With Scale Or Indicator Patents (Class 83/802)
  • Publication number: 20110005364
    Abstract: A band saw includes a machine base having a shaft hole for a saw blade to pass through, and a worktable having a shaft tube for the saw blade to pass through. By means of the insertion of the shaft tube of the worktable into the shaft hole of the machine base, the worktable is rotatable relative to the saw blade for adjustment of the horizontal rotary angle thereof.
    Type: Application
    Filed: September 10, 2009
    Publication date: January 13, 2011
    Applicant: OAV EQUIPMENT & TOOLS, INC.
    Inventors: Hsuan-Chu Liu, Hung-Chi Chen
  • Publication number: 20100199824
    Abstract: A cutdown machine for cutting various types of window blinds includes a band saw, and may be incorporated with cutters of other types to provide a cutdown center that is easy to use.
    Type: Application
    Filed: March 12, 2010
    Publication date: August 12, 2010
    Inventors: Joseph M. Remmert, Cletis F. Swopes, Steven J. Neumaier
  • Patent number: 7685915
    Abstract: In a band saw, blade drift is corrected and straight line cuffing of an object is easily performed. A cuffing auxiliary device in the band saw used to correct a shift of a cutting line when the cutting line is shifted from a straight line in the band saw for cutting a work by using a flexible steel band. The cutting auxiliary device in the band saw has a laser projector attached to a band saw main body side and projecting a laser beam so as to be overlapped with the shifted cutting line when the work is straightly cut by the flexible steel band on the working board and the cutting line is shifted from the straight line; and a working board fixing portion for fixing the working board to a receiving portion of the band saw main body side in a place which the straight line of the laser beam projected from the laser projector and a mark on the working board are aligned.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: March 30, 2010
    Assignee: Off Corporation Inc.
    Inventors: Shunsuke Watanabe, Masaru Yoshida
  • Patent number: 7594462
    Abstract: Disclosed is a blade tension gauge for a band saw which provides a constant reading of the magnitude of the forces that act to put tension on the blade. The band saw includes a moveable wheel, a blade, and a frame, where movement of the moveable wheel in relation to the frame tensions the blade. The blade tension gauge includes a wheel positioning assembly rigidly connected to the moveable wheel and connected to the frame to be moveable relative to the frame. A load element is positioned to receive a load existing between the wheel positioning assembly and the frame. A sensor is configured to measure the load. A display is configured to display the tension value. Also disclosed is a method for outputting the tension of the blade of a band saw.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: September 29, 2009
    Inventor: Howard L. Snodgrass, Jr.
  • Publication number: 20070221031
    Abstract: In a band saw, it is intended that a so-called blade drift is corrected and straight line cutting of an object is easily performed. Further, an accurate correction is realized by a simple operation. A cutting auxiliary device in the band saw in accordance with the present invention is a device used to correct a shift of a cutting line when the cutting line is shifted from a straight line in the band saw for cutting a work by using a flexible steel band.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 27, 2007
    Inventors: Shunsuke Watanabe, Masaru Yoshida
  • Publication number: 20040163522
    Abstract: A marking device for a table saw includes a laser radiating device mounted to align with a saw blade of the table saw. The laser radiating device emits a light plane aligning with a saw plane of the table saw and marking a light straight line on the top surface of the work piece.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventor: Sung Shan Yin Huang
  • Publication number: 20040069101
    Abstract: A method and apparatus for identifying a place where a saw may be performed. An oscillating laser beam is provided to a target according to a user preference. The user selects at least one characteristic of the oscillating laser beam in order to identify the target in an outdoor environment. The selected at least one characteristic is then provided to a motor which executes the oscillating.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 15, 2004
    Applicant: CEMAR ELECTRO INC.
