公开(公告)号：US20180339406A1

公开(公告)日：2018-11-29

申请号：US15603109

申请日：2017-05-23

Applicant: Black & Decker Inc.

Inventor： Sandipkumar D. Patel ,  Ross Arthur Billings ,  Andrew Joseph Birkel

IPC: B25F5/00 ,  B25D9/08 ,  B23Q5/06

CPC classification number: B25F5/005 ,  B23Q5/06 ,  B25B21/00 ,  B25D9/08 ,  B25F5/00

Abstract: In a pneumatic-powered tool, a flow of air along a first or second flow path may be controlled by a position of air inlet guide surfaces of a rotatable valve relative to air inlet guide slots of a fixed valve sleeve. Air flowing along the first flow path may rotate a motor in a first direction to operate the tool in a forward mode. Air flowing along the second flow path may rotate the motor in the second direction to operate the tool in a reverse mode. In the forward mode, as air flows along the first flow path, air may be discharged along a primary discharge path, with a portion of the second flow path providing a secondary discharge path. In the reverse mode, as air flows along the second flow path, air may be discharged along the primary discharge path, with a portion of the first flow path providing the secondary discharge path.

公开(公告)号：US10513025B2

公开(公告)日：2019-12-24

申请号：US15603109

申请日：2017-05-23

Applicant: Black & Decker Inc.

Inventor： Sandipkumar D. Patel ,  Ross Arthur Billings ,  Andrew Joseph Birkel

IPC: B25F5/00 ,  B25D9/08 ,  B23Q5/06 ,  B25B21/00

Abstract: In a pneumatic-powered tool, a flow of air along a first or second flow path may be controlled by a position of air inlet guide surfaces of a rotatable valve relative to air inlet guide slots of a fixed valve sleeve. Air flowing along the first flow path may rotate a motor in a first direction to operate the tool in a forward mode. Air flowing along the second flow path may rotate the motor in the second direction to operate the tool in a reverse mode. In the forward mode, as air flows along the first flow path, air may be discharged along a primary discharge path, with a portion of the second flow path providing a secondary discharge path. In the reverse mode, as air flows along the second flow path, air may be discharged along the primary discharge path, with a portion of the first flow path providing the secondary discharge path.