Cutter Hood Or Dust Conveyor Patents (Class 144/252.1)
  • Patent number: 6699108
    Abstract: A rotary woodworking machine includes first, second and third rotary woodworking members, and a dust collecting mechanism. The dust collecting mechanism includes first, second, and third dust collecting units for collecting wood dust generated during a woodworking operation of the first, second and third rotary woodworking members, respectively, a dust accommodating unit for receiving the wood dust from the first, second and third dust collecting units, and a blower mechanism which is connected to and which is in fluid communication with the dust accommodating unit and which is operable so as to draw the wood dust in the dust accommodating unit out of the rotary woodworking machine.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: March 2, 2004
    Inventor: Pei-Lieh Chiang
  • Patent number: 6688349
    Abstract: A hand planing machine has a housing composed of a plurality of shells tightly connected with one another, a planing shaft, a motor for driving the planing shaft, means forming a chip withdrawing opening, the motor and the chip withdrawing opening being arranged axes-parallel to one another and extending outwardly at a same side, the shells including a single cover shell which simultaneously surrounds the motor and the chip withdrawing opening and forms a lateral outer surface of the housing.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: February 10, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Shila Roshilavati Razlan, Juergen Gairing, Juergen Stoeger, Marco Braun
  • Patent number: 6651710
    Abstract: A dust-sucking and power-driving motor has the opposite ends of a rotating shaft respectively formed into a wind-release driving portion connected with a wind-releasing device, and an operation driving portion connected with a carpentering machine, not only activating a blade fan of the wind-releasing device to rotate and carry on sucking scraps of wood, but also driving a carpentering machine to work.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: November 25, 2003
    Inventor: Bor Yann Chuang
  • Publication number: 20030205292
    Abstract: A gauge for measuring the extent of alteration in the level of carriage on which a power tool such as a router or saw is mounted. The carriage is mounted beneath a working surface on which a piece of work is placed. The cutting implement of the power tool such as a bit or blade projects through an opening in the working surface and terminates above the surface. The carriage may be raised and lowered and the gauge records any movement of the carriage. A clutch allows the gauge to be manually adjusted without affecting the level of the carriage. A hollow chamber is mounted beneath the working surface and through which the cutting implement extends. Air within the chamber is evacuated in order to create a vacuum for withdrawing debris resulting from the cutting of the work piece from the area where cutting takes place.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 6, 2003
    Inventor: Darrin Eugene Smith
  • Patent number: 6640854
    Abstract: The invention relates to a treatment unit with a cutting tool (1) for treating wood, plastic or the like. Said treatment unit comprises a suction hood (6) with a ring (17) that encircles the tool (1) completely in the circumferential direction and at least partially in the axial direction. The suction hood (6) is located on the side of the drive spindle of the tool (1). A chip receiving opening (10) is provided in the tool (1) in the vicinity of the blade (4), said opening traversing the tool (1) in both the axial and the radial direction. A chip formed at the blade (4) is transported through the chip receiving opening (10) to the suction hood (6) from where the chip is removed by air suction.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 4, 2003
    Assignee: Ledermann GmbH
    Inventors: Kurt Kalmbach, Wilhelm Kalmbach, Hans-Jürgen Gittel, Ewald Westfal
  • Publication number: 20030196725
    Abstract: A dust-sucking and power-driving motor has the opposite ends of a rotating shaft respectively formed into a wind-release driving portion connected with a wind-releasing device, and an operation driving portion connected with a carpentering machine, not only activating a blade fan of the wind-releasing device to rotate and carry on sucking scraps of wood, but also driving a carpentering machine to work.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Inventor: Bor Yann Chuang
  • Publication number: 20030188803
    Abstract: A wood planing machine includes a support carriage movably mounted on a mounting frame for supporting a cutting shaft. A motor housing and a shaving collecting member are mounted on the carriage. The collecting member confines a shaving passageway in the vicinity of the cutting shaft and in fluid communication with an air conduit such that an air stream introduced from the motor housing can entrain wood shavings collected in the collecting member. A blower mechanism includes a drive shaft coupled to and driven by the cutting shaft for rotating an impeller for drawing wood shavings from the collecting member into the blowing mechanism and out of a discharge member.
