Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6502589 | Method and device for cleaning and polishing jewelry The present invention broadly comprises a cleaning device for jewelry comprising a container having a top rim, side walls, and a bottom; a mesh liner operatively arranged to be removably secured within the container and proximate the side walls and bottom... | 01/07/2003 |
| 6439985 | Sanding machine clamp bar A paper clamp bar for a sanding machine comprises an elongate steel bar having two opposed major faces each defined by a concave helical surface. As a result the clamp bar can be fitted either way up to the drum of a sanding machine.... | 08/27/2002 |
| 6217430 | Pad conditioner cleaning apparatus A cleaning cup for holding and cleaning a pad conditioner having a conditioner head, the cleaning cup includes a spray nozzle for spraying a cleaning solution on a top side of the conditioner head. The cleaning cup further includes a plurality of support ... | 04/17/2001 |
| 6126530 | Cleaning device for surface plate correcting dresser To provide a cleaning apparatus capable of easily and positively washing off attachments from a dresser (6) for dressing a lap in a plane polishing apparatus. An air nozzle (15) for bubbling, a first bottom surface brush (18) that comes in slidable contac... | 10/03/2000 |
| 6106375 | Apparatus for processing waste liquid and waste gas in polishing device A processing apparatus for efficiently discharging both polishing liquid flowing out a surface plate and mist of polishing liquid produced through polishing with the use of simple measures, is composed of a drain receiver which is provided in proximity wi... | 08/22/2000 |
| 6068544 | Apparatus and method for calibrating a polishing head An apparatus for calibrating the centering of polishing heads in a polishing machine that is equipped with a plurality of spindles onto which polishing heads are mounted and a method for using such apparatus are disclosed. In the apparatus, a calibration ... | 05/30/2000 |
| 6053806 | Suction device for a hand-held tool A suction device for a hand-held tool having a plate-like working tool, the section device including a hood-shaped housing covering a rear side of the tool (4) and partially a working tool circumference and connectable with a device for creating vacuum, a... | 04/25/2000 |
| 5964649 | Grinding cup and wear part therefor A grinding cup includes a wear part having a cavity at its front end, the cavity configured for grinding a button of a rock drill bit. A flush channel extends forwardly through the wear part and terminates at the cavity for conducting a flushing medium th... | 10/12/1999 |
| 5944593 | Retainer ring for polishing head of chemical-mechanical polish machines A retainer ring is provided for used on the polishing head of a CMP machine, which can allow the slurry being applied to the CMP process to be uniformly distributed over the surface of the wafer. The retainer ring is designed for use on a CMP machine of t... | 08/31/1999 |
| 5938513 | Apparatus for handling polishing carriers A carrier carrying device (CCD) for holding a workpiece carrier includes a lower portion and an upper portion coupled to the lower portion. A plurality of shoulder screws are employed to couple the upper and lower portions together; the shoulder screws re... | 08/17/1999 |
| 5901694 | Counterweight for silicon ingot endcuts A counterweight to facilitate endcuts from silicon ingots comprising a bent angle moment arm and adjustable weighting means.... | 05/11/1999 |
| 5807161 | Reversible back-up pad A back-up pa supporting and releasably engaging an abrasive article. The back-up pad comprises: a body including a front surface and a back surface in which the front surface comprises a first attachment component thereon and the back surface comprises a ... | 09/15/1998 |
| 5707277 | Unitary internal/external extension plate for a jig grinder A single unitary reversible precision tool accessory for a jig grinder constituted by a extension plate which extends selectively either the internal or the external grinding capacities of a jig grinder machine.... | 01/13/1998 |
| 5643066 | Fixture for ski edge finishing tool A fixture for positioning a file or other abrasive finishing tool relative to the running surface of the ski so that the bottom face of the ski edge may be beveled. The fixture is configured to allow either or both the angle and the width of the bottom fa... | 07/01/1997 |
| 5558570 | Power tool having detachable auxiliary handle A power tool having a detachable arrangement of an auxiliary handle relative to a main body. The main body has a handle receiving portion. The auxiliary handle has a grip portion and an insertion portion engageable with the handle receiving portion. The i... | 09/24/1996 |
| 5490807 | Sand-blast sign-making apparatus A sand-blast sign-making apparatus for forming a plurality of horizontally extending and alternating grooves and peaks on the planar front surface of a degradable blank of synthetic substrate material having a non-degradable stencil removably applied ther... | 02/13/1996 |
