公开(公告)号：US12085065B2

公开(公告)日：2024-09-10

申请号：US17506595

申请日：2021-10-20

申请人： Golden Bear LLC

发明人： Joshua Robert Sikora ,  Charles Russell Patzer ,  Jack Louis Kime

IPC分类号： F04B1/0408 ,  F04B1/0413 ,  F04B1/0426 ,  F04B1/0531 ,  F04B9/04

CPC分类号： F04B1/0408 ,  F04B1/0413 ,  F04B1/0426 ,  F04B1/0531 ,  F04B9/042

摘要： A strapping tool and a pump used thereby are disclosed herein. The strapping tool includes a battery-powered motor; a hydraulic assembly operatively coupled to the battery-powered motor; and a sealing assembly, the sealing assembly comprising at least one crimping jaw member, the hydraulic assembly operatively coupling the at least one crimping jaw member to the battery-powered motor, and the at least one crimping jaw member of the sealing assembly configured to crimp or notch a strapping seal member so as to secure a piece of strapping around a package or bundle of items. The pump includes a pump rotor; and a plurality of balls displaced by the pump rotor, the plurality of balls configured to displace a fluid in the pump. The pump contains no linkage members and no piston.

公开(公告)号：US20230358217A1

公开(公告)日：2023-11-09

申请号：US18142104

申请日：2023-05-02

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Thomas Richard Chase ,  Perry Yan-Ho Li ,  Michael B. Rannow

IPC分类号： F04B1/0452 ,  F04B1/0413 ,  F04B1/0531

CPC分类号： F04B1/0531 ,  F04B1/0413 ,  F04B1/0452

摘要： A partial stroke pump or motor includes a piston coupled to a rotating shaft to evacuate a fluid within a cylinder during an upstroke. A latching check valve includes an actuator piston that is displaceable within a center cavity to bypass a blocking member in a bypass state. The actuator piston is driven by a latch supply line. A spool of a rotary valve selectively couples one of the low and pilot pressure supplies to the latch supply line over different timing angle ranges of the rotating shaft. Coupling of the pilot pressure to the latch supply line causes the bypass state. When operating as a pump, the bypass state causes the pressure in the cylinder to fall below the high pressure during part of the upstroke. When operating as a motor, the bypass state allows the fluid to be evacuated from the cylinder during the upstroke.

公开(公告)号：US11608831B2

公开(公告)日：2023-03-21

申请号：US16818532

申请日：2020-03-13

申请人： BAIER & KOEPPEL GMBH & CO. KG

发明人： Bernhard Koeppel ,  Thomas Wolf

IPC分类号： F04D13/02 ,  F04D29/049 ,  F04B53/16 ,  F16N13/02 ,  F04B53/14 ,  F04B53/22 ,  F04B1/0531 ,  F04B1/053

摘要： A lubricant pump for conveying lubricant from a lubricant reservoir to a pump outlet includes a pump housing with a longitudinal axis. The pump housing has a receiving opening for a pump unit, a lubricant inlet opening and a lubricant outlet opening opening into the receiving opening, a pump drive, and a pump unit with a reciprocatingly movable delivery piston. The pump unit has a suction opening, which corresponds with the lubricant outlet opening when the pump unit is inserted into the receiving opening, and an outlet opening for lubricant. A coupling mechanism for driving the at least one pump unit includes an eccentric element which is rotatable about the longitudinal axis, a drive-side coupling section connected to the eccentric element, and a pump-side coupling section. The drive-side coupling section and the pump-side coupling section can be connected to one another automatically via a resilient latching connection.