Base-supported Patents (Class 30/273)
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Patent number: 11305900Abstract: A banding machine includes a tube guide adapted to transfer an elastomeric tube from an entry end to an exit end. A frame assembly receives the elastomeric tube from the exit end. A drive assembly is carried by the frame assembly and includes a drive shaft which rotates a drive wheel that advances the elastomeric tube through the frame assembly. A knife guide assembly receives a reciprocating knife to cut the elastomeric tube to form a band. A stretcher assembly with stretcher fingers maintained substantially adjacent one another in a first position receives the band, the stretcher fingers then expand the band to a second position to receive an object upon which the band closes around.Type: GrantFiled: April 5, 2019Date of Patent: April 19, 2022Assignees: Alliance Rubber Company, JMM-585, LLCInventors: Joseph C. Jackson, Gary W. Castleberry, Jordan W. Steinhaus, Brandon R. Hughes, James R. Maynard, Joseph M. Maynard, Zachary D. Zelenka, Cory N. Hatcher
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Patent number: 9937570Abstract: A cutting machine includes a cutting element for cutting material, a motor for driving the cutting element to rotate and a housing for containing the motor. The motor includes a rotor sleeve being formed with a receiving chamber, a motor shaft being capable of rotating together with the rotor sleeve, a stator core at least partially contained in the receiving chamber, stator coils wound around the stator core, and a stator bracket for fixing the stator core. The stator core is formed with a through hole for the motor shaft to pass there through, the stator coils are located outside the through hole and, the motor shaft is capable of rotating relative to the stator core.Type: GrantFiled: June 23, 2016Date of Patent: April 10, 2018Assignee: Chervon (HK) LimitedInventors: Shibo Chen, Xiangqing Fu, Hongwei Wang
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Patent number: 9266249Abstract: A wood cutting machine including a central track mounted on a quartet of end legs and a pair of height-adjustable center legs. Cross supports are attached to the central track. A frame, mounted on a pair of tracks disposed on the central track, includes a pair of saw blades mounted on a blade shaft axially attached to the frame via a pair of mounts. A motor housing is in operational communication with the frame and includes an internal motor, which is in operational communication with the blade shaft via a pair of pulleys and an attached belt. A pair of rollers, in operational communication with the frame, secure and stabilize a board placed on the central track, for cutting. The blades rotate and cut the wood as the frame is moved forward over the board.Type: GrantFiled: June 9, 2014Date of Patent: February 23, 2016Inventor: Harvey E. Moore
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Publication number: 20140366386Abstract: A power cutting tool for automatically cutting out a vent opening in a substrate such as a floor and the like according to a prescribed pattern is disclosed. The power cutting tool includes a base assembly adapted for support on a surface of said substrate. A track assembly having a track is carried by the base assembly for automatically guiding the movement of the cutting tool. A power cutting tool includes a cutting blade which penetrates the substrate to cut out the vent opening. A drive assembly includes a first drive for operating the cutting blade, and a second drive engaging the track for automatically moving the power cutting tool along the track while simultaneously operating the cutting blade to cut out the vent opening pattern in the substrate.Type: ApplicationFiled: June 6, 2014Publication date: December 18, 2014Inventor: Timothy J. Brisson
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Publication number: 20130333228Abstract: In a portable cutting tool configured to perform a cutting operation through movement along the upper surface of a workpiece, when an ordinary inner rotor type motor is used as the drive source, the motor is rotated at high speed to obtain a high output, which is reduced in speed by a speed reduction device to thereby secure an appropriate rotational speed for a rotary cutter. Since the electric motor is rotated at high speed in this construction, there have been problems of noise, vibration, etc. The present invention aims to achieve a reduction in the noise and vibration of the cutting tool.Type: ApplicationFiled: February 17, 2012Publication date: December 19, 2013Applicant: MAKITA CORPORATIONInventors: Kenichi Ota, Toru Fukuoka
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Publication number: 20130074347Abstract: An attachment portion of a battery pack serving as a power supply is formed on a rear end of a motor housing of a rechargeable plate joiner, and the battery pack is slid and attached to the attachment portion of the horizontally disposed motor housing from above. In this state, a center of gravity position of the battery pack is positioned on an axis line of an output shaft of a motor.Type: ApplicationFiled: August 23, 2012Publication date: March 28, 2013Applicant: MAKITA CORPORATIONInventors: Kenji ABE, Sho KUME
