Patents by Inventor Andrew Frolov

Andrew Frolov 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).

  • Publication number: 20140265102
    Abstract: A sliding table assembly for a main table of a saw machine includes a sliding table member having a planar upper surface, a miter slot, and a rail structure, and a bracket structure configured to be attached to a mounting structure on the main table of the table saw. The bracket structure is configured to squeeze the rail structure to provide zero clearance support for slidably retaining the sliding table member. Vertical and horizontal position adjustment mechanisms are operably connected to the bracket structure and configured to move at least a portion of the bracket structure horizontally as well as vertically with respect to the mounting structure to align the upper surface of the sliding table member in plane with the upper surface of the main table and to align the miter slot parallel to a blade of the saw machine.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Andrew Frolov
  • Publication number: 20140260869
    Abstract: A power tool includes a support arrangement and a work surface that is supported by the support arrangement and that includes a top surface having an opening configured to receive a rotatable blade. The power tool also includes a cutting assembly that is supported by the support arrangement and that includes a motor, a drive shaft driven by the motor, and the rotatable blade rotated by the drive shaft. The power tool also includes a height adjustment mechanism coupled to the support arrangement and to the cutting assembly. The height adjustment mechanism is configured to move the cutting assembly upwardly and downwardly relative to the top surface. The height adjustment mechanism includes a threaded shaft, at least one nut threadably coupled to the threaded shaft, and at least one connection member rotatably coupled to the at least one nut and to the cutting assembly.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Andrew Frolov
  • Patent number: 8770074
    Abstract: A table saw includes a base assembly having a base structure and side walls, a table top assembly top surface, and an undercarriage assembly including a motor. The undercarriage assembly is configured to adjust the vertical and angular position of a blade relative to the table top assembly, and includes an undercarriage frame and cover together defining a narrow housing configured and sized to enclose substantially all of an installed blade under the top surface. The housing has an upper pivot for adjusting the angular position of the blade and is configured to have the motor slidably mounted therein to adjust the vertical position of the blade. A removable port structure attached to a bottom portion of the undercarriage assembly has an outlet port at an outer end that is configured to be connected to a vacuum source.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: July 8, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Publication number: 20140182434
    Abstract: A power equipment in one embodiment includes a riving knife with a circular mounting hole opening to an outer surface of the riving knife through a throat, the throat having a minimum diameter that is less than a minimum diameter of the mounting hole, and an anti-kickback assembly including a generally cylindrical grooved shaft having a first diameter larger than a minimum diameter of the throat and a second diameter smaller than the minimum diameter of the throat, and an actuating arm operably connected to the grooved shaft and configured to rotate the grooved shaft from a first position whereat the second diameter is aligned with the throat and a second position whereat the second diameter is not aligned with the throat.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Andrew Frolov
  • Publication number: 20140174273
    Abstract: A guide assembly, or rip fence, supported by guides of a table saw includes a clamping apparatus having locking mechanisms located at each end of the guide assembly. Each of the locking mechanisms is independently adjustable to provide accurate and repeatable positioning of the guide assembly with respect to the table and with respect to the saw blade with self-alignment and desired force. An adjustable locking self-alignment spring provides for self-alignment of the rip fence with respect to the blade.
