Patents by Inventor Plamen V. Marinov
Plamen V. Marinov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11413692Abstract: A saw device includes a motor having a motor output shaft and a drivetrain that includes a gear train and a chain drive. The gear train has a first gear fixedly connected to the motor output shaft and a second gear fixedly connected to an intermediate shaft, the first gear meshing with the second gear so as to transmit rotation from the motor output shaft to the second gear. The chain drive has a driving sprocket fixedly connected to the intermediate shaft, a driven sprocket, and a chain configured to transmit rotation of the driving sprocket to rotation of the driven sprocket. The saw device further includes an arbor shaft fixedly connected to the driven sprocket, the arbor shaft configured to mount a saw blade such that the saw blade rotates with the arbor shaft, and an upper guard configured to enclose at least a portion of the saw blade.Type: GrantFiled: September 26, 2019Date of Patent: August 16, 2022Assignees: Robert Bosch Power Tools GmbH, Robert Bosch GmbHInventor: Plamen V. Marinov
-
Publication number: 20220023962Abstract: A machine tool, in particular a chop saw and/or miter saw, includes (i) at least one pivot arm, (ii) at least one drive unit arranged on the pivot arm, (iii) at least two energy storage units, in particular battery packs, which can be electrically connected in series, for supplying energy to the drive unit, and (iv) at least two coupling units for fastening the energy storage units to the pivot arm. The coupling units are arranged on the pivot arm at an offset to one another with respect to a longitudinal axis of the pivot arm, the longitudinal axis of the pivot arm running at least substantially parallel to coupling surfaces, in particular main extension planes, of the coupling units.Type: ApplicationFiled: December 10, 2019Publication date: January 27, 2022Inventors: Gregory A. Menze, Jana Bieser, Tina Ringshandl, Plamen V. Marinov, Philipp Freiburger
-
Patent number: 11148214Abstract: A rail system for a power tool has a base defining a work surface for supporting a workpiece, a support mounted to the base, a number of elongated rails slidably supported by the support for movement relative thereto, a yoke engaged to the number of elongated rails for movement with the elongated rails, and a power tool assembly supported by a yoke for performing an operation on the workpiece. A rail stop is movably mounted to one of the support and the yoke, the rail stop including a stop surface adapted to abut the other of the support and the yoke when the rail stop is in a first position between the yoke and the support. The rail stop is movable to a second position different from the first position.Type: GrantFiled: September 27, 2019Date of Patent: October 19, 2021Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventors: Plamen V. Marinov, Gwendolyn McDonald, Darek Smolinski
-
Publication number: 20210094109Abstract: A saw device includes a motor having a motor output shaft and a drivetrain that includes a gear train and a chain drive. The gear train has a first gear fixedly connected to the motor output shaft and a second gear fixedly connected to an intermediate shaft, the first gear meshing with the second gear so as to transmit rotation from the motor output shaft to the second gear. The chain drive has a driving sprocket fixedly connected to the intermediate shaft, a driven sprocket, and a chain configured to transmit rotation of the driving sprocket to rotation of the driven sprocket. The saw device further includes an arbor shaft fixedly connected to the driven sprocket, the arbor shaft configured to mount a saw blade such that the saw blade rotates with the arbor shaft, and an upper guard configured to enclose at least a portion of the saw blade.Type: ApplicationFiled: September 26, 2019Publication date: April 1, 2021Inventor: Plamen V. Marinov
-
Publication number: 20200030896Abstract: A rail system for a power tool has a base defining a work surface for supporting a workpiece, a support mounted to the base, a number of elongated rails slidably supported by the support for movement relative thereto, a yoke engaged to the number of elongated rails for movement with the elongated rails, and a power tool assembly supported by a yoke for performing an operation on the workpiece. A rail stop is movably mounted to one of the support and the yoke, the rail stop including a stop surface adapted to abut the other of the support and the yoke when the rail stop is in a first position between the yoke and the support. The rail stop is movable to a second position different from the first position.Type: ApplicationFiled: September 27, 2019Publication date: January 30, 2020Inventors: Plamen V. Marinov, Gwendolyn McDonald, Darek Smolinski
-
Patent number: 10442018Abstract: A rail system for a power tool has a base defining a work surface for supporting a workpiece, a support mounted to the base, a number of elongated rails slidably supported by the support for movement relative thereto, a yoke engaged to the number of elongated rails for movement with the elongated rails, and a power tool assembly supported by a yoke for performing an operation on the workpiece. A rail stop is movably mounted to one of the support and the yoke, the rail stop including a stop surface adapted to abut the other of the support and the yoke when the rail stop is in a first position between the yoke and the support. The rail stop is movable to a second position different from the first position.Type: GrantFiled: March 7, 2014Date of Patent: October 15, 2019Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventors: Plamen V. Marinov, Gwendolyn McDonald, Darek Smolinski
-
Patent number: 10369640Abstract: A powered saw including a saw blade configured to cut a workpiece and driven by a drive train having a narrow profile. The powered saw includes a miter saw having a chain drive disposed in a housing having a narrow profile. The powered saw includes a blade support assembly configured to reduce or eliminate interference between a workpiece and the powered saw. The miter saw enables a user to make right angle cuts, left angle cuts, and zero cuts of tall and atypically sized workpieces.Type: GrantFiled: December 8, 2014Date of Patent: August 6, 2019Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventor: Plamen V. Marinov