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Publication number: 20120240416Abstract: In a handheld cutting machine that is constructed such that a user holds the machine by hand and performs cutting processing while moving the same, in which a lower portion of a circular cutting blade protruded from a lower surface side of a base that is placed on a cutting object is covered by a movable cover, an enough clearance is set between a supporting annular ring of a movable cover and a rotating boss portion of a bearing box in order to smoothly open and close the movable cover while a ring spring is interposed between the supporting annular portion and an axial restricting portion to increase dust-proofness of the a movable cover support portion.Type: ApplicationFiled: November 8, 2010Publication date: September 27, 2012Applicant: MAKITA CORPORATIONInventor: Michio Okumura
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Publication number: 20110214302Abstract: A cutting tool includes a tool unit having an electric motor and a rotary cutting blade rotatably driven by the electric motor. The electric motor has a motor housing. The motor housing has a flattened cylindrical configuration, so that a horizontal length of the motor housing is shorter than a vertical length of the motor housing.Type: ApplicationFiled: March 2, 2011Publication date: September 8, 2011Applicant: MAKITA CORPORATIONInventor: Hirotomo INAYOSHI
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Patent number: 7562457Abstract: An improvement for a reciprocal saw is disclosed, the saw being of the type having an oscillating drive shaft and a counter weight that oscillates in opposing phase to the drive shaft for the purpose of reducing vibration. The improvement comprises a lateral extension arm fixed to the counter weight and projecting generally towards the drive shaft. The extension arm is connected to a mounting plate that projects generally parallel to the drive shaft towards the distal end of the drive shaft, such that when the saw is activated the drive shaft oscillates oppositely, but in parallel, to the mounting plate. A mounting cover is fixed to the mounting plate with a fastener and includes a channel therein formed generally longitudinally parallel to the drive shaft and adapted to capture both a first saw blade slidably therein and a second saw blade fixedly therein.Type: GrantFiled: November 7, 2006Date of Patent: July 21, 2009Assignee: Acu-Cutter Corp.Inventor: Rodolfo D. Prieto
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Publication number: 20090119922Abstract: The submission is an electrically powered, self-operated, hands-free, fingernail clipper for persons having neither the strength nor the flexibility to use a conventional leaf-spring type nail clipper. The unit is mounted in a PVC housing, with an aluminum cover, and consists of an electric, 3 RPM Hi-Torque motor, mounted on the side of a chassis strut, with a direct shaft drive to a Tri-Lobe cam that depresses the activating lever of a pair of conventional, leaf-spring type nail clippers. The motor is activated by a rocker switch, applying power through a cable plugged into normal house current (115-120V).Type: ApplicationFiled: September 30, 2008Publication date: May 14, 2009Inventors: Sean Patrick Doyle, James Joseph Doyle
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Publication number: 20090106985Abstract: A hand-held implement for trimming mounted photographs, posters, and other laminates includes a handle, an edge guide connected to the handle defining a side surface for traveling against the peripheral edge of the substrate, and an upper guide connected to the handle defining a lower surface for traveling against the exposed front surface of the laminate. A blade, mounted on the upper guide, has a cutting edge extending below the lower surface of the upper guide and immediately adjacent the side surface of the first guide. When the side surface is stabilized against the peripheral edge of the substrate and pushed forward, the blade produces an edge perfectly matched to the edge of the laminate and an aesthetically pleasing appearance.Type: ApplicationFiled: October 27, 2008Publication date: April 30, 2009Inventor: Lamoyne W. Durham
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Publication number: 20080216327Abstract: A cutting tool for flexible line, the cutting tool being attached to the package for the flexible line, comprises a base member having a groove adapted to receive the flexible line when the cutting tool is in use and a blade recessed within the groove, the blade being adapted to cut the flexible line when the line is forced into the blade during use of the cutting tool. The cutting tool further includes an arm member in operative relationship with and complementary to the base member, which arm member is capable of producing and applying mechanical advantage in a manner that forces the flexible line received within the groove against the blade to thereby sever the flexible line.Type: ApplicationFiled: March 7, 2007Publication date: September 11, 2008Inventors: JOHN DEAN YARBOROUGH, David B. Skinner