    Inventors: Walter Spirig, Young Chul Shin
  • Patent number: 6644163
    Abstract: An apparatus for adjusting the worktable of the band sawing comprising a base providing at the band sawing machine. Two turning pieces, each of which has a first guiding slot, a second guiding slot and a rack. The turning pieces fix at the bottom side of the worktable with the base locating between the turning pieces. A guiding shaft pivots at said base via the first guiding slots of the turning pieces. An adjusting shaft pivots at the base. Each end of said adjusting shaft respectively has a gear engaging with the racks of the turning pieces respectively. A pressing shaft pivots at the base via the second guiding slots of the turning pieces, and a locking member engages with the pressing shaft.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 11, 2003
    Assignee: OAV Equipment & Tools, Inc.
    Inventor: Lien-Chu Lee
  • Publication number: 20030126965
    Abstract: A guide bar having fluid conveying channels at the opposed sides. The channel on one side provided by the manufacturer with holes or orifices for dispensing treatment fluid from the channels onto a stump being sawn. The other side provided with markings to guide the operator in making holes or orifices at the time the bar is to be inverted. The markings may be dimples to provide centering of a piercing tool. They may also be provided at the sides of the channel and different marking sets will provide for different sizes of trees being cut.
    Type: Application
    Filed: January 9, 2002
    Publication date: July 10, 2003
    Inventors: Paul Edward Wade, Gabriel Carro
  • Publication number: 20030061928
    Abstract: An apparatus for adjusting the worktable of the band sawing comprising a base providing at the band sawing machine Two turning pieces, each of which has a first guiding slot, a second guiding slot and a rack. The turning pieces fix at the bottom side of the worktable with the base locating between the turning pieces. A guiding shaft pivots at said base via the first guiding slots of the turning pieces. An adjusting shaft pivots at the base. Each end of said adjusting shaft respectively has a gear engaging with the racks of the turning pieces respectively. A pressing shaft pivots at the base via the second guiding slots of the turning pieces, and a locking member engages with the pressing shaft.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 3, 2003
    Applicant: OAV EQUIPMENT & TOOLS, INC.
    Inventor: Lien-Chu Lee
  • Patent number: 5305673
    Abstract: A dual blade band saw cutting machine which allows two individuals to work on two different objects at two separate work stations within the same machine. Through the utilization of a single variable speed motor and two overlapping triangular rotational patterns, two safe and independent work stations with large working areas, each having its own cutting band, are provided. Additional features of the cutting machine include assemblies for adjusting the tension of the cutting bands, an assembly for varying the speed of the motor, and a display for informing the individuals operating the cutting machine of the rotational speed of the cutting bands in blade feet per minute.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: April 26, 1994
    Inventor: Donald E. Costley
  • Patent number: 4624167
    Abstract: A mechanical, infinitely variable blade speed drive for a band saw is provided with a speed control which includes a variable pitch drive pulley with axially adjustable sheave spacing to vary the drive ratio between the drive pulley and the driven pulley and a control shaft parallel to the drive shaft of the motor which carries the drive pulley. The control shaft extends to the front portion of the band saw so that the speed adjustment control carried thereon is readily accessible to the band saw operator without moving away from the front portion of the band saw during its operation.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: November 25, 1986
    Assignee: Armstrong-Blum Mfg. Co.
