公开(公告)号：US20230113955A1

公开(公告)日：2023-04-13

申请号：US17866997

申请日：2022-07-18

申请人： Claude E. Keller

发明人： Claude E. Keller

IPC分类号： F42B6/00

摘要： A new dart has an integrally formed flight part that is made of thin plastic with a uniform thickness. The flight part has a set of flexible blades that are radially offset, with the width of each blades being coplanar, and extending perpendicular to the longitudinal axis of a stem on which a barrel and dart tip are connected. Edges on a central portion of the flight part engage cooperating surfaces on a retainer, locking the retainer and the flight part against rotation with respect to each other. A self-lubricating bearing fits over the a stem and is used to connect to the flight part and the retainer for rotation with respect to a barrel and dart tip. A channel extends along the length of each blade. A bubble is positioned outwardly of the channel.

公开(公告)号：US11852453B2

公开(公告)日：2023-12-26

申请号：US17866997

申请日：2022-07-18

申请人： Claude E. Keller

发明人： Claude E. Keller

IPC分类号： A63B65/02 ,  F42B6/06 ,  F42B6/00

CPC分类号： F42B6/003

摘要： A new dart has an integrally formed flight part that is made of thin plastic with a uniform thickness. The flight part has a set of flexible blades that are radially offset, with the width of each blades being coplanar, and extending perpendicular to the longitudinal axis of a stem on which a barrel and dart tip are connected. Edges on a central portion of the flight part engage cooperating surfaces on a retainer, locking the retainer and the flight part against rotation with respect to each other. A self-lubricating bearing fits over the a stem and is used to connect to the flight part and the retainer for rotation with respect to a barrel and dart tip. A channel extends along the length of each blade. A bubble is positioned outwardly of the channel.