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Publication number: 20080134857Abstract: A cutting head including a carriage has a cutting blade assembly fixed relative to the carriage for movement between an upper position and a lower position. The cutting blade assembly includes a cutting blade for cutting a sheet material. In one embodiment, the cutting blade assembly is pivotally fixed to the carriage. In another embodiment, a first motor is operatively connected to the cutting blade assembly to move the cutting blade assembly between the upper position and the lower position and a second motor is operatively connected to the cutting blade to move the cutting blade between an extended position and a retracted position.Type: ApplicationFiled: December 8, 2006Publication date: June 12, 2008Inventor: William A. Roach
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Patent number: 6814157Abstract: A handpiece for a rotary tool including a flexible power shaft configured for connection at one end to the rotary tool, and at the other end to the handpiece, with at least one locking formation affixed to the shaft. The handpiece includes a housing having a first end for receiving the shaft, and a second end configured for accommodating a working attachment, the housing defining a central throughbore for rotatably receiving the shaft. At least one locking actuator is disposed in the housing for releasable engagement with the locking formation, the handpiece being provided with a biasing force for biasing the actuator out of engagement with the locking formation, so that a user-applied force on the actuator overcomes the biasing force to enable locking engagement between the actuator and the locking formation. A working end of the handpiece housing has an endcap and is also configured for receiving supplemental attachments.Type: GrantFiled: February 21, 2002Date of Patent: November 9, 2004Assignee: Credo Technology CorporationInventor: Verica Maras
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Patent number: 5845719Abstract: An elongated rod is journalled in a housing to reciprocate substantially vertical therefrom and has a cutting blade fixed on the tip of the lower end of the rod. A rotary motor is located at the upper end of the housing and is provided with an eccentric cam for converting the rotary motion into linear reciprocating motion.Type: GrantFiled: April 19, 1997Date of Patent: December 8, 1998Assignee: Kioritz CorporationInventors: Isao Matsumoto, Masao Ohkanda
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Patent number: 5450672Abstract: A flexible material wall trimming tool (10) cuts flexible material (32) such as flexible flooring material and flexible wall cove material at the intersection of a floor (34) and a wall (35). An elongate low profile block body (12) is formed with a bevel angle pusher surface (15) at the back end (14) of the block body (12) for pushing the wall trimming tool in the elongate cutting direction (18) using the palm of a hand. The bevel angle pusher surface (15) delivers force components downward against the floor (34) and sideways against the wall (35) for accurate cutting. A blade slot (20) is formed on the cutting side (28) of the block body (12) near the back end (14). The blade slot (20) is also formed at a compound angle. A blade holder (24) rigidly clamps a blade (22) in the blade slot (20) at the compound angle. A tool angle trim adjuster (42) is slidably received in a tool angle trim slot (40) on the opposite side (38) of the block body (12) from the cutting side (28).Type: GrantFiled: April 6, 1994Date of Patent: September 19, 1995Inventor: Conrad Fortin
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Patent number: 5415725Abstract: Apparatus for removing glued-down carpet and it has a frame having a pair of laterally spaced side walls connected together by a plurality of cross members. A motor that is connected to a gear box is mounted on one of the cross members. The frame is mounted on a pair of rear wheels. A pair of drive rollers, have their opposite ends journaled in said respective side walls. A pressure roller extends between the side walls and it is spaced a predetermined vertical distance below said drive rollers. The pressure roller is journaled between a pair of leverage arms that are pivotally mounted on said side walls. A handle is connected to the top end of said leverage arms. A tab portion of glued-down carpet to be removed is threaded over the pressure roller and under the drive rollers. A downward pressure on the handle causes the leverage arms to pivot the pressure roller upwardly toward the drive rollers.Type: GrantFiled: July 1, 1994Date of Patent: May 16, 1995Inventor: Gary Scharf
