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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0154585 (1993-11-18) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A retention system is described for retaining a bolt in an opening in a screen rail to prevent the bolt from falling out after the fastener has been removed from the bolt, The retention system is a rubber disk which is positioned adjacent the screen rail, The rubber disk includes an aperture in regi
An improved screen rail of the type having first and second side surfaces and upper and lower portions, wherein said upper portion is curved in the direction of said first side surface, wherein said lower portion includes a leg projecting in the direction of said first side surface, and at least one
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