公开(公告)号：US12179325B2

公开(公告)日：2024-12-31

申请号：US18110595

申请日：2023-02-16

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Mitchell T. Neuhoff ,  Mark C. Hughes ,  Jacob N. Zimmerman ,  Ivan N. Zozulya ,  Travis W. Leathrum ,  Troy C. Thorson ,  Michael B. Koeppel ,  Bradley S. Houskamp ,  Lokeshwaran Rajendran ,  Mitchell A. Ellena ,  David C. Graf ,  Caleb M. Schober

IPC: B25C1/00 ,  B25C1/06

Abstract: A powered fastener driver includes a housing, a nosepiece extending from the housing, a driver blade movable within the nosepiece between a ready position and a driven position the driver blade comprising a plurality of drive teeth on a first side of the driver blade and a plurality of locking projections on a second side of the driver blade, a piston coupled to the driver blade for movement therewith, a driver cylinder within which the piston is movable, a storage chamber cylinder containing pressurized gas therein and in fluid communication with the driver cylinder, a first end of the driver cylinder being affixed to a corresponding first end of the storage chamber cylinder, and a latch actuator assembly adjacent the driver blade, wherein the latch actuator assembly includes a latch to engage one of the plurality of locking projections to prevent the driver blade from moving toward the driven position.

公开(公告)号：US20240308042A1

公开(公告)日：2024-09-19

申请号：US18577004

申请日：2022-07-15

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： David A. Bierdeman ,  Troy C. Thorson ,  Jacob N. Zimmerman ,  Andrew R. Wyler ,  Travis W. Leathrum ,  David C. Graf ,  Alex J. Brasel

IPC: B25C1/04 ,  B25C1/00 ,  B25C1/06

CPC classification number: B25C1/047 ,  B25C1/008 ,  B25C1/06

Abstract: A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a driver blade attached to the piston and movable therewith between a top-dead-center position and a bottom-dead-center position, the driver blade defining a driving axis, a lifter operable to move the driver blade from the bottom-dead-center position toward the top-dead-center position, the lifter is configured to engage the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position, a bumper positioned beneath the piston in a vertical direction to absorb impact energy from the piston, and a valve positioned in the storage chamber cylinder. In response to the piston compressing the bumper while absorbing impact energy from the piston, the valve adds pressurized air from the cylinder to the storage chamber cylinder.

公开(公告)号：US20230122029A1

公开(公告)日：2023-04-20

申请号：US18068576

申请日：2022-12-20

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： David A. Bierdeman ,  Troy C. Thorson ,  Jacob N. Zimmerman ,  Andrew R. Wyler ,  Travis W. Leathrum ,  David C. Graf ,  Alex J. Brasel

IPC: B25C1/00 ,  B25C1/04

Abstract: A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a driver blade extending from a first side of the piston and movable therewith between a top-dead-center position and a bottom-dead-center position, a one-way seal carried onboard the piston and disposed between the piston and the cylinder, the one-way seal being configured permit a bypass flow of pressurized air from the first side of the piston, past the one-way seal, and into a space within the cylinder adjacent an opposite, second side of the piston during movement of the piston and driver blade from the top-dead-center position to the bottom-dead-center position, thereby increasing a pressure of the pressurized air within the cylinder and storage chamber cylinder, and a pressure relief valve in fluid communication with the storage chamber cylinder.

公开(公告)号：US11571794B2

公开(公告)日：2023-02-07

申请号：US17719855

申请日：2022-04-13

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： David A. Bierdeman ,  Troy C. Thorson ,  Jacob P. Schneider ,  Mackenzie J. Nick ,  Nathan Bandy ,  Travis W. Leathrum ,  Mitchell T. Neuhoff ,  Mark C. Hughes ,  David C. Graf ,  Marcus Wechselberger ,  Leonard F. Mikat-Stevens ,  Jacob N. Zimmerman ,  Jason M. Julius ,  Rosalie C. Phillips ,  Beth E. Cholst

IPC: B25C1/04 ,  B25C1/06

Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The lifter having a body and a drive pin coupled to the body. A roller is positioned on the drive pin and engages with a tooth of the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position. The roller includes a first engagement section that receives an end portion of the tooth and a second engagement section. An engagement member engages the second engagement section for aligning the first engagement section of the roller with the end portion of the tooth to facilitate meshing between the end portion of the tooth and the roller.