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Patent number: 5274923Abstract: A cutting apparatus comprising a cutting blade arranged along a pole pendent from a motor portion, a press rod having a cloth press attached to the lower end thereof, which is vertically movably arranged at a front part of the cutting blade, and a brake disposed to confront the press rod for controlling the vertical movement of the press rod, wherein a guard covering the cutting blade is attached to the press rod, a handle is provided with a lever to be actuated when the handle is gripped, a switch of the motor portion to be actuated by the operation of the lever is connected to open and close the brake, and a power source is separately arranged.Type: GrantFiled: May 29, 1992Date of Patent: January 4, 1994Assignee: KM Cloth Cutting Machine Co., Ltd.Inventors: Andre Vassallucci, Osamu Saito
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Patent number: 5035059Abstract: A hand-held scroll saw having a blade includes a body having a handle provided at the upper portion of the body, a foot plate provided at the lower portion of the body so as to be slid on a workpiece which is to be cut by the saw, a piston provided over the front portion of the plate so as to be moved upwardly and downwardly, and a motor provided between the handle and the plate so as to move the piston up and down. A hung member is removably secured to the sawing blade at the upper end thereof, and a hanger is secured to the piston at the lower end thereof and engaged with the hung member. A U-shaped arm having an upper portion secured to the body and a lower portion located near the lower end of the blade so that the arm does not interfere with the workpiece. A pulled-down member is removably secured to the blade at the lower end thereof, and a pulling-down member is engaged with the pulled-down member.Type: GrantFiled: July 26, 1990Date of Patent: July 30, 1991Assignee: Ryobi Ltd.Inventors: Shoji Takahashi, Kouichi Miyamoto
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Patent number: 5009012Abstract: A saber saw comprises an elongated displacing rod which supports a saw blade and is reciprocable in a displacement direction extending along its elongation and also swingable in a swinging direction which is transverse to the displacement direction, and a unit for moving the displacement rod in the swinging direction and including a driveable control element having a cam surface and a sensing element which is connected with the displacement rod and is controlled by the control element, the control element being rotatable about an axis of rotation, the cam surface of the control element being formed as a symmetrical conical surface which is eccentrical relative to the axis of rotation of the control element.Type: GrantFiled: September 1, 1989Date of Patent: April 23, 1991Assignee: Robert Bosch Power Tool CorporationInventors: David M. Martinez, Gordon C. Campbell
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Patent number: 4884344Abstract: A saber saw comprises an elongated displacing rod which supports a saw blade and is reciprocable in a displacement direction extending along its elongation and also swingable in a swinging direction which is transverse to the displacement direction, and a unit for moving the displacement rod in the swinging direction and including a driveable control element having a cam surface and a sensing element which is connected with the displacement rod and is controlled by the control element, the control element being rotatable about an axis of rotation, the cam surface of the control element being formed as a symmetrical conical surface which is eccentrical relative to the axis of rotation of the control element.Type: GrantFiled: August 29, 1988Date of Patent: December 5, 1989Assignee: Robert Bosch Power Tool CorporationInventors: David M. Martinez, Gordon C. Campbell
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Patent number: 4854207Abstract: Disclosed is a power driven circular saw blade and a guide assembly for such blade where the guide assembly includes a pair of guide units mounted respectively one of each of opposite side of the blade. Each guide unit includes a guide housing with a guide block reciprocally mounted therein and having a saw blade engaging portion. A stop limits movement of the guide block at least in a direction of movement toward the blade so that the guide block is normally in non-engagement with the saw blade while the latter is in a smooth substantially vibration free running condition. The guide block is resiliently biasing against such stop preferably by pneumatic pressure. A guide assembly as described is preferably located at the outfeed side of the blade but there may be an assembly at both the infeed and outfeed sides of the blade. The position of the stop if preferably adjustable.Type: GrantFiled: January 13, 1988Date of Patent: August 8, 1989Assignee: Forintek Canada Corp.Inventors: Eberhard Kirbach, David A. Sykes
