IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0719649
(2001-01-17)
|
우선권정보 |
DE-0006763 (1999-04-16) |
국제출원번호 |
PCT/EP00/03365
(2000-04-14)
|
국제공개번호 |
WO00/63000
(2000-10-26)
|
발명자
/ 주소 |
- Langos, Peter
- Lehmann, Manfred
- Keusch, Stefan
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
5 |
초록
▼
The invention relates to an extrusion head (10) for a blow molding machine for producing two-layered hollow plastic bodies, including one or more extruders, connected to the extrusion head housing (12), for supply of molten plastic melt. In particular when using different plastic materials of differ
The invention relates to an extrusion head (10) for a blow molding machine for producing two-layered hollow plastic bodies, including one or more extruders, connected to the extrusion head housing (12), for supply of molten plastic melt. In particular when using different plastic materials of different viscosities, it is very important to create for both materials substantially the same rheological flow conditions when distributed across the circumference to form a tubular parison. This is attained in accordance with the invention by making the ejector piston of two concentric cylindrical sleeves which define between them an annular gap in which the two spiral-channel distributor elements are located in opposite disposition inside on the inner surface of the outer cylindrical sleeve and outside on the outer surface of the inner cylindrical sleeve, so that the circumferentially distributed plastic materials of both distributor elements exit at the lower end of the annular gap approximately centrally from the ejector piston into the storage space of the extrusion head.
대표청구항
▼
The invention relates to an extrusion head (10) for a blow molding machine for producing two-layered hollow plastic bodies, including one or more extruders, connected to the extrusion head housing (12), for supply of molten plastic melt. In particular when using different plastic materials of differ
The invention relates to an extrusion head (10) for a blow molding machine for producing two-layered hollow plastic bodies, including one or more extruders, connected to the extrusion head housing (12), for supply of molten plastic melt. In particular when using different plastic materials of different viscosities, it is very important to create for both materials substantially the same rheological flow conditions when distributed across the circumference to form a tubular parison. This is attained in accordance with the invention by making the ejector piston of two concentric cylindrical sleeves which define between them an annular gap in which the two spiral-channel distributor elements are located in opposite disposition inside on the inner surface of the outer cylindrical sleeve and outside on the outer surface of the inner cylindrical sleeve, so that the circumferentially distributed plastic materials of both distributor elements exit at the lower end of the annular gap approximately centrally from the ejector piston into the storage space of the extrusion head. ein said lens is configured to be mounted to an inside surface of a rear window of the vehicle. 9. The vehicle lamp assembly of claim 8, wherein said rear window is made of privacy glass. 10. The vehicle lamp assembly of claim 4, wherein said lens is configured to be mounted integrally within a window frame. 11. The vehicle lamp assembly of claim 2 and further including a camera and a support structure, wherein said camera and said at least one white-light-emitting discrete LED device are mounted on said support structure and oriented to emit light in a rearward direction from the vehicle and to capture images to the rear of the vehicle for display to a vehicle operator, wherein said camera captures images at periodic intervals and said at least one LED device is periodically activated to emit light during those intervals when said camera is not capturing images. 12. The vehicle lamp assembly of claim 2, wherein at least one of said LED chips emits red light. 13. The vehicle lamp assembly of claim 2, wherein said LED device further comprises an additional LED chip that emits red light. 14. The vehicle lamp assembly of claim 2, wherein said LED device emits red light in response to a brake signal. 15. The vehicle lamp assembly of claim 2, wherein said assembly is adapted to be mounted to the rear of the vehicle and to function as a center high-mounted stop light. 16. The vehicle lamp assembly of claim 2, wherein said LED device emits substantially white light in response to a back-up activation signal to serve as a back-up light. 17. The vehicle lamp assembly of claim 2, wherein said LED device emits substantially white light to function as a rear illumination light. 18. The vehicle lamp assembly of claim 17, wherein said LED device functions as a cargo light. 19. The vehicle lamp assembly of claim 2, wherein said LED device emits colored light in responsive to a turn signal. 20. The vehicle lamp assembly of claim 19, wherein said colored light is red. 21. The vehicle lamp assembly of claim 2, wherein said LED device emits red light in response to a running light signal. 22. A vehicle lamp assembly for mounting to a vehicle comprising at least one multichip LED device, said multichip LED device including a first LED chip and a second LED chip, where said first LED chip emits light having a first hue that is different from a second hue of light that is emitted by said second LED chip, said multichip LED device being selectively activated in response to an activation signal such that when the activation signal is received both said first and second LED chips are proportionately energized and light projected from said first and second LED chips overlaps and forms effective white light. 23. The vehicle lamp assembly of claim 22, wherein said lamp assembly is mounted to the rear of the vehicle and said LED device is oriented to emit light in a rearward direction from the vehicle. 24. The vehicle lamp assembly of claim 22, wherein said LED device further includes: an electrically conductive lead frame, wherein said first and second LED chips are mounted on said lead frame, and a polymer encapsulant for encapsulating said first and second LED chips on said lead frame, wherein said LEDs emit light through said encapsulant. 25. The vehicle lamp assembly of claim 22, wherein said lamp assembly is configured to be mounted to an inside surface of a rear window of the vehicle. 26. The vehicle lamp assembly of claim 25, wherein said rear window is made of privacy glass. 27. The vehicle lamp assembly of claim 22, wherein said lamp assembly is configured to be mounted integrally within a window frame. 28. The vehicle lamp assembly of claim 22 further comprising a camera and a lens, wherein said camera and said at least one multichip LED device are mounted behind said lens. 29. A vehicle lamp assembly comprising: a lamp structure comprising at least two LED chips, said lamp structure adapted for mounting to a vehicle, wherein, when pr
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