    Type: Application
    Filed: May 24, 2002
    Publication date: October 9, 2003
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6629548
    Abstract: A sawdust collecting device includes a flexible sleeve having a tapered top section with an open top end, and a bottom section having an open bottom end. A truncated cone-shaped coil spring is disposed in the tapered top section of the flexible sleeve, and abuts against an inner wall of the tapered top section of the flexible sleeve so as to expand the tapered top section of the flexible sleeve. A sawdust collector is disposed below the flexible sleeve, and has an open top end connected to the open bottom end of the flexible sleeve.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: October 7, 2003
    Inventor: Pei-Lieh Chiang
  • Patent number: 6626617
    Abstract: In order to further develop a process for making a groove in a board-like workpiece by means of a processing machine, wherein the workpiece is placed on a supporting table of the processing machine aligned essentially horizontal for holding the workpiece in a machining plane and wherein a milling unit held on a machining head of the processing machine is displaced and a groove is thereby milled into a workpiece by means of a milling disk rotating about a drive shaft aligned parallel to the machining plane, in such a manner that the groove can be milled more precisely with a defined groove depth it is suggested in accordance with the invention that the milling unit be guided at right angles to the machining plane by means of a touch roller associated with the milling disk and adapted to roll on the workpiece. In addition, a processing machine for carrying out the process is suggested as well as the use of the processing machine for the milling of a groove into a multilayered or composite material board.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: September 30, 2003
    Assignee: Reich Spezialmaschinen GmbH
    Inventors: Denis Lorber, Fritz Maiero
  • Patent number: 6601621
    Abstract: A portable power planer for planing the top surface of a workpiece. The portable power planer includes a novel base assembly, a carriage elevation mechanism, a cutterhead assembly, a carriage locking mechanism, a setting mechanism, a height scale mechanism, a material removal gauge, a motor, a dust collection mechanism and a power take-off mechanism.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: August 5, 2003
    Assignee: Black & Decker Inc.
    Inventors: Barry Wixey, Robert P. Welsh, David L. Wikle, David J. Doss
  • Publication number: 20030106613
    Abstract: The invention relates to a treatment unit with a cutting tool (1) for treating wood, plastic or the like. Said treatment unit comprises a suction hood (6) with a ring (17) that encircles the tool (1) completely in the circumferential direction and at least partially in the axial direction. The suction hood (6) is located on the side of the drive spindle of the tool (1). A chip receiving opening (10) is provided in the tool (1) in the vicinity of the blade (4), said opening traversing the tool (1) in both the axial and the radial direction. A chip formed at the blade (4) is transported through the chip receiving opening (10) to the suction hood (6) from where the chip is removed by air suction.
    Type: Application
    Filed: March 15, 2002
    Publication date: June 12, 2003
    Inventors: Kurt Kalmbach, Wilhelm Kalmbach, Hans-Jurgen Gittel, Ewald Westfal
  • Patent number: 6571838
    Abstract: A wood machining apparatus includes a sawdust collector having a supporting wall that supports a base of a cutter carriage thereon, two upright walls extending downward from the supporting wall to define a bin-receiving space therebetween, a mounting rod extending between bottom ends of the upright walls, and a sawdust collecting bin pivoted to the mounting rod in such a manner that the bin is turnable about the mounting rod between a sawdust collecting position, in which, a top opening of the bin is confined in the bin-receiving space to receive sawdust discharged from the cutter carriage, and a sawdust removing position, in which, the top opening is exposed outwardly of the bin-receiving space to facilitate removal of the sawdust from the bin.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 3, 2003
    Inventor: Pei-Lieh Chiang
  • Patent number: 6532643
    Abstract: A table tool includes one or more tool members disposed in a table, and a shield movably secured on the table. The shield may be moved toward and away from the tool members together with the work pieces for shielding the tool members and for dust collecting purposes, and for preventing the tool members from hurting the workers and the other people. One or more guide members are slidably secured on the table. A housing is secured on the guide members. The shield is pivotally secured to the housing for rotating toward and away from the tool members.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 18, 2003
    Inventor: Tian Wang Wang
  • Publication number: 20030014857
    Abstract: A table tool includes one or more tool members disposed in a table, and a shield movably secured on the table. The shield may be moved toward and away from the tool members together with the work pieces for shielding the tool members and for dust collecting purposes, and for preventing the tool members from. hurting the workers and the other people. One or more guide members are slidably secured on the table. A housing is secured on the guide members. The shield is pivotally secured to the housing for rotating toward and away from the tool members.