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Patent number: 4669190Abstract: A portable motor-driven cutter for cutting off a sheet material includes an eccentric shaft rotatably supported by a gear case and a gear cover, an L-shaped driver arm having an upper end rotatably fitted over an eccentric portion of the eccentric shaft, a cutting blade detachably mounted on the lower end of the driver arm, and a scribing blade detachably mounted on a base on which the gear case is mounted. When the eccentric shaft is rotated by a motor, the cutting blade is moved in an eccentric pattern to cut off a sheet material along a straight line scribed by the scribing blade. The cutting blade and the scribing blade are produced from a single break-off disposable cutter blade.Type: GrantFiled: June 6, 1986Date of Patent: June 2, 1987Assignee: Hitachi Koki Company, Ltd.Inventors: Tatsuo Innami, Katuo Koizumi, Toshiaki Imahashi, Kihachiro Matsumoto
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Patent number: 4662069Abstract: A tool having parallel cutting blades for cutting matching seam edges from two pieces of material, such as two pieces of carpet. The tool is comprised of an insulative housing having a pair of rotatable cutting blades disposed on opposite sides thereof in substantially parallel relationship; an adjustable guide mechanism disposed adjacent to each of the cutting blades for holding the material to be cut in proper alignment with the cutting blades; and a base member on which the housing is mounted. An electric motor is disposed inside the housing for rotating the cutting blades via a worm gear mechanism. The guide mechanism preferably includes a spring-mounted shaft, which is adjustable in a vertical direction to provide the proper spacing between upper and lower members of the guide mechanism, in accordance with the thickness of the material to be cut.Type: GrantFiled: September 3, 1985Date of Patent: May 5, 1987Assignee: Jim F. PateInventors: Jim F. Pate, Richard D. Guthrie
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Patent number: 4617737Abstract: A machine for cutting out flat material comprising a support for the flat material, a carriage guided for displacement along the support by at least one guide rail, the carriage bearing a beam extending above the support and pivotable, in relation to the carriage, about an at least approximately vertical, first pivot axis, this beam having at least two arms interconnected by a joint having a second pivot axis parallel to the first pivot axis and the outer arm of said two arms bearing a cutting mechanism pivotable, in relation to the outer beam arm, about a third pivot axis parallel to the first pivot axis and a foot of the cutting mechanism being in contact with the support during operation. In order to simplify the construction of the beam but still ensure that the cutting mechanism always rests perpendicularly on the support, this cutting mechanism is adapted to swivel, in relation to the support, about a tilt axis parallel to the support and rests with its foot on this support.Type: GrantFiled: March 29, 1985Date of Patent: October 21, 1986Assignee: Krauss u. Reichert GmbH & Co. KGInventor: Rolf Jung
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Patent number: 4574673Abstract: A stiffened elongated cutting blade for use in a cutting apparatus of the type employing an elongated cantilevered cutting blade for cutting layups of fabric or other similar sheet material, and reciprocated along its longitudinal axis when actively cutting. The blade is a compound part made up of an inexpensive, reversible and replaceable edge member insert which provides the cutting edge and an associated holder supporting the insert for substantially its entire length along its rear edge and serving to reduce lateral and rearward deflections. The insert is held in the holder by a mechanical interfit between the insert and holder at its lower end and in mechanical engagement with the holder at its upper end and is easily releasable from the holder to allow its reversibility and replacement after the cutting edge has dulled or worn beyond a desireable point.Type: GrantFiled: March 25, 1985Date of Patent: March 11, 1986Inventor: David R. Pearl
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Patent number: 4557051Abstract: The invention relates to a cutting machine, in particular a fabric cutting machine, comprising a bearing table for the material and a supporting structure, which is displaceable along the table, for a cutting tool rotatable about a vertical axis and comprising drive means for driving the cutting tool relative to the table. In the case of a cutting machine of this type the invention has a first angular position detector associated with the cutting tool, this first angular position detector generating signals corresponding to the angular position of the cutting tool. In addition, a guide handle is provided on the cutting tool, this handle having associated signal generating means for producing additional control signals such that, on the basis of the signals from the first angular position detector and the additional signal generating means, control signals may be generated for the drive means of the cutting tool, which enable the cutting procedure to be servo-assisted when the cutting tool is guided by hand.Type: GrantFiled: October 27, 1983Date of Patent: December 10, 1985Assignee: Krauss u. Reichert GmbH & Co. KGInventor: Rolf Jung
