公开(公告)号：US11852212B2

公开(公告)日：2023-12-26

申请号：US16855380

申请日：2020-04-22

申请人： Invetech, Inc.

发明人： Chris Lo ,  Mark L'Italien

IPC分类号： H01F7/02 ,  F16F15/28

CPC分类号： F16F15/28 ,  H01F7/02

摘要： An adjustable magnetic counterbalance assembly wherein a counterbalance force of the adjustable magnetic counterbalance is adjustable. The adjustable magnetic counterbalance assembly includes at least one ferromagnetic tube; a magnet disposed in the at least one ferromagnetic tube and configured to be axially movable and wherein the magnet is configured to be rotationally movable relative to the respective at least one ferromagnetic tube; wherein the counterbalance force is configured to be adjustable by adjusting the rotational position between the magnet and a respective ferromagnetic tube to change the polar alignment of the magnet. Alternatively, the adjustable magnetic counterbalance assembly changes the counterbalance force based on the relative alignment of the poles of one magnet to an adjacent one.

公开(公告)号：US20200332857A1

公开(公告)日：2020-10-22

申请号：US16855380

申请日：2020-04-22

申请人： Invetech, Inc.

发明人： Chris Lo ,  Mark L'Italien

IPC分类号： F16F15/28 ,  H01F7/02

摘要： An adjustable magnetic counterbalance assembly wherein a counterbalance force of the adjustable magnetic counterbalance is adjustable. The adjustable magnetic counterbalance assembly includes at least one ferromagnetic tube; a magnet disposed in the at least one ferromagnetic tube and configured to be axially movable and wherein the magnet is configured to be rotationally movable relative to the respective at least one ferromagnetic tube; wherein the counterbalance force is configured to be adjustable by adjusting the rotational position between the magnet and a respective ferromagnetic tube to change the polar alignment of the magnet. Alternatively, the adjustable magnetic counterbalance assembly changes the counterbalance force based on the relative alignment of the poles of one magnet to an adjacent one.