of the exterior surface of the sidewall of the electrical box, wherein the seal abuts a rear surface of a retention flange of the electrical box.

### Claim 2 (depends on 1)

The electrical box of claim 1, wherein the seal has a substantially triangular cross-sectional shape including a thin end and an oppositely arranged thick end, the thick end having a thickness thicker than a thickness of the thin end.

### Claim 3 (depends on 2)

The electrical box of claim 2, wherein the thin end of the triangular cross-sectional shape is spaced from the thick end towards an inner wall of the electrical box formed opposite the front surface.

### Claim 4 (depends on 2)

The electrical box of claim 2, wherein the thick end of the triangular cross-sectional shape is disposed adjacent the front surface of the electrical box.

### Claim 5 (depends on 4)

The electrical box of claim 4, wherein the thick end is arranged co-planar with the front surface of the electrical box.

### Claim 6 (depends on 4)

The electrical box of claim 4, wherein the thick end is spaced from the front surface of the electrical box.

### Claim 7 (depends on 4)

The electrical box of claim 4, wherein the thick end contacts an edge formed between the sidewall and the front surface of the electrical box.

### Claim 8 (depends on 1)

The electrical box of claim 1, wherein the seal is formed from a polymeric material.

### Claim 9 (depends on 1)

The electrical box of claim 1, wherein the seal is formed from a closed cell foam.

### Claim 10 (depends on 1)

The electrical box of claim 1, wherein the seal is adhered to the exterior surface of the sidewall.

### Claim 11 (depends on 1)

The electrical box of claim 1, wherein the seal is molded to the exterior surface of the sidewall.

### Claim 12 (depends on 1)

The electrical box of claim 1, wherein the sidewall includes a plurality of sidewalls, and wherein each of the plurality of the sidewalls has the seal disposed thereon.

### Claim 13 (depends on 12)

The electrical box of claim 12, wherein each of the plurality of the sidewalls and the seal surrounds the hollow interior of the electrical box.

### Claim 14 (depends on 13)

The electrical box of claim 13, wherein each of the plurality of the sidewalls and the seal has a substantially rectangular perimeter shape.

### Claim 15 (depends on 13)

The electrical box of claim 13, wherein each of the plurality of the sidewalls and the seal has a substantially circular perimeter shape.

### Claim 16 (depends on 13)

The electrical box of claim 13, wherein each of the plurality of the sidewalls and the seal has a substantially octagonal perimeter shape.

### Claim 17 (depends on 1)

The electrical box of claim 1, wherein the seal includes a first portion having a rectangular cross-sectional shape and a second portion having a triangular cross-sectional shape.

### Claim 18 (depends on 17)

The electrical box of claim 17, wherein the first portion is disposed closer to the front surface of the electrical box than the second portion.

### Claim 19 (depends on 17)

The electrical box of claim 17, wherein the second portion includes a thin end spaced from the front surface.

### Claim 20 (depends on 1)

The electrical box of claim 1, wherein the seal is disposed on an exterior surface of the sidewall.