Robert Boschgmbh

Credo Technology Corporation

Ralf Bocka

Joseph Wascow

James Richard Hartmann

Thomas Schomisch

Albrecht Hofmann

Harold R Botefuhr

Patrick B Thomas

Joseph Z Wascow

A locking mechanism for a rotary power tool that includes an elongated locking member that is retained by, and is at opposite first and second end portions within, at least one of a motor housing and a gearbox end casting and being slideable between unlocked and locked positions, the locking member first end portion being accessible by a user to move the locking member to the locked position. The locking member also includes a locking portion intermediate the first and second end portions that is configured to engage the non-circular configured portion of a rotatable armature shaft and prevent rotation thereof when the locking member is in its locked position. A biasing element is also included and configured to bias the locking member toward said unlocked position.

Rotating shaft locking mechanism

A handheld power tool has a housing, a rotating cutting tool having a clamping neck structurally connected to the housing, a guard hood that covers the cutting tool and has a guard hood part and a slip-on ring for receiving the guard hood releasably and adjustably on the clamping neck, the slip-on ring being connected to the guard hood part and having detent means for axially securing the slip-on ring to the clamping neck, and additional torsion-prevention means configured as a stop flange provided on the guard hood, the flange being provided in addition to the slip-on ring and connected to the guard hood part so that, in an installed state the stop flange is in contact with a component of the power tool that is structurally connected to the housing.

Handheld power tool with a guard hood

A repositionable operating lever including a lever body having a handle and a generally hollow cylindrical housing, an inner end portion of which has a multi-faced wall configured to engage a multi-faced head portion of an adjusting member, an adjusting member positioned in the cylindrical housing and having a multi-faced head portion engaging the multi-faced wall of the inner end portion, a generally cylindrical end piece configured to fit within an outer end portion of the cylindrical housing, a biasing member having a inner end and a outer end, and wherein the lever body is capable of being moved in the outer direction relative to the adjusting member by manipulation overcoming the biasing force whereby the multi-faced head portion and the multi-faced wall disengage from one another, permitting relative rotation of the lever body and the adjusting member to reposition the lever body on the adjusting member.

Universal locking lever

A circular saw has one or more louvers in the housing which direct air exiting the housing toward a work piece, together with openings in other components of the saw located between the louvers and the work piece so that sawdust and other debris that is produced during operation of the saw will be blown out of the way and will not interfere with the line of sight of the user.

Bevel quadrant and gearbox louver blower system

A circular saw assembly of the type that includes a motor housing, a handle coupled to the motor housing, a generally circular saw blade disposed within a blade housing at a first end of the motor housing, and a foot member through which the blade extends for guiding the saw assembly along a work surface, where the circular saw assembly including a depth of cut locking system and an angle of cut locking system. The depth of cut locking system includes an arcuate bracket with an arcuate slot, and an engagement member extends through the slot and is operatively connected to the motor housing and slideable in the arcuate slot. The angle of cut locking system includes a bracket having an arcuate slot and an engagement member movable in the slot and configured to the bracket. A biasing member is provided to bias the engagement member, and at least one detent recess is provided to retain the engagement member therein.

Bevel and depth of cut detent system

A brush-holder system for an electric motor which is the type which has a rotating commutator that is journaled in a first motor housing portion, the assembly includes a second motor housing portion configured to be matingly connected to the first motor housing portion and having at least one brush holding pocket therein. The pocket is formed by a structure of the second motor housing portion which defines a support surface on one side thereof and a bridge portion on an opposite side thereof. The system further includes an elongated brush having first and second ends, wherein the first end is configured to be coupled to a biasing member and the second end is configured to contact the motor commutator, and at least one removable brush-holder having a first open end configured to receive the brush therein and to fit in the pocket, and a second open end enabling the brush to extend outwardly therefrom to contact the motor commutator. The system also includes a biasing member coupled to the brush, and an end cap coupled to the first open end and configured to be in abutment with the biasing member to bias the brush toward the motor commutator.

Growing community of inventors

Musberg, Germany

Ralf Bocka