Class 83/521 - Mirror or lens

Subclass of Class 83 - Cutting
Definition: Device in which an image is formed by reflection or refraction.
No. of patents: 38
Last issue date: 02/15/2011

Number	Title	Issue Date
7886644	Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position A cutter including a base, a holder, a cutter blade portion, and a laser generator. The holder is supported on the base portion in an upright posture. The cutter blade portion supports a moving blade. The cutter blade portion is supported on the holder movable betwe...	02/15/2011
7836806	Positive-angled light beam rotary saw cut alignment device A cut alignment device for a rotary saw having a motor which spins a cutting unit which includes a rotary shaft driven by the motor, a circular blade having a central aperture through which the shaft fits, and a structural housing. The cut alignment device includes ...	11/23/2010
7418894	Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position A cutter including a base, a holder, a cutter blade portion, and a laser generator. The holder is supported on the base portion in an upright posture. The cutter blade portion supports a moving blade. The cutter blade portion is supported on the holder movable betwe...	09/02/2008
7398719	Miter saw having a light beam alignment system A table saw such as a chop saw, a miter saw, compound miter saw or a sliding compound miter saw that is provided with a laser arbor alignment system. An opaque shield or transparent shield having an opaque mask blocks the laser beam from being projected into a range...	07/15/2008
7387058	Miter saw having light beam projection device A miter saw including a base, a turntable, a cutting unit rotatably supporting a circular saw blade, and a support unit movably supporting the cutting unit at a position above the turntable. The support unit has a hinge formed with a recess in which a laser oscillat...	06/17/2008
7369916	Drill press A power tool control system connected with a drill press provides a system for determining operational settings for the drill press and/or structural factors of a workpiece to be operated upon by the drill press. For instance, the power tool control system may estab...	05/06/2008
7359762	Measurement and alignment device including a display system A graphical user interface communicatively coupled with a non-contact measurement and alignment device enables user control over and display of the readings from the non-contact measurement and alignment device. In operation with a power tool, the graphical user int...	04/15/2008
7290474	System for rapidly stopping a spinning table saw blade A system for stopping a spinning table saw blade is comprised of a pin assembly disposed adjacent to a saw blade assembly for stopping a spinning saw blade. A receiving block is disposed on a side of the saw blade opposing the pin assembly for receiving the tip of t...	11/06/2007
7243440	Gauge for use with power tools A gauge for connecting with a power tool and providing a system for determining structural factors of a workpiece to be operated upon by the power tool is provided by the present invention. The gauge including a probe connected with a sensor via a spring, wherein co...	07/17/2007
7226179	Optical alignment system for power tools An optical alignment system. In an embodiment, the system includes an optical emitting device for projecting an optical indicator onto a workpiece surface area. Further, a lateral arm may be coupled to the optical emitting device for supporting such device. In addit...	06/05/2007
7207251	Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position A cutter including a base, a holder, a cutter blade portion, and a laser generator. The holder is supported on the base portion in an upright posture. The cutter blade portion supports a moving blade. The cutter blade portion is supported on the holder movable betwe...	04/24/2007
7159497	Light beam alignment system A saw such as a chop saw, a circular saw, a compound miter saw or a sliding compound miter saw having a rotatable saw blade is provided with a laser arbor alignment system. The laser arbor may include a power generator that generates power as the saw blade and the l...	01/09/2007
7137327	Riving knife assembly for a dual bevel table saw An embodiment of the present invention is directed to a riving knife assembly for a dual bevel table saw, comprising: a first armature configured for coupling with a beveling member; a second armature adjustably and rotatably coupled with the first armature; a first...	11/21/2006
6979153	Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ...	12/27/2005
6976764	Laser guiding device for tile cutting machine A laser guiding device is adjustably connected to a support frame on a top of the tile cutting machine and includes a frame in which a laser generating piece is received. An adjusting screw threadedly and transversely extends through the frame and is rotatably conne...	12/20/2005
6915727	Angled light beam rotary saw cut alignment device A cut alignment device for a rotary saw having a motor which spins a cutting unit which includes a rotary shaft driven by the motor, a circular blade having a central aperture through which the shaft fits, and a blade mounting device for holding the blade on the sha...	07/12/2005
6481322	Sawing apparatus combined with marking device A marking device is provided for sawing apparatus having a sawing blade and a blade rack behind the sawing blade and supporting the sawing blade. The marking device comprises a fixing frame arranged on the blade rack, a marker arranged within the fixing f...	11/19/2002
5446635	Laser assembly for marking a line on a workpiece for guiding a cutting tool A laser marker including a laser marker body to hold a battery power supply and a control circuit, a laser module pivotably connected to the laser marker body and controlled by a push-button switch of the control circuit board to emit a laser beam, a set ...	08/29/1995
5287779	Radial saw safety guards and barriers A radial saw with safety guards and barriers for rip cutting and cross cutting of workpieces is disclosed. The radial saw includes a motor driven saw blade that is mounted on the supporting arm which overhangs a worktable. The motor driven saw blade is mo...	02/22/1994