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Patent number: 4546546Abstract: A cutter frame or base of substantially C-shaped configuration is rotatable about a substantially vertical axis and carries an oscillating cutter element. The cutting edge of the cutter element can be guided between the base fabric and the appliqued flat goods along a seam or the like by means of rotating handgrips.Type: GrantFiled: March 5, 1984Date of Patent: October 15, 1985Assignee: Perfekta Maschinenbau Ferdinand Kleger AGInventors: Ferdinand Kleger, Hans Zeller
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Patent number: 4545275Abstract: An elongated blade has a notch in its leading edge, with parallel chisel edges adapted to chop through the oriented fibers (boron or graphite) of uncured sheet material as the blade is reciprocated vertically at a high frequency relative to its forward velocity (five cycles per blade width). The notch is about half as deep as the blade width and has a vertical extent (between the chisel edges) of about 60 percent of the blade's vertical stroke. The blade has a lower edge which forms a 135 degree angle with it's leading edge, and which lower edge is spaced below the lower notch chisel edge by approximately the width of the blade.Type: GrantFiled: February 7, 1983Date of Patent: October 8, 1985Assignee: Gerber Garment Technology, Inc.Inventor: David R. Pearl
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Patent number: 4403416Abstract: A cloth-cutting machine designed to cut pieces of cloth on a working table by a cutting mechanism provided with an automatic cutter and capable of achieving effective cutting operation in any place on the working table without exerting any unbalanced load on the working table and also capable of effectively absorbing any vibration caused at the time of cutting operation.Type: GrantFiled: May 27, 1981Date of Patent: September 13, 1983Assignee: N.C.A. Co., Ltd.Inventor: Shoichi Adachi
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Patent number: 4366620Abstract: A machine for cutting standing seams which connect roof panels together includes a cutter wheel located adjacent a platen wheel. The cutter wheel is movable and is moved toward the platen wheel by a jack-screw mechanism mounted on the frame of the machine.Type: GrantFiled: February 23, 1981Date of Patent: January 4, 1983Assignee: Butler Manufacturing CompanyInventor: Richard R. McClure
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Patent number: 4343088Abstract: A precision trimming device (18), which is provided for removing metal areas (12a) between contact pads (12) of a printed circuit board (10), includes a rotary drive motor (20) mounted for lateral and pivotal movement on a frame (22). The drive motor (20) supports a circular saw blade (24) which normally rests in a non-trimming position adjacent to the surface of the board (10). The saw blade (24) pivots into metal removing engagement with the board (10) by the action of a cam follower (50) on a camming bar (34). The frame (22) includes locator brackets (80, 82, 84 and 92) having pins (88) which are extendable into apertures (14) of the board (10) to facilitate locating the saw blade (24) for subsequent metal trimming.Type: GrantFiled: June 30, 1980Date of Patent: August 10, 1982Assignee: Western Electric Co., Inc.Inventors: Dewey R. Farley, Vernon K. Holden
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Patent number: 4334356Abstract: An anti-mar base is provided for a saber- or bayonet-type saw. The anti-mar base is provided with spring clips to detachably affix the same to the corresponding base of the saw in order to prevent the marring of objects to be cut. The anti-mar base is made of a smooth material in the form of a sled-like member having two runners separated by a groove into which a key-like opening opens. The key-like opening is formed of a circular opening to which is connected a slot. The spring clips extend from two metal strips which traverse the sled-like member extending through the body thereof and exposed in the aforementioned groove. The spring clips are of S-shape and permit the ready removal of the anti-mar base from the saw base.Type: GrantFiled: July 14, 1980Date of Patent: June 15, 1982Inventor: Peter Krosunger
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Patent number: 4277890Abstract: An oscillating knife in a textile cutting machine is inclined to cut multiple plies of material generally substantially 90 degrees to each ply by inclining the cutting machine or a knife blade.Type: GrantFiled: December 3, 1979Date of Patent: July 14, 1981Inventor: Lawrence A. Portnoff