    Inventor: Joseph M. Stefanic
  • Patent number: 4557168
    Abstract: A method for detecting the cutting resistance of a workpiece to a bandsaw blade comprises the steps of: magnifying movement of the bandsaw blade by a magnifying device in a direction normal to a running direction of the bandsaw blade; detecting the movement of the bandsaw blade by a sensor in the direction normal to the running direction of the bandsaw blade; and adjusting a force exerted by a feed speed of the bandsaw blade during a cutting operation in immediate response to momentary changes in the cutting resistance of the workpiece to the bandsaw blade. An apparatus for carrying out the method is also disclosed.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: December 10, 1985
    Assignee: Amada Company, Limited
    Inventor: Toru Tokiwa
  • Patent number: 4353399
    Abstract: A semi-portable tool for use with portable saws, routers and other power tools including a stand for holding the piece to be worked and a separate power equipment holder on a separate stand attached to the first stand. A carriage on the holder for the power equipment provides for different positioning of and for movement of the power equipment so that a number of different operations can be performed.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: October 12, 1982
    Assignees: Richard L. Harris, Ralph W. Blader
    Inventor: Richard L. Harris
  • Patent number: 4336731
    Abstract: A band sawing machine has an endless saw blade entrained over two saw pulleys and two blade guides. Lateral displacements of the saw blade from a preset position occurring during a sawing operation are measured by a position sensor. The position sensor controls an actuator which applies a corrective twist or lateral movement to at least one of the blade guides to return the blade to the present position.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: June 29, 1982
    Assignee: Kockums Industri AB
    Inventor: Urban Eklund
  • Patent number: 4283980
    Abstract: Apparatus for sawing which can be used either in portable, manually operated form, or as a stationary bench-mounted sawing device for sawing through a workpiece along predetermined angles of cut. The apparatus comprises a portable chain saw which includes a prime mover secured to one side of a flat mounting plate. A saw blade guide plate projects from the prime mover through a slot provided in the mounting plate, and in a plane substantially normal to the plane of the mounting plate. A saw blade is extended around, and guided by, the guide plate, and is protected by guard means pivotally mounted on the mounting plate. A cradle frame structure releasably receives and clamps the mounting plate in a table sawing position when the chain saw is to be so used. A cradle frame pedestal pivotally supports the cradle frame structure for pivotation about a horizontal axis.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: August 18, 1981
    Inventor: Edward L. Jackson
  • Patent number: 4244253
    Abstract: An attachment for cutting machine tools, such as band saws, spindle-shapers, sanders and the like, controlling the feed path of the workpiece to the cutting tool to form desired workpiece contours, such as circles, arcs and the like, has a grooved track bar easily locked on and removed from the machine bed or table carrying a slide in the groove which has a workpiece centering pivot pin projecting therefrom. A workpiece is either directly pivoted on the pin or secured to a templet pivoted on the pin and is rotated about its pivot support against the cutting tool. The slide may be locked in the groove at a selected distance from the tool, may be pushed against a stop at a selected position in the groove or may be shifted by a cam to control the feed path of the workpiece for forming desired contours. Circles of selected diameters, elipses of selected minor and major radii, heart shapes, four leaf clover shapes and the like are easily developed.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: January 13, 1981
    Assignee: Houdaille Industries, Inc.
    Inventor: Richard J. Flanigan
  • Patent number: 4127046
    Abstract: Apparatus for sawing which can be used either in portable, manually operated form, or as a stationary bench-mounted sawing device for sawing through a workpiece along predetermined angles of cut. The apparatus comprises a portable chain saw which includes a prime mover secured to one side of a flat mounting plate. A saw blade guide plate projects from the prime mover through a slot provided in the mounting plate, and in a plane substantially normal to the plane of the mounting plate. A saw blade is extended around, and guided by, the guide plate, and is protected by guard means pivotally mounted on the mounting plate. A cradle frame structure releasably receives and clamps the mounting plate in a table sawing position when the chain saw is to be so used. A cradle frame pedestal pivotally supports the cradle frame structure for pivotation about a horizontal axis.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: November 28, 1978
    Inventor: Edward L. Jackson
  • Patent number: 4027566
    Abstract: A horizontal base including a plurality of side by side horizontally spaced apart parallel guides is provided and a follower is selectively removably engageable with any one of the guides for guided movement therealong. A workpiece support is rotatably supported from the follower for angular displacement about an upstanding axis substantially normal to the plane containing the guides and the base is stationarily positionable on the horizontal table of a band saw or jig saw and a workpiece to have a constant radius arcuate cut made therein may be supported from the workpiece support and angularly displaced therewith in order that the blade of the saw may make the desired arcuate cut. The spacing of the parallel guide with which the follower is guidingly engaged from the blade of the saw determines the radius of curvature of the arcuate cut to be made.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: June 7, 1977
    Inventor: Thomas D. Harrill