5174188	Process and device for marking and cleaving plaquettes of monocrystalline semiconductor materials A process and device for marking and cleaving plaquettes of monocrystalline semiconducting materials is described. According to invention, in order to mark off a reference direction onto a plaquette of a monocrystalline semiconducting material having a lo...	12/29/1992
5131301	Paper cutting machine A sensing mechanism for use with a paper cutting machine having a table for supporting a pile of sheets to be cut. There is provided a knife for cutting the pile, a movable clamp for the pile, a back gauge for movement along the table against the pile to ...	07/21/1992
4914998	Security document processor A device for obliterating information discernible on disposable carbons from multi-part forms used in credit card transactions includes a processor contained within a housing defining a document receiving slot in an optically transparent viewing window, w...	04/10/1990
4893536	Center punching apparatus A center punching apparatus is disclosed as having an upper die base and a lower die base relatively movable. An upper die is mounted on the upper die base facing downwardly and on the lower die base a rotatable turntable is mounted for rotation about an ...	01/16/1990
4633305	Method of recording image signals of photographic pictures A method of magnetically recording photographic pictures into a magnetic disc contained in a magnetic disc pack. According to this method of recording image signals of the photographic pictures, the photographic pictures formed on a roll-shaped print are ...	12/30/1986
4616544	Cutting machine for preparing models for spectacle lenses A cutting machine for preparing a model for spectacle lenses comprising a base rotatable about its axis by a drive for supporting a spectacle dummy lens or real lens concentrically placed thereon and serving as a model lens, a clamp rotatable with the bas...	10/14/1986
4601224	Hot wire cutting system A hot wire cutting system for cutting a pattern shape in a block of polyfoam for use as a casting mold for a metal shielding block to be used in radiotherapy treatments is described. The system provides proportioned current responsive to deflection of the...	07/22/1986
4573834	Piercer A piercer used for the manufacture of clothing and the like comprises a frame with upper and lower parallel disposed arms. A channel plate extends uprightly from the free end of the upper arm and includes an associated guide plate or guide rail extending ...	03/04/1986
4532838	Method in a microtome for creating the possibility that the slit between the knife edge and the specimen can be made extremely narrow Method in a microtome, especially an ultramicrotome, in which a knife edge, turnable around its longitudinal axis, is used to cut sections from a specimen by making the specimen downwardly pass over the knife edge. The distance between the knife edge and ...	08/06/1985
4503740	Optical cutting edge locator for a cutting apparatus An optical cutting edge locator for a cutting machine having a knife for cutting single or multiple sheets of material comprises a light source, a light-projecting system above the knife for downwardly projecting a beam of light from the light source alon...	03/12/1985
4419820	Material cutting machine A movable guide system for material or cloth cutting out machines which can be easily manipulated and thereby facilitate the rapid filling of orders. The movable guide system employs the rotary arm machine principle, in which a frame extends over a laying...	12/13/1983
4413414	Hand held portable band saw A band saw or scroller is provided which includes a housing with confronting spaced portions and apparatus for carrying a plurality of rollers for supporting a closed loop band saw blade for travel of the blade in a closed loop path with a portion of the ...	11/08/1983
4380946	Film punch registration In a method of and apparatus for punching a set of exposed films to obtain punch registration, two magnified images of respective areas of film are projected onto respective screens of two independently movable projection units so that either the magnifie...	04/26/1983
4230011	Automatic center punch for templates A machine for production shops to make templates, the machine including a flat base having stops against which a template blank can be rested two tracks going north to south, or vice-versa, along which a first gauge carriage travels ONLY north to south, o...	10/28/1980
4164248	Method and apparatus for cutting off defective portions of lengths of timber A method and apparatus for cutting portions having defects therein from lengths of timber includes determining an aligning distance for a given one of the lengths of timber as the timber length moves along a conveyor, the aligning distance being defined b...	08/14/1979
4154046	Apparatus for processing developed photographic prints and films Webs of customer films and webs of related prints are transported in synchronism vertically downwardly toward a severing unit which subdivides the films into sections each of which includes several film frames and which simultaneously subdivides the web o...	05/15/1979
4146907	Multiple frame projector for TV viewing system A photographic packaging system includes a monitoring system which permits the operator to compare frames of the film negative with prints which are being cut so as to assure that the proper prints will be packaged with the corresponding film negatives. T...	03/27/1979
4086836	Multiple frame projector for TV viewing system A photographic packaging system includes a monitoring system which permits the operator to compare frames of the film negative with prints which are being cut so as to assure that the proper prints will be packaged with the corresponding film negatives. T...	05/02/1978
4059475	Combined mounting and projection apparatus for aperture cards This invention relates to a mounting apparatus for aperture cards comprising cutting means for severing individual filmed images from a strip of film, said cutting means including a knife unit and a counter-knife unit, said knife unit being part of a plun...	11/22/1977

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Class 83/521 - Mirror or lens