    Type: Application
    Filed: July 19, 2001
    Publication date: January 23, 2003
    Inventor: Tian Wang Wang
  • Patent number: 6488062
    Abstract: Disclosed is a protective hood for a wood-milling machine to cover a milling spindle which projects vertically out of a horizontal machine table. The protective hood is formed of two side walls connected to one another by a cover and a rear wall, and a front, vertically adjustable protective shield. The protective hood has a connection stub for an extraction device and can be attached adjustably to the machine table. A holding member for the removable attachment of a stop plate is releasably attached to each of the two side walls of the protective hood. In this way, the protective hood is permanently available as a basic element, so that when changing from curved milling to milling against a stop, it is easy to fit the stop plates.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: December 3, 2002
    Inventor: Georg Aigner
  • Patent number: 6481473
    Abstract: An apparatus is adapted for discharging wood shavings that are generated during operation of a wood planing machine. The wood planing machine includes a machine base, a cutter support, a rotary cutter, and a drive unit. The apparatus includes a fan unit and a shavings collecting box. The fan unit includes a fan housing, a fan blade, and a drive shaft. The shavings collecting box has an open top disposed below a discharge hole in the cutter support so as to receive the wood shavings that fall therethrough, a closed bottom, and a lateral wall formed with an outlet port adjacent to the closed bottom. The rotation of the fan blade in the blade chamber causes the wood shavings that fall into the box to be drawn into the blade chamber via the outlet port and an inlet port in the fan housing and to be subsequently discharged through a discharge tube in the fan housing.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: November 19, 2002
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6481475
    Abstract: A wood planing machine includes a support carriage movably mounted on two sides of a mounting frame for supporting a cutting shaft. A motor housing and a shaving collecting member are disposed on the carriage. The collecting member confines a shaving passageway along the cutting shaft, and has an outlet port adjacent to one side. An air conduit is disposed for passage of introduced air into the shaving passageway from the other side to enhance entraining of wood shavings. An air stream deflecting member is disposed to deflect air stream to pass by the outlet port for onward movement to a blower.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: November 19, 2002
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6481474
    Abstract: A wood planing machine includes a rotatable cutting member mounted on an upper end of a machine frame and driven by a first output shaft of a motor which is mounted on a lower end of the machine frame. A shaving collecting member confines a duct with an intake port disposed in the vicinity of the cutting member and an outlet port disposed adjacent to the lower end of the frame. A drive transmission member transmits the driving force of a second output shaft of the motor to a drive shaft of a blowing mechanism to rotate an impeller for drawing wood shavings from the shaving collecting member into the blowing mechanism and out of a discharge port.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: November 19, 2002
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6470930
    Abstract: A storage and dust port device combines a body having a hollow interior and a vacuum port for vacuuming up dust particles and chips with a device for storing tool bits. The dust collection portion and the storage portion may be part of the same body or may be connected together by various means. A lid may also be provided to protect the stored tools from dust. The storage and dust port device may include a means to secure it to the work table so that the device may be used as a guide or fulcrum so as to minimize the kickback of the work piece as a result of the machining operation.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: October 29, 2002
    Inventor: Richard L. Stottmann
  • Patent number: 6470778
    Abstract: An improved dust collector for a power tool is employed. The dust collector includes a main body and a first nozzle portion connected to the main body, wherein the first nozzle portion is disposable on the power tool so that, when the main body receives saw dust, a substantial portion of the saw dust travels through the first nozzle portion. Preferably, the main body has a wide front inlet and a rear portion narrower than the front inlet. The main body may also have top, bottom and side walls connecting the front inlet to the rear portion. The first nozzle portion is preferably connected to the bottom wall. A second nozzle portion may also be connected to the rear portion of the main body.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: October 29, 2002
    Assignee: Black & Decker Inc.
    Inventors: Thomas R. Kaye, Jr., Adan Ayala
  • Publication number: 20020134465
    Abstract: An apparatus is adapted for discharging wood shavings that are generated during operation of a wood planing machine. The wood planing machine includes a machine base, a cutter support, a rotary cutter, and a drive unit. The apparatus includes a fan unit and a shavings collecting box. The fan unit includes a fan housing, a fan blade, and a drive shaft. The shavings collecting box has an open top disposed below a discharge hole in the cutter support so as to receive the wood shavings that fall therethrough, a closed bottom, and a lateral wall formed with an outlet port adjacent to the closed bottom. The rotation of the fan blade in the blade chamber causes the wood shavings that fall into the box to be drawn into the blade chamber via the outlet port and an inlet port in the fan housing and to be subsequently discharged through a discharge tube in the fan housing.