    Type: Application
    Filed: December 26, 2012
    Publication date: June 26, 2014
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Andrew Frolov
  • Patent number: 8752462
    Abstract: A table saw includes a table top having an opening configured to receive a saw blade, and a motor positioned under the table top and configured to rotate the saw blade about an axis of rotation. The saw blade includes a midline that extends through the saw blade at the axis of rotation and is perpendicular with respect to the table top when the saw blade is perpendicular with respect to the table. A blade case is positioned under the table top that includes a blade chamber defined by a first wall on one side of the blade, a second wall on an opposite side of the blade, and a third wall along an outer perimeter of the blade chamber. At least one dust deflector positioned within the blade chamber between the axis of rotation and the third wall of the blade chamber that extends through the midline.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: June 17, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Publication number: 20140157966
    Abstract: A power equipment includes a base defining an enclosure space, a table supported on the base, and a cutting assembly supported within the enclosure space below the table. The cutting assembly includes a motor having an output shaft and a dual stage drive system operably coupled to the output shaft. The output shaft defines a first axis of rotation. The dual stage drive system includes a first pinion mounted on the output shaft for rotation about the first axis, a first gear meshed with the first pinion and mounted on a first shaft that defines a second axis of rotation that is offset from the first axis, a second pinion mounted on the first shaft for rotation about the second axis, and a second gear meshed with the second pinion and mounted on a second shaft that defines a third axis of rotation. An arbor is connected to the second shaft for rotation about the third axis along with the second shaft. The first shaft is offset below the second shaft, and the output shaft is offset below the first shaft.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicants: Robert Bosch Tool Corporation
    Inventor: Andrew Frolov
  • Patent number: 8616104
    Abstract: A table saw includes a support arrangement, a table top assembly connected to the support arrangement, the table top assembly having (i) a work piece support surface, and (ii) a saw blade opening defined in the work piece support surface, a saw assembly supported under the table top assembly including a saw blade, and a saw assembly adjustment mechanism having a user actuator. The user actuator causes movement of the saw blade in relation to the work piece support surface. A first extension element extends from the support arrangement and defines a first extension space, and a second extension element extends from the support arrangement and defines a second extension space, wherein a first protection zone is defined between the first extension space and the second extension space, and wherein the actuator is completely contained within the first protection zone.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: December 31, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Andrew Frolov, Jason Feldner, Carl Cepress
  • Patent number: 8601926
    Abstract: Embodiments are disclosed for a table saw including a table top having a generally rectangular top surface with front, rear and opposing side surfaces and having a slot through which a saw blade can extend, a tubular sub-frame for supporting the table saw, the sub-frame having an outer periphery generally coextensive with the outer periphery of the table top, front and rear vertical metal panels having upper and lower transverse mounting portions interconnecting the sub-frame and the table top and left and right vertical side panels made of a composite material mounted on the sub-frame and extending generally between the front and rear metal panels.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: December 10, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8522658
    Abstract: A table saw is disclosed. The table saw includes a table top including an opening configured to receive a saw blade, a blade case positioned under the table top, the blade case including an interior portion with the saw blade partially positioned within the interior portion, the blade case configured to move relative to the table top, a motor coupled to the saw blade and configured to move relative to the table top, the saw motor configured to rotate the blade about a blade axis, and at least one moveable guard member positioned between the table top and the blade case, the at least one moveable guard member providing an obstruction to the interior portion of the blade case, and the at least one moveable guard member configured to pivot about a pivot axis when the motor is moved up or down or tilted relative to the table top, wherein the pivot axis is substantially perpendicular to the blade axis.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 3, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8418591
    Abstract: Embodiments are disclosed for a power table saw assembly that comprises a frame configured to retain a motor assembly for driving a rotatable blade, a table top assembly having a top surface with an opening through which a rotating blade can extend provided on the frame, and a base for supporting the frame thereon. A foldable extension table is pivotally connected to an axle fixedly provided in the base, for supporting a workpiece. The extension table is configured to be folded and pivoted about the axle to be stored within the base when the extension table is not in use. In one embodiment, the axle is provided in the rear of the base and generally perpendicular to the blade, so that the extension table can support a workpiece from the table top downstream of the blade. In another embodiment, the axle is provides on one side of the base and generally parallel to the blade, so that the extension table can support a workpiece that extends beyond the table top to one side of the blade.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: April 16, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8376307
    Abstract: A foldable stand for supporting an object, the stand being capable of being folded between an unfolded position and a thin flat folded position, comprising a top frame having a generally rectangular planar configuration with front and rear support members interconnected with left and right spaced apart side support members, each of the side support members having a hinge generally midway along the length thereof, permitting the top frame to be folded when the stand is in the folded position, a pair of foldable leg structures, one of which is attached to each side of the top frame for supporting the top frame, a retaining structure for engaging the object and a locking mechanism for engaging the object, wherein manipulation of the top frame to rotate the hinge between the folded and unfolded positions causes each of the leg structures to be correspondingly moved between folded and unfolded positions.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: February 19, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8312799
