公开(公告)号：WO2020243191A8

公开(公告)日：2020-12-03

申请号：PCT/US2020/034733

申请日：2020-05-27

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： WEKWERT, James ,  EBNER, Jeremy, R. ,  THORSON, Troy, C. ,  STANKE, Zachary, G. ,  MUECKL, Gareth ,  BOLL, Alex, H.

IPC: B21D41/02 ,  B21D37/16 ,  B21C51/00 ,  B21D41/028

Abstract: A working element operable to expand an end of a tube includes a main body configured to rotate about an axis, a plurality of roller supports movably coupled to the main body, the roller supports movable relative to the main body between a retracted position and an expanded position, and a plurality of rollers coupled to the roller supports such that a distance between a first roller of the plurality of rollers and a second roller of the plurality of rollers increases when the roller supports move toward the expanded position. The rollers are configured to be inserted into the end of the tube when the roller supports are in the retracted position, and the rollers are engageable with an inner circumference of the tube when the main body rotates about the axis to expand the end of the tube.

公开(公告)号：WO2020014679A1

公开(公告)日：2020-01-16

申请号：PCT/US2019/041714

申请日：2019-07-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： DENISSEN, Ryan, J. ,  BOLL, Alex, H. ,  GRODE, Aaron, C. ,  MILLER, Justin

IPC: F25B47/00 ,  F25B49/02 ,  F25B21/00 ,  F25B41/04 ,  F04B17/03 ,  F04B49/02

Abstract: A system attachable to a refrigeration circuit includes a recovery pump attachable to the refrigeration circuit to remove refrigerant. The recovery pump includes a pump, an electric motor, a battery pack, and a recovery pump controller for controlling the operation of the electric motor. The recovery pump controller has a first communication interface. The system further includes an accessory attachable to the refrigeration circuit concurrently with the recovery pump. The accessory includes a sensor for detecting a characteristic value of the refrigeration circuit, and an accessory controller electrically connected with the sensor to receive a signal corresponding with the characteristic value of the refrigeration circuit. The accessory controller has a second communication interface to communicate the signal to the recovery pump controller via the first and second wireless interfaces. The recovery pump controller controls the operation of the electric motor based upon the signal received from the accessory.