# US 5,341,527 A · Bathtub with integrally formed leveling base

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- Number: US 5,341,527 A
- Document ID: US5341527A
- Status: Granted
- Kind: A
- Application number: 08/057,245
- Filed: 1993-04-30
- Granted: 1994-08-30
- Earliest claimed: 1993-04-30
- Assignees: American Standard Inc.
- Inventors: A. Robert Schmidt; Drew J. Yuhas; Ronald D. Barndt
- Web page: https://patentgrep.com/patent/US5341527A

## CPC

- A47K 3/02: Baths (combined with showers A47K3/20)
- A47K: SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES

## Abstract

A molded article and the mold for making molded articles are disclosed. The molded article is a sanitary fixture, such as a whirlpool bathtub. The molded article comprises a rigid shell having a finish side and a non-finish side. A rigid material is coated on the rigid shell and integrally forms a leveling base on the bottom side of the rigid shell. Mounting pockets for attaching an apron and mounting areas for attaching a whirlpool motor may also be integrally formed in the rigid material coated on the rigid shell. The mold for manufacturing includes a plurality of cavities for forming leveling runners on the bottom side of the molded article. Additional cavities may be included in the mold for forming mounting areas and mounting pockets on the molded article.

## Claims

### Claim 1

A molded article comprising:
a rigid shell having a finish side and a non-finish side, said rigid shell comprised of a bottom wall, left and right side walls, and a pair of end walls;
said rigid shell further having an interior and an exterior, said interior and exterior defined by said bottom wall, said left and right side walls, and said end walls, and wherein said finish side corresponds to said interior and said non-finished side corresponds to said exterior;
a single-layer rigid coating on said non-finish side of said shell forming a hardened exterior, said rigid coating covering the entire non-finish side; and
a leveling base integrally formed in said hardened exterior on the bottom side of said rigid shell.

### Claim 2 (depends on 1)

The molded article of claim 1 wherein said rigid coating is formed from a hardenable polymeric material.

### Claim 3 (depends on 2)

The molded article of claim 2 wherein said rigid shell is constructed of metal, plastic, fiberglass or polymeric material.

### Claim 4 (depends on 3)

The molded article of claim 3 wherein said molded article is a sanitary fixture.

### Claim 5 (depends on 4)

The molded article of claim 4 wherein said sanitary fixture is a bathtub, whirlpool bathtub or shower floor.

### Claim 6 (depends on 1)

The molded article of claim 1 wherein said leveling base includes a series of longitudinally extending runners disposed from end to end on said bottom side of said rigid shell.

### Claim 7 (depends on 1)

The molded article of claim 1 further including mounting areas formed integrally in said hardened exterior on said rigid shell for attaching objects to said hardened exterior and having a thickness greater than the thickness of the surrounding area of said hardened exterior.

### Claim 8 (depends on 1)

The molded article of claim 1 further including mounting pockets formed integrally in said hardened exterior on said rigid shell.