| 5435770 | Method of manufacturing etched wood products Screening techniques are used to form a patterned mask on a surface of a wood article, and particle blasting is used to transfer the pattern of the mask to the wood article. A screen on procedure that employs a 50-80 mesh material on which a reverse image... | 07/25/1995 |
| 5429109 | Method and apparatus for cutting wet concrete A concrete cutting saw is provided for the cutting of grooves in the surface of wet concrete. The concrete saw generally comprises a motor driven rotating cutting blade mounted on a support structure. The concrete saw is supported during cutting by wheels... | 07/04/1995 |
| 5347765 | Device and method for multiple uses of a portable grinder A device is used to adapt a portable angle grinder for use with a drill chuck and associated drill chuck accessories. The device engages the spindle of the grinder to the drill chuck and provides the interface necessary to permit the grinder to be compati... | 09/20/1994 |
| 5197234 | Abrasive engraving process An abrasive engraving process employing the steps of applying a topical coating 30 of magnetically interactive material to a work substrate 10, applying a stencil 40 cut from a magnetic material to the surface, covering stencil 40 with an identically cut ... | 03/30/1993 |
| 5139138 | Combination razor and container with sharpener A razor assembly for shaving, and a combination razor assembly and container for sharpening the razor, is provided. A razor body includes a blade carrier with a reusable blade. A blade guard engages the blade for guiding over the skin surface during shavi... | 08/18/1992 |
| 5069004 | Abrasive engraving process An abrasive engraving process employing the steps of applying a topical coating 30 of magnetically interactive material to a work substrate 10, applying a stencil 40 cut from a magnetic material to the surface, covering stencil 40 with an identically cut ... | 12/03/1991 |
| 4893436 | Felted foam back up pad A back up pad of felted polyurethane foam for use on a vibrating or oscillating sanding device that both efficiently transfers driving forces between the surfaces of the pad to drive a sheet of coated abrasive adhered to its outer surface against a workpi... | 01/16/1990 |
| 4803811 | Lapping device for surface enhancement of bulk material A lapping device for surface enhancement of bulk material including a treatment chamber which is closed gas-tight and is charged with an inert gas, at least one vibratory conveyor being arranged in the treatment chamber and an arrangement for creating mot... | 02/14/1989 |
| 4716096 | Method and apparatus for producing characters on a grit-erodible body A method and apparatus for producing characters on a surface of a grit-erodible body are provided. A negative of the characters is first produced, usually photographically. Ultraviolet light is then directed through the negative onto a blasting mask blank... | 12/29/1987 |
| 4671022 | Bathtub abrading system A portable system (10) for abrading the floor of a bathtub (26) to render it slip resistant. The system contains a portable power unit (12) containing an air compressor providing compressed air to abrading unit (14) via compressed air hose (20) and provid... | 06/09/1987 |
| 4590713 | Polishing apparatus A polishing apparatus includes a driving source, a polishing member driven by the driving source, and a pair of guide members. The polishing member is composed of a pair of rigid support plates and an elastic body sandwiched therebetween. The lower-positi... | 05/27/1986 |
| 4356671 | Method and apparatus for cleaning abrasive surfaces A method and apparatus for cleaning abrasive belts of the type used in belt sanding operations. The apparatus includes a module having a frame composed of abradable side wall members. A block of cleaning material of natural or synthetic rubber is containe... | 11/02/1982 |
| 4324030 | Apparatus for removing a grinding wheel An apparatus for use in removing and replacing a grinding wheel of a portable industrial grinder of the type having an output shaft, a grinding wheel support sleeve on the shaft, a non-circular collar formed on the sleeve, and laterally extending handles.... | 04/13/1982 |
| 4317660 | Manufacturing of flexible abrasives Abrasive grains are bound to a flexible support by a pattern of resin applied by means of a curved stencil having a wall thickness of 0.08 to 1 mm and having holes with a diameter of 0.05 to 3 mm, the total hole area amounting to 5 to 50% of the area of t... | 03/02/1982 |
| 4266378 | Glass etching device A device for etching glass. An electric motor rotates an impellor enclosed within a housing into which abrasive particulate material is drawn by means of an inclined tube. The impellor, impellor housing and inclined tube are located within a compartment p... | 05/12/1981 |
| 3977496 | Air tool lubricator A lubricating device in a pneumatic tool or the like, which device is tool mounted beyond an on-off or throttle valve and utilizes air pressure from within the tool to achieve a metering flow of stored lubricant. The device is installed for convenient ser... | 08/31/1976 |