    Type: Application
    Filed: May 2, 2001
    Publication date: September 26, 2002
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6454499
    Abstract: The invention relative to a device for machining workpieces comprising: a chip removing, rotating tool (2) configured substantially as a hollow body including at least one cutter (4), a portion of the tool adjoining the cutter (4) being penetrated by a chip receiving opening (6) for communicating chips into a tool cavity; and an exhaust means including a stationary exhaust housing (10) configured substantially as a hollow body communicating with the cavity (8) at least in part and in connection with at least one exhaust air source; the communicating portion of the exhaust housing (10) comprising in the region of the cutter (4) a chip communicating window (26) porting into an exhaust passage (36) of the exhaust housing (10); and the exhaust passage comprising in an exhaust passage section upstream of the chip communicating window (26), relative to the exhaust direction, at least one auxiliary air infeed opening. The invention relates furthermore to a method for machining workpieces by means of one such device.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: September 24, 2002
    Assignees: Ledermann GmbH, Homag Maschinenbau AG
    Inventors: Hans-Juergen Gittel, Ewald Westfal, Kurt Kalmbach, Wilhelm Kalmbach, Roland Fischer, Michael Oertel
  • Patent number: 6405406
    Abstract: A device is capable of collecting dust and drawing dust and is provided with a machine tool mounted thereon and externally connected with an extension tube. The device comprises a fixation seat for mounting the machine tool which has a first opening, and a second opening; a vacuum cleaner mounted in the interior of the fixation seat; a first window disposed slidably at the first opening of the fixation seat; a second window disposed slidably at the second opening of the fixation seat. By controlling the first window to remain open and the second window to remain close, the vacuum cleaner removes the dust produced by the machine tool. On the contrary, by controlling the first window to remain close and the second window to remain open, the second opening removes dust in other areas via the extension tube.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: June 18, 2002
    Inventor: Peter Chen
  • Patent number: 6382278
    Abstract: A wood planning machine includes a rotatable cutting member mounted to a machine frame and driven by a motor. A drive transmission member transmits the rotating force of the cutting member to a drive shaft to operate a blowing member when the motor is actuated. A shaving collecting member is disposed above and in the vicinity of the cutting member for collecting wood shavings during a wood planing operation. The shaving collecting member is further turnable relative to the machine frame between open and closed positions.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: May 7, 2002
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Publication number: 20020037202
    Abstract: The invention relative to a device for machining workpieces comprising: a chip removing, rotating tool (2) configured substantially as a hollow body including at least one cutter (4), a portion of the tool adjoining the cutter (4) being penetrated by a chip receiving opening (6) for communicating chips into a tool cavity; and an exhaust means including a stationary exhaust housing (10) configured substantially as a hollow body communicating with the cavity (8) at least in part and in connection with at least one exhaust air source; the communicating portion of the exhaust housing (10) comprising in the region of the cutter (4) a chip communicating window (26) porting into an exhaust passage (36) of the exhaust housing (10); and the exhaust passage comprising in an exhaust passage section upstream of the chip communicating window (26), relative to the exhaust direction, at least one auxiliary air infeed opening. The invention relates furthermore to a method for machining workpieces by means of one such device.
    Type: Application
    Filed: September 14, 2001
    Publication date: March 28, 2002
    Inventors: Hans-Juergen Gittel, Ewald Westfal, Kurt Kalmbach, Wilhelm Kalmbach, Roland Fischer, Michael Oertel
  • Patent number: 6360798
    Abstract: Router tables, generally used for woodworking, have fences used to guide workpieces during cutting. The router table has a table top which has a top work surface and a router bit hole through the table top. A plurality of support legs are provided below the table top. A safety shield is positioned above the router bit hole. The workpiece fence has left and right fences which operate independently of each other. The left and right fences slide on the top work surface in a front to rear direction and a side to side direction. A feather flap extends from the workpiece fence and holds the workpiece down against the table top during cutting.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: March 26, 2002
    Assignee: Wolfcraft GmbH
    Inventor: Edmund Apolinski
  • Patent number: 6327761
    Abstract: A machining apparatus has a frame, a conveyor on the frame extending in a workpiece travel direction and adapted to support a flat workpiece, a tool mount displaceable on the frame transversely of the direction, a material-removing tool on the mount for machining the workpiece with generation of particles, and a drive roller engageable with an upper surface of the workpiece upstream of the tool for advancing the workpiece in the direction past the tools. A shield is provided above the conveyor extending transverse to the direction upstream of the tools and downstream of the drive roller. At least one actuator serves for pressing the shield against the workpiece between the tools and the drive roller during machining of the workpiece. Nozzles immediately adjacent the shield are connected to a supply of compressed gas for directing a gas current at the workpiece and blowing particles thereon downstream in the direction.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: December 11, 2001