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Patent number: 4131996Abstract: A blade having a chisel point at one end and a cutting point intermediate its ends is mounted in the blade holder of a sabre saw. As the sabre saw is moved along the wallboard to be cut, the chisel point on each stroke moves through the gypsum core, its rearwardly inclined end forcing the gypsum back into the kerf. The chisel point need only fracture the paper on the rough side of the wallboard, although it may pass completely therethrough. The cutting point severs the paper on the finished side of the wallboard.Type: GrantFiled: June 27, 1977Date of Patent: January 2, 1979Inventor: William R. Janke
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Patent number: 4114270Abstract: A butcher's meat saw has a housing from which extends a flat guide plate having an edge along which is slidable a blade reciprocated by an eccentric-type drive mechanism within the housing. Either the edge of the guide or the edge of the blade is formed with a groove and the other edge fits in this groove. One of these edges is furthermore formed with laterally opened notches so as to facilitate cleaning of the saw.Type: GrantFiled: June 24, 1977Date of Patent: September 19, 1978Assignee: Schmid & WezelInventors: Rottger Jansen-Herfeld, Stefan Elmer
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Patent number: 4107839Abstract: A manually guided cutting machine for cutting stacked layers of cloth and the like which includes a frame having a downwardly extending column with a foot plate of flat extensive construction for supporting the machine on a cutting table as the machine is manually guided. A reciprocated knife blade at the front edge of the column, driven by an air motor on the frame, cuts into the material supported upon the foot plate. Exhaust air from the motor is conducted to a centrally located confined recess under the foot plate free of any communication with the top of the plate so that the foot plate floats on a cushion of air and with the noise of the exhaust air being muffled by the foot plate and the overlying material.Type: GrantFiled: May 6, 1977Date of Patent: August 22, 1978Assignee: Krauss u. Reichert GmbH & Co. KG SpezialmaschinenfabrikInventor: Rolf Jung
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Patent number: 4092777Abstract: A cutting-out machine for flat material such as cloth has a slit blade cutting mechanism mounted on one end of a double-arm beam. The beam arms are pivotally connected to one another about a vertical axis. The cutting mechanism is pivotally connected to one end of the beam, preferably in an adjustable spring-loaded mount. The pivot axis is vertical and aligned with the cutting edge of the slit blade. The other end of the beam is pivotally connected, also along a vertical axis, to a carriage that rides on guide tracks extending along a longitudinal edge of a support table for the material. The carriage is preferably driven by an electric motor under the control of a switch located on the cutting mechanism. The beams arms are substantially equal to the width of the support table when the beam is fully extended.Type: GrantFiled: March 10, 1977Date of Patent: June 6, 1978Assignee: Krauss u. Reichert GmbH & Co. KG SpezialmaschinenfabrikInventor: Rolf Jung
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Patent number: 4024633Abstract: A simplified safety guard for a cloth cutting machine of the vertically oriented circular blade type. The simplified guard includes a fixed section mounted to the machine that permanently guards substantially three-quarters of the blade's periphery, and a movable section pivotally mounted to the fixed section that guards the remainder of the blade's periphery when the blade is not engaged in a cutting operation with a cloth stack. The movable section is pivotally mounted to the fixed section in the 12 o'clock to 3 o'clock quadrant of the blade relative to the machine's right-to-left direction of travel. The movable section is fabricated of a transparent material to permit viewing of the cutting pattern on the cloth stack, is provided with a U-shaped nose adapted to embrace the edge of the blade, and includes a thumb lip disposed adjacent the machine's handle for opening the movable section as desired by the operator, preparatory to cutting the cloth stack, all in a one-piece structural member.Type: GrantFiled: November 28, 1975Date of Patent: May 24, 1977Assignee: The Wolf Machine CompanyInventor: Robert G. Stucker
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Patent number: 3994065Abstract: A reciprocating saw for cutting foam rubber having a blade with a pattern of no-set teeth interrupted at intervals by toothless arcuate grooves, and a guide member having a slotted, elongated, wedge-shaped section enclosing the portion of the blade rearward of the blade cutting section, and a base section connected to the slotted section for confining the material to be cut above the base and in the cutting region of the blade during the cutting operation.Type: GrantFiled: February 26, 1976Date of Patent: November 30, 1976Inventor: Lyle G. Plum