# US 2008/0188108 A1 · Lamp Base and Electric Lamp

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- Number: US 2008/0188108 A1
- Document ID: US20080188108A1
- Status: Published application
- Kind: A1
- Application number: 11/884,434
- Filed: 2006-02-06
- Published: 2008-08-07
- Earliest claimed: 2005-02-15
- Inventors: Gerhard Behr; Peter Helbig
- Web page: https://patentgrep.com/patent/US20080188108A1

## CPC

- H01R 43/005: {for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing}
- H01R 13/521: {Sealing between contact members and housing, e.g. sealing insert}
- H01R 33/965: Dustproof, splashproof, drip-proof, waterproof, or flameproof holders
- H01R 43/16: for manufacturing contact members, e.g. by punching and by bending
- H01R 43/24: Assembling by moulding on contact members
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A lamp base comprising at least one lead-in wire (16). The lamp base is sealed in the area of the at least one lead-in wire (16) with at least one of the following features A, B and C. Feature A comprises an elastomer (161) or rubber that positively and annularly surrounds a section of the at least one lead-in wire (16), said section of the at least one lead-in wire (16), which is surrounded by the elastomer (161) or rubber, being positively embedded in an injection-molded plastic part (15) of the lamp base. Feature B comprises a surface area of at least one lead-in wire, which has a profile or a rough surface and is positively embedded in an injection-molded plastic part of the lamp base. Feature C comprises a section of the at least one lead-in wire, which is fitted with slots and is positively embedded in an injection molded-plastic part of the lamp base.

## Claims

### Claim 1

A lamp base having at least one power supply line (16) and sealing means for sealing off the lamp base in the region of the at least one power supply line (16), with the sealing means including at least one of features A, B and C,
wherein feature A comprises an elastomer (161) or rubber, which surrounds a section (16a) of the at least one power supply line (16) in an interlocking manner and annularly, this section of the at least one power supply line (16) which is surrounded by the elastomer (161) or rubber being embedded in a plastic injection-molded part (15) of the lamp base in an interlocking manner,
wherein feature B comprises a surface region of the at least one power supply line (716; 516), which is provided with a profile (7161) or a roughened portion (5161), this region of the at least one power supply line (716; 516) being embedded in a plastic injection-molded part (15) of the lamp base in an interlocking manner, and
wherein feature C comprises a section of the at least one power supply line (916) which is provided with slits (9161), this section of the at least one power supply line being embedded in a plastic injection-molded part (15) of the lamp base in an interlocking manner.

### Claim 2 (depends on 1)

The lamp base as claimed in claim 1, wherein an intermediate layer, which is formed by a primer, is arranged between the elastomer (161) or rubber and the at least one power supply line (16).

### Claim 3 (depends on 1)

The lamp base as claimed in claim 1, wherein a primer is arranged on the surface region of the at least one power supply line (716; 516) which is provided with the profile (7161) or the roughened portion (5161).

### Claim 4 (depends on 1)

The lamp base as claimed in claim 1, wherein a primer is arranged on the section of the at least one power supply line (916) which is provided with the slits (9161).

### Claim 5 (depends on 1)

The lamp base as claimed in claim 1, wherein the at least one power supply line comprises a sheet-metal part (16), and the sealing means (161) are arranged on the sheet-metal part (16).

### Claim 6 (depends on 1)

An electric lamp having a lamp base as claimed in claim 1.