    Assignee: Peddinghaus Corporation
    Inventor: James M. Magnuson
  • Patent number: 6305449
    Abstract: The present invention facilitates the fabrication of an unlimited variety of dovetail joints without the use of standardized template devices. Additionally, the device is capable of supporting a workpiece on both sides of the router bit cutting edge and adjusting the angular orientation of the guiding fence in relation to the axis of directional translation. The device is comprised of a router table and a slideably coupled positioning apparatus. The router table comprises a tabletop and means for securing a router so that the router's cutting bit extends upwardly through a central orifice. The upper surface of the router table has two longitudinal guide grooves which are parallel to one another and equally spaced on opposite sides of the central orifice. The positioning apparatus is comprised of a guide fence unit with two pivotally secured parallel runners.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: October 23, 2001
    Inventor: David Andrew Stover
  • Patent number: 6293321
    Abstract: A wood planing machine includes a base, a cutter carriage, a motor housing mounted on the cutter carriage and having a vent port, a motor disposed in the motor housing, a rotary cutter mounted on the cutter carriage, a shaft extending from the rotary cutter and driven by the motor, a blower mounted on the cutter carriage and having a fan driven by the shaft, a sawdust-guiding member mounted on the cutter carriage and having a box and a rear spout extending from the box to the rotary cutter to define a sawdust passageway, an air duct in fluid communication with the vent port of the motor housing and the box, a first conduit in fluid communication with the blower housing and the box, a second conduit in fluid communication with the blower housing, and a sawdust collector in fluid communication with the second conduit.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: September 25, 2001
    Inventor: Pei-Lieh Chiang
  • Patent number: 6289956
    Abstract: An improved chip capturing device for a planer comprising a chip director hood attached to a wood planer housing and a tubular shaped chip transporter. A first aperture of generally oval shape is embodied within the chip transporter and positioned on a first end of the transporter while a second aperture of generally oval shape and of greater circumference than the first aperture is embodied and positioned on a second end of the transporter. A third aperture to facilitate the introduction of wood shavings and chips to the tubular shaped chip transporter is positioned generally between the first and second apertures, reflects a generally rectangular shape, and extends downwardly generally perpendicular to the chip capture hood.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 18, 2001
    Inventor: Earl Shriver
  • Patent number: 6237657
    Abstract: A device for cutting a workpiece by means of a rotatingly driven tool bit has a suction hood surrounding the tool bit in annular manner with a through-opening for the tool bit to pass through. The suction hood forms a suction duct open to the tool bit which is limited by an outer wall. At least a part of the outer wall is curved in a perpendicular plane in the form of a parabola, and the focal point of the parabola lies beneath the workpiece engagement surface formed by the suction hood. Because of this parabola shape, chips thrown by the tool bit against the outer wall are reflected essentially parallel to the workpiece engagement surface and thus do not escape up through the through-opening.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: May 29, 2001
    Assignee: Black & Decker Inc.
    Inventor: Yuejun Qian
  • Patent number: 6196775
    Abstract: In an apparatus for extracting chips from slots cut into a substrate, a cutter having a cutting implement is mounted thereon and is adapted to cut slots into the substrate. At least one injector is positioned proximate to the cutting implement, and includes a nozzle having a nozzle tip directed at the slots such that during operation a current of gas is directed into the slots to loosen any substrate chips therefrom which were generated during the cutting operation. A vacuum apparatus is positioned proximate to the cutting apparatus for capturing and removing the substrate chips loosened by the injector.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: March 6, 2001
    Assignee: Gerber Scientific Products, Inc.
    Inventors: Paul D. Aubin, Wolfgang M. Strobel
  • Patent number: RE37247
    Abstract: A router with a cutter head containing the drive motor so that the cutter head is held in a displaceable manner at guide columns which are secured at a base plate which is provided with a central opening for the passage of a cutter inserted in the tool holder of the cutter head, is provided in the base plate with a suction intake channel which surrounds the central opening over at least the larger part of its periphery and to which a suction extraction channel is connected. The suction extraction channel runs inside one of the guide columns which for this purpose has been constructed so that it is hollow.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: June 26, 2001
    Assignee: Black & Decker Inc.
    Inventors: Stefan Blickhan, Achim Buchholz, Karl-Heinz Ruckert, Gustave Sieber