Composite plug door for use on railcars

Inactive Publication Date: 2007-10-25
DURAKON INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011] The foregoing summary, as well as the following detailed description of preferred embodiments of the invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illu

Problems solved by technology

While such doors are strong and resilient, they pose certain disadvantages in that they are very heavy adding weight to the overall railcar weight and making them difficult to operate.
Further, they are subject to corrosion under exposure to the elements.

Method used

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  • Composite plug door for use on railcars
  • Composite plug door for use on railcars
  • Composite plug door for use on railcars

Examples

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Embodiment Construction

[0024] Certain terminology is used in the following description for convenience only and is not limiting. The words “lower” and “upper” and “top” and “bottom” designate directions in the drawings to which reference is made. The terminology includes the words above specifically mentioned, derivatives thereof and words of similar import.

[0025] Referring now to the drawings in detail, there is shown in FIG. 1 an embodiment of a plug door in accordance with a preferred embodiment, referred to generally as 10. It should be understood based on this disclosure that the embodiment as shown herein is a preferred embodiment for best illustrating the invention and that the invention should not be considered to be limited thereby. The door has a frame 12 that includes an outer frame 14 and, as shown in FIGS. 1 and 2 and an inner frame 16 as shown in FIGS. 1, 4 and 6. The frame 12, and more preferably the inner frame has at least two openings 18 as shown in FIG. 4. Preferably, there is a plural...

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Abstract

Composite doors are described which include a frame defining at least two openings and at least two composite panels situated within the openings in the frame. Preferred uses for such composite doors are as plug doors for use on railcars.

Description

BACKGROUND OF THE INVENTION [0001] Railcars are used generally for transporting goods and are equipped in many cases with doors known as “plug” doors. These doors slide open, generally on a track and by using a cranking mechanism for accessing the interior of the railcar. Such doors are traditionally known to be made of the same type of material as the railcar, i.e., steel. While such doors are strong and resilient, they pose certain disadvantages in that they are very heavy adding weight to the overall railcar weight and making them difficult to operate. Further, they are subject to corrosion under exposure to the elements. [0002] As a result, attempts have been made in the art to improve such doors. One such design includes a door in which the inner and outer portions of the door are formed of fiberglass-reinforced epoxy skins over an aluminum honeycomb-patterned core. The core is bonded to the skin with voids in the structure being plugged by insulation. A panel in the center of ...

Claims

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Application Information

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IPC IPC(8): E04C2/04
CPCB61D19/001
InventorHERLACHE, RUSSELL L.MONTAGNA, JOHN C.
OwnerDURAKON INDS