公开(公告)号：US11951601B2

公开(公告)日：2024-04-09

申请号：US17584060

申请日：2022-01-25

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Beth E. Cholst ,  Troy C. Thorson ,  Jacob P. Schneider ,  Mackenzie J. Nick ,  Nathan Bandy ,  David A Bierdeman ,  Travis W. Leathrum ,  Mitchell T. Neuhoff ,  Mark C. Hughes ,  David C. Graf ,  Marcus Wechselberger

IPC: B25C1/06 ,  B25C1/04

CPC classification number: B25C1/047 ,  B25C1/041 ,  B25C1/06

Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and configured to receive torque from the drive unit for returning the driver blade from the BDC position toward the TDC position. The lifter has a body, a drive pin coupled to the body, and a roller positioned on the drive pin. The roller includes an engagement section configured to receive an end portion of a tooth of the driver blade. The lifter includes a means for aligning the engagement section with the end portion of the tooth on the driver blade to facilitate meshing between the end portion and the roller.

公开(公告)号：US20230264332A1

公开(公告)日：2023-08-24

申请号：US18110595

申请日：2023-02-16

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Mitchell T. Neuhoff ,  Mark C. Hughes ,  Jacob N. Zimmerman ,  Ivan N. Zozulya ,  Travis W. Leathrum ,  Troy C. Thorson ,  Michael B. Koeppel ,  Bradley S. Houskamp ,  Lokeshwaran Rajendran ,  Mitchell A. Ellena ,  David C. Graf ,  Caleb M. Schober

IPC: B25C1/00 ,  B25C1/06

CPC classification number: B25C1/003 ,  B25C1/06

Abstract: A powered fastener driver includes a housing, a nosepiece extending from the housing, a driver blade movable within the nosepiece between a ready position and a driven position the driver blade comprising a plurality of drive teeth on a first side of the driver blade and a plurality of locking projections on a second side of the driver blade, a piston coupled to the driver blade for movement therewith, a driver cylinder within which the piston is movable, a storage chamber cylinder containing pressurized gas therein and in fluid communication with the driver cylinder, a first end of the driver cylinder being affixed to a corresponding first end of the storage chamber cylinder, and a latch actuator assembly adjacent the driver blade, wherein the latch actuator assembly includes a latch to engage one of the plurality of locking projections to prevent the driver blade from moving toward the driven position.

公开(公告)号：US20220226978A1

公开(公告)日：2022-07-21

申请号：US17686999

申请日：2022-03-04

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Coby A. Nettleton ,  Leonard F. Mikat-Stevens ,  Marcus Wechselberger ,  David C. Graf ,  Alex D. Servais

IPC: B25C5/15 ,  B25C5/16

Abstract: A fastener driver includes a housing defining a head portion and a handle portion, a drive mechanism positioned within the housing, and a firing mechanism. The firing mechanism includes a piston, a driver blade attached to the piston, a biasing member having a first end supported within the piston and a second end supported by the head portion, and a damper positioned between the firing mechanism and the head portion of the housing. The damper configured to attenuate one or more of noise or vibration from the firing mechanism as the driver blade moves from the top dead center position toward the bottom dead center position.

公开(公告)号：US20220143798A1

公开(公告)日：2022-05-12

申请号：US17584060

申请日：2022-01-25

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Beth E. Cholst ,  Troy C. Thorson ,  Jacob P. Schneider ,  Mackenzie J. Nick ,  Nathan Bandy ,  David A. Bierdeman ,  Travis W. Leathrum ,  Mitchell T. Neuhoff ,  Mark C. Hughes ,  David C. Graf ,  Marcus Wechselberger

IPC: B25C1/04

Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and configured to receive torque from the drive unit for returning the driver blade from the BDC position toward the TDC position. The lifter has a body, a drive pin coupled to the body, and a roller positioned on the drive pin. The roller includes an engagement section configured to receive an end portion of a tooth of the driver blade. The lifter includes a means for aligning the engagement section with the end portion of the tooth on the driver blade to facilitate meshing between the end portion and the roller.