Class 451/374 - Rotary cutter

Subclass of Class 451 - Abrading
Definition: Clamping edge tool holder especially adapted to hold an
No. of patents: 39
Last issue date: 02/12/2008

Number	Title	Issue Date
7329173	Tool grinding machine A grinding machine, which includes a grinding wheel rotatable by a motor, a first slide movable in X-axis direction, a second slide supported on the first slide and movable in Y-direction, a bracket supported on the second slide and turnable about Y-axis, a tool hol...	02/12/2008
7281307	Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t...	10/16/2007
7040209	Tool fixtures for use in rotational processing A fixture for holding tools to be processed in a rotational processing apparatus. The fixture includes at least one mounting rod with a plurality of spacers slidably disposed on the mounting rod. A plurality of tools are disposed about the rod, each tool being space...	05/09/2006
6907809	Positioning device for saw blades A saw blade positioning device has two drive mechanisms and two guidance devices, which are preferably oriented at right angles in respect to each other. If a first guidance device is oriented in the radial direction of the circular saw blade by the linear guides, a...	06/21/2005
5921847	Grinding fixture and method of remanufacturing tool inserts A swing grinding fixture and process for using the same is disclosed that enables a conventional surface grinder to remanufacture a machine tool cutting insert by grinding a predetermined shape into the insert. A quick clamping insert holder coupled to a ...	07/13/1999
5620363	Powered grinding tool A powered grinding tool (10) comprising a casing (16) in which is an electric motor (40) which drives a shaft (39) on which is carried a grinding wheel (20) at a work station. The tool casing has undercut slots (24) at opposite sides of its front face for...	04/15/1997
5518439	Process and apparatus for the finish grinding of cutting tools of a granulating device A process and apparatus for the finish grinding of cutting blades of a cutting tool head of a granulating device for thermoplastic material in which a grinding wheel is supported for rotation about a vertical axis with a grinding surface of the grinding w...	05/21/1996
5222330	Fixture for holding circular cutting tool during its sharpening The disclosed fixture has a main clamping piece defining several differently sized smooth bores, the locations and sizes of which are selected to receive and hold different central mounting mechanisms of incompatible cutting tools, with the intended cutti...	06/29/1993
5142947	Adjustable motor-operated circular saw sharpener A circular saw sharpener comprising a base mounted on a work table at the top, a bracket pivoted thereto at the top which bracket has a L-shaped frame pivoted thereto at the top for holding a motor and a grinding wheel, a guide arrangement mounted on said...	09/01/1992
4995301	Tri-motion grinding fixture A fixture for holding and positioning reamers and other objects for grinding has a support base connectable to a flat horizontal surface and its upper portion is positioned at an angle relative to the horizontal surface. A cylindrical sleeve rotatably mou...	02/26/1991
4937982	Positioning apparatus for tool sharpening A positioning apparatus includes a guide frame with a mounting assembly for mounting the frame on the end face of a tool holder so that it projects transversely away from the holder. A levelling or positioning member is slidably mounted in the frame for m...	07/03/1990
4747607	Lobed chuck for saw regrinding A chuck for a circular saw includes a frusto-conical plate having a plurality of frusto-conical lobes which snugly engage scallops forming an outer diameter of a mounting aperture in a saw blade adapted to be mounted on a splined arbor. With the saw mount...	05/31/1988
4619079	Grinding machine for ball end mills with helical cutter teeth A grinding machine for grinding a ball end mill which has a cutter teeth of a plain or frustconical shape in the circumference thereof and a cutter teeth of spherical shape in the tip end thereof. The grinding machine comprises a turntable for a spindle t...	10/28/1986
4597226	Apparatus for sharpening end mills Apparatus for sharpening the face cutting edges of an end mill is comprised of a rotatable abrasive wheel and three platforms adapted to provide accurate positioning in a vertical and two lateral directions. The third platform, which is uppermost and tilt...	07/01/1986
4576528	Rotary tool holder A rotary tool holder for use with an automatic or semi-automatic tool grinding machine is disclosed. The tool holder includes a rotating collet and spindle. The spindle is driven through a torque limiting coupling for protection against lock up. A shaft i...	03/18/1986
4546575	Method for precision grinding of end mounted objects A tool (15) to be ground is mounted in a vertical position to the upper end of a vertically oriented piston (21). The lower end of the piston (21) is received into the open end of a cylinder (22). Radial fluid bearings (28, 29) are pressurized to permit r...	10/15/1985
4532830	Sawtooth grinding machine A sawtooth grinding machine has a single pivotally mounted grinding head for grinding both the face and back of teeth, such as in a circular saw blade. The grinding wheel is a composite member formed of a disk wheel and a cup wheel. The disk wheel is shap...	08/06/1985
4531328	Tooth rest for cutter grinder A method for the precision sharpening of the cutting edges of a fluted milling tool having a cylindrical cutting head, and apparatus for positioning the milling tool during sharpening. The method involves supportively contacting the flutes with an abutmen...	07/30/1985
4509299	Means for refacing a fuel nozzle and method thereof Apparatus and method for refacing the face of a fuel nozzle to be replaced in the combustor of a gas turbine engine by a grinding operation that synchronously rotates the face in a given plane relative to the plane of the grinding wheel. Means are provide...	04/09/1985
4497139	Apparatus for precision grinding of end mounted objects A tool (15) to be ground is mounted in a vertical position to the upper end of a vertically oriented piston (21). The lower end of the piston (21) is received into the open end of a cylinder (22). Radial fluid bearings (28, 29) are pressurized to permit r...	02/05/1985
