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특허 상세정보

Driving tool with air-cooled bumper

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B23B-045/16   
미국특허분류(USC) 173/139 ; 227/130 ; 227/156
출원번호 US-0285733 (1988-12-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 59  인용 특허 : 6
초록

A driving tool comprising a cylinder, a piston movable axially within the cylinder, a driving element movable conjointly with the piston so as to move through a central aperture of an end wall of the cylinder in a driving stroke and in a return stroke, and a bumper, which arrests movement of the piston toward the end wall of the cylinder in a driving stroke. The bumper is made of resilient material, such as cast polyurethane, in an annular shape. The bumper has a plurality of slots extending radially from each of its inner and outer peripheral surfaces a...

대표
청구항

A driving tool comprising: (a) a cylinder, which has a cylindrical wall and an end wall, the end wall having a central apertures, one of said walls having a plurality of ports; (b) a piston, which is movable axially within the cylinder, and which is arranged to be forcibly moved toward the end wall of the cylinder in a driving stroke of the piston and to be oppositely moved in a return stroke of the piston; (c) a driving element, which extends axially from the piston so as to be conjointly movable with the piston, and so as to pass through the central ap...

이 특허를 인용한 특허 피인용횟수: 59

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