# US 12,000,613 B2 · Plug for use in a process of forming an insulated register box

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,000,613 B2
- Document ID: US12000613B2
- Status: Granted
- Kind: B2
- Application number: 17/175,922
- Filed: 2021-02-15
- Published: 2021-06-24
- Granted: 2024-06-04
- Earliest claimed: 2015-03-25
- Applicants: Sterling Custom Sheet Metal, Inc.
- Inventors: Sterling Kidd Combs
- Web page: https://patentgrep.com/patent/US12000613B2

## CPC

- F24F 13/082: {Grilles, registers or guards}
- B29C 41/20: incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
- B29C 44/18: Filling preformed cavities {(B29C44/1204 takes precedence)}
- F24F 13/06: Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- B29C 44/36: Feeding the material to be shaped {(B29C44/0492 takes precedence)}
- B29C 44/367: {using spray nozzles}
- B29K 2075/00: Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material
- B29K 2105/0058: {Liquid or visquous}
- B29K 2995/0015: Insulating
- F24F 2013/242: {Sound-absorbing material}
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

A plug for use in a process of forming an insulated register box has a body with at least one side wall, a bottom wall and a top edge. The insulated register box has a box and a duct extending outwardly therefrom. The duct has a portion extending into an interior of the box. The body has a ledge extending outwardly of the top edge thereof. The bottom wall is adapted to abut an end of the portion of the duct. The ledge is adapted to abut an end of the box opposite the duct. A gasket is affixed to the bottom wall of the body. This gasket is adapted to abut the end of the portion of the gasket. The gasket is of a polymeric or elastomeric material.

## Claims

### Claim 1

An assembly for forming an insulated register box, the assembly comprising:
a register box having a box and a duct extending outwardly therefrom, the duct having a portion extending into an interior of the box;
a support having an opening therein, said support receiving the duct of the register box therein;
a plug having a body with at least one side wall and a bottom wall and a top edge, the body having a ledge extending outwardly of the top edge thereof, the bottom wall abutting an end of the portion of the duct, the ledge abutting an end of the box opposite the duct;
a plastic sheet underlying the bottom wall and over an exterior of the at least one side wall and under the ledge; and
an expandable polymeric material received in an interior of the box of the insulated register box.

### Claim 2 (depends on 1)

The assembly of claim 1, further comprising:
a gasket affixed to the bottom wall of the body, said gasket abutting the end of the portion of the duct, said plastic sheet interposed between the end of the portion of the duct and said gasket.

### Claim 3 (depends on 1)

The assembly of claim 1, the at least one side wall of the body comprising four side walls arranged in a generally rectangular configuration.

### Claim 4 (depends on 3)

The assembly of claim 3, the four side walls being tapered so as to narrow toward the bottom wall of the body.

### Claim 5 (depends on 4)

The assembly of claim 4, the ledge extending outwardly of each of the four side walls.

### Claim 6 (depends on 1)

The assembly of claim 1, said body having a hollow interior and four rigid side walls arranged in a generally rectangular configuration.

### Claim 7 (depends on 6)

The assembly of claim 6, further comprising:
a handle affixed to said body, said handle adapted to allow the body to be manually lowered or lifted.

### Claim 8 (depends on 1)

The assembly of claim 1, said support having a flat top surface, the flat top surface of said support adapted to allow a bottom of the box of said insulated register box to rest thereagainst.

### Claim 9 (depends on 1)

The assembly of claim 1, said expandable polymeric material adapted to expand and bear against the at least one side wall of said body and bear against the bottom wall of said body and against the portion of the duct and against an inner wall of the insulated register box.