    Abstract: A rip fence for a table saw including a front rail and a rear rail. The rip fence includes a front clamping mechanism having a locking tip positioned adjacent to the front rail, a pivotable activation plate and a handle. A rear clamping mechanism is positioned adjacent to the rear rail, and the activation plate is coupled to the rear clamping mechanism where the handle is movable between a release position and a locking position. The activation plate includes a rolling member movable between an upper end and a lower end of the activation plate, wherein when the handle is moved from the release position to the locking position, the rolling member moves from the upper end to the lower end of the activation plate, causing the activation plate to move the rear clamping mechanism into engagement with the rear rail.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: November 20, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Patent number: 8240237
    Abstract: A guide fence assembly for use with a work table of a table-based device, where the assembly includes an elongated fence body that extends in a longitudinal direction between front and rear ends thereof, and a front glide member that is attached to the elongated fence body. The front glide member is configured and arranged to glide along a front rail of the table-based device. Preferably, there is at least one magnetic element attached to the elongated fence body at a position between the front glide member and the front end of the elongated fence body. The at least one magnetic element is configured and arranged to apply a magnetic attraction force directed in the longitudinal direction toward the rear end of the elongated fence body. Preferably, there is also a locking mechanism for locking the guide fence assembly into a locked position with respect to the work table.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: August 14, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Andrew Frolov
  • Publication number: 20120048089
    Abstract: Embodiments of a power saw are disclosed which comprise a base structure including a generally flat top having an upper work surface with the top having an opening through which a circular blade can extend, a relatively narrow box-like undercarriage pivotably mounted to the base around a pivot axis to provide an adjustable bevel angle of the blade relative to the top, and a motor saw assembly comprising an arbor shaft for mounting a circular blade thereon, a drive motor having an output shaft extending generally parallel to the plane of the blade, the output shaft being oriented 90 degrees relative to the arbor shaft, a speed reducing gear train interconnecting the output shaft and the arbor shaft, a gear housing enclosing the gear train, the motor saw assembly being adjustably mounted to the undercarriage to vary the portion of the blade that extends above the upper work surface.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Andrew Frolov
  • Publication number: 20120036972
    Abstract: A table saw is disclosed. The table saw includes a table top which includes an opening configured to receive a saw blade, and a motor positioned under the table top and configured to rotate the saw blade about an axis of rotation, wherein a midline that defines a front portion and a rear portion of the saw blade extends through the saw blade at the axis of rotation and is perpendicular with respect to the table top when the saw blade is perpendicular with respect to the table, a blade case positioned under the table top, the blade case including a blade chamber defined by a first wall on one side of the blade, a second wall on an opposite side of the blade, and a third wall along an outer perimeter of the blade chamber, and at least one dust deflector positioned within the blade chamber between the axis of rotation and the third wall of the blade chamber, the at least one dust deflector extending through the midline.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Andrew Frolov
  • Publication number: 20120036976
    Abstract: A table saw is disclosed. The table saw includes a table top including an opening configured to receive a saw blade, a blade case positioned under the table top, the blade case including an interior portion with the saw blade partially positioned within the interior portion, the blade case configured to move relative to the table top, a motor coupled to the saw blade and configured to move relative to the table top, the saw motor configured to rotate the blade about a blade axis, and at least one moveable guard member positioned between the table top and the blade case, the at least one moveable guard member providing an obstruction to the interior portion of the blade case, and the at least one moveable guard member configured to pivot about a pivot axis when the motor is moved up or down or tilted relative to the table top, wherein the pivot axis is substantially perpendicular to the blade axis.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Andrew Frolov
  • Publication number: 20120006170
    Abstract: A table saw is disclosed.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventors: Andrew Frolov, Jason Feldner, Carl Cepress
  • Publication number: 20110297799
    Abstract: A foldable stand for supporting an object, the stand being capable of being folded between an unfolded position and a thin flat folded position, comprising a top frame having a generally rectangular planar configuration with front and rear support members interconnected with left and right spaced apart side support members, each of the side support members having a hinge generally midway along the length thereof, permitting the top frame to be folded when the stand is in the folded position, a pair of foldable leg structures, one of which is attached to each side of the top frame for supporting the top frame, a retaining structure for engaging the object and a locking mechanism for engaging the object, wherein manipulation of the top frame to rotate the hinge between the folded and unfolded positions causes each of the leg structures to be correspondingly moved between folded and unfolded positions.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicants: Robert Bosch GmbH, Robert Bosch Tool Corporation
    Inventor: Andrew Frolov
  • Patent number: 8052399
    Abstract: A peristaltic pump is presented comprising a housing and a rotor assembly supported by the housing. An occlusion bed is slideably mounted in the housing. A door is pivotable about a shaft, which is supported by the housing. A pinion gear is coupled to the shaft and engages a rack on the occlusion bed. Rotation of the shaft causes the occlusion bed to slide toward or away from the rotor assembly. An open portion of a tube retaining system is associated with the housing and a clamping portion of the tube retaining system is associated with the door. The open portion and the clamping portion of the tube retaining system are configured to secure flexible tubing therebetween when the door is in a closed position.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: November 8, 2011
    Assignee: Cole-Parmer Instrument Company
    Inventors: Jim Stemple, Andrew Frolov