4461121	Program-controlled grinding machine, particularly for sharpening of rotatable cutting tools To permit cutting of rotatable machine tools, or sharpening of cutting edges therefrom, for example boring tools, drills, milling cutters and the like, a grinding head has positioned thereon two spindles which carry at least three grinding wheels; one of ...	07/24/1984
4434683	Saw-advancing means with edge engaging pad Saw-advancing apparatus in a grinder for circular saws which includes a pad brought into engagement with the edge of the saw by extension of a fluid-operated ram. The pad and ram are swung as a unit to produce rotation of a saw engaged by the pad....	03/06/1984
4406090	Methods and apparatus for grinding spiral tool cutting edges having non-circumferentially relieved edges A non-circumferentially relieved surface is ground on the spiral cutting edges of an axially elongate tool using a grinding attachment mounted on a tool supporting table for linear movement to the peripheral edge of a grinding wheel having a fixed finger ...	09/27/1983
4373302	Sharpening apparatus for circular blades A bench-mounted sharpener apparatus for large diameter comparatively narrow width circular blades, such as a slitter blade, that includes a gear motor for turning a blade at a steady comparatively slow speed of rotation. A grinding wheel to form a precisi...	02/15/1983
4370834	Machines for grinding toothed cutting tools A machine for grinding toothed cutting tools comprises an emitter capable of emitting a light or an ultrasound ray and an optoelectronic or an ultrasound receiver respectively. The receiver is associated with a circuit for controlling the movement of a ta...	02/01/1983
4341044	Machine for grinding gashes in end mill cutters A grinding machine for automatically cutting gashes into the end of a fluted end mill blank includes a base on which a grinding wheel is supported such that it moves back and forth tracing a swing path. The end mill blank is held in a work head that is su...	07/27/1982
4341046	Tool grind fixture A tool sharpening fixture is provided which is particularly suited for sharpening rotary cutting tools. The tool sharpening fixture comprises a housing having a throughbore and a bushing rotatably mounted in the housing throughbore and having an eccentric...	07/27/1982
4335543	Method and means of manufacturing an improved disc reel mower A continuous abrading belt means and method for manufacturing an improved mowing machine of the type which includes a bed knife, a cylindrical rotary knife which, in turn, comprises a plurality of generally elliptical discs mounted parallel to each other ...	06/22/1982
4287686	Clamping apparatus for clamping cutter blades of a gear cutting machine at a grinding machine A clamping or chucking apparatus is provided wherein the cutter blades or cutters, for the grinding thereof, are mounted in a cutter head. The cutter head is rotatable in the clamping apparatus about a cutter head axis, and further, is pivotably arranged ...	09/08/1981
4276722	Tap sharpener A tap sharpener has a base defining a base axis and carrying a support which is pivotal on the base about a support axis inclined to the base axis. A tap holder is fixed on the support for joint rotation therewith about the support axis and has a retainer...	07/07/1981
4261142	Form relieving apparatus A form relieving apparatus for providing axial and radial relief for a cutting tool such as a drilling or reaming bit, including a workpiece supporting carriage mounted for rectilinear movement in one of two perpendicular directions or in any direction th...	04/14/1981
4172340	Work holder for grinder Apparatus based on right-angle socket adapted to hold therein either square or round shank of workpiece for grinding faces of latter in diverse arcuate and/or planar patterns. Setting requires use of only two adjustments, each effected with great and easi...	10/30/1979
4163345	Arrangement for the grinding of rotary profile cutters An arrangement for the grinding and cutting of rotary profile cutters having, in combination mounted on a base, a first reciprocable table on which is mounted a rotatable platen. A rotatable workpiece carrier assembly is fixed to the platen and these have...	08/07/1979
4134235	One chuck grinding apparatus for end milling cutters and the like Apparatus for manually sharpening the bottom, radially divergent, flute ends or cutting edges of an end milling cutter (hereinafter referred to as an "end mill") which apparatus includes: a stationary, beveled disc-type or plain grinding wheel mounted for...	01/16/1979
4110936	Grinding arbor A grinding arbor for holding one or more cutting tools such as a chaser is desirably provided with two or more stations so that all members of the set may be ground uniformly. The body of the arbor is sectioned preferably in a generally L-shaped cross-sec...	09/05/1978
4106242	Workhead for an automatic bur grinding machine A bur grinding machine especially adapted to grind dental burs and including a turntable supporting a plurality of similar workheads having collets to support bur blanks; a plurality of grinding units mounted on a stationary base in circumferentially spac...	08/15/1978
4102224	Grinding machine with means for advancing a saw A grinding machine for grinding teeth in a saw including saw advancing means having clamp mechanism for engaging a saw. The clamp mechanism is then moved to rotate the saw past an indexing means, which is followed by movement in the opposite direction to ...	07/25/1978
4098149	Grinding machine A dual side saw tooth grinding machine with power-driven grinding wheel assemblies mounted on pivoted supporting arms organized so that edge portions of grinding wheels in the assemblies are moved in sweeps across opposite sides of a tip in a saw tooth wh...	07/04/1978
4004377	Machine for forming a locator pin A machine for forming the head end portion of a locator pin has a base rigidly mountable. A housing is transversely movably mounted on the base. A pin mounting is on the housing. The machine in use rotates the pin mount simultaneously with moving the hous...	01/25/1977

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Class 451/374 - Rotary cutter