-
Patent number: 10286463Abstract: An apparatus includes a table assembly, a bevel post, a bevel pin, a spring, a locking arm, and a lever. The table assembly includes a table portion with a work surface and a hub portion with a first clamping surface. The bevel post includes a second clamping surface. The bevel pin pivotally connects the bevel post to the hub portion. The spring is configured to bias a movement of the bevel pin. The locking arm is configured to (i) disengage the spring such that the bevel pin releases the table assembly from the bevel post and (ii) engage the spring such that the bevel pin moves the table assembly towards the bevel post. The lever is movable between an unlocked position to provide an unclamped state and a locked position to provide a clamped state with respect to the first and second clamping surfaces.Type: GrantFiled: December 27, 2016Date of Patent: May 14, 2019Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventor: Plamen V. Marinov
-
Patent number: 10207345Abstract: A motorized saw assembly includes a base assembly having a workpiece support surface which defines a workpiece surface plane, an upper support assembly configured to support a saw blade, and a hinge assembly including a first linkage assembly and a second linkage assembly. The upper support assembly is configured to move between a first position, whereat the first linkage assembly and the second linkage assembly extend substantially perpendicular to the workpiece surface plane, and a second position, whereat the first linkage assembly and the second linkage assembly extend over the workpiece support surface.Type: GrantFiled: April 15, 2016Date of Patent: February 19, 2019Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventors: Plamen V. Marinov, Gregory A. Menze
-
Publication number: 20180178296Abstract: An apparatus includes at least a table assembly, a bevel post, a bevel pin, a spring, a locking arm, and a lever. The table assembly includes a table portion and a hub portion. The table portion includes a work surface. The hub portion includes a first clamping surface. The bevel post includes a second clamping surface. The bevel pin pivotally connects the bevel post to the hub portion. The spring is configured to bias a movement of the bevel pin. The locking arm is configured to (i) disengage the spring such that the bevel pin releases the table assembly from the bevel post in a first direction and (ii) engage the spring such that the bevel pin moves the table assembly towards the bevel post in a second direction. The lever is movable between an unlocked position and a locked position. When the lever is in the unlocked position, the first clamping surface of the hub portion is in an unclamped state with the second clamping surface of the bevel post.Type: ApplicationFiled: December 27, 2016Publication date: June 28, 2018Inventor: Plamen V. Marinov
-
Publication number: 20160303667Abstract: A powered saw including a saw blade configured to cut a workpiece and driven by a drive train having a narrow profile. The powered saw includes a miter saw having a chain drive disposed in a housing having a narrow profile. The powered saw includes a blade support assembly configured to reduce or eliminate interference between a workpiece and the powered saw. The miter saw enables a user to make right angle cuts, left angle cuts, and zero cuts of tall and atypically sized workpieces.Type: ApplicationFiled: December 8, 2014Publication date: October 20, 2016Inventor: Plamen V. Marinov
-
Publication number: 20160303666Abstract: A motorized saw assembly includes a base assembly having a workpiece support surface which defines a workpiece surface plane, an upper support assembly configured to support a saw blade, and a hinge assembly including a first linkage assembly and a second linkage assembly. The upper support assembly is configured to move between a first position, whereat the first linkage assembly and the second linkage assembly extend substantially perpendicular to the workpiece surface plane, and a second position, whereat the first linkage assembly and the second linkage assembly extend over the workpiece support surface.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Inventors: Plamen V. Marinov, Gregory A. Menze
-
Patent number: 9446536Abstract: A safety component is provided for a power saw that includes a rear guard pivotably mounted to the saw assembly. The rear guard is generally U-shaped to straddle the cutting blade in a deployed position. The rear guard includes arms that contact the workpiece during the cutting operation so that as the saw blade moves downward to perform the cut the rear guard pivots upward while maintaining protection of the rear portion of the saw blade.Type: GrantFiled: March 12, 2014Date of Patent: September 20, 2016Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbHInventor: Plamen V. Marinov
-
Publication number: 20160031021Abstract: A rail system for a power tool has a base defining a work surface for supporting a workpiece, a support mounted to the base, a number of elongated rails slidably supported by the support for movement relative thereto, a yoke engaged to the number of elongated rails for movement with the elongated rails, and a power tool assembly supported by a yoke for performing an operation on the workpiece. A rail stop is movably mounted to one of the support and the yoke, the rail stop including a stop surface adapted to abut the other of the support and the yoke when the rail stop is in a first position between the yoke and the support. The rail stop is movable to a second position different from the first position.Type: ApplicationFiled: March 7, 2014Publication date: February 4, 2016Inventors: Plamen V. Marinov, Gwendolyn McDonald, Darek Smolinski
-
Publication number: 20140260860Abstract: A safety component is provided for a power saw that includes a rear guard pivotably mounted to the saw assembly. The rear guard is generally U-shaped to straddle the cutting blade in a deployed position. The rear guard includes arms that contact the workpiece during the cutting operation so that as the saw blade moves downward to perform the cut the rear guard pivots upward while maintaining protection of the rear portion of the saw blade.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Applicants: Robert Bosch GmbH, Robert Bosch Tool CorporationInventor: Plamen V. Marinov