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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0716577 (1985-03-27) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 11 |
A generally circular cover for closing a hatch opening in a railroad car hopper is connected to a diametral support bar for limited pivotal movement to provide uniform gasket loading between the cover member and the hatch coaming. One end of the support bar is hinged to the hopper roof and the oppos
A cover for closure over a hatch opening in a railway car hopper means or the like, comprising; a cover member adapted to be closed over means forming a hatch opening in said hopper means; hinge means connected to said cover member for moving said cover member between an open position and a closed p
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