Class 29/81.11 - Scraper or scalper

Subclass of Class 29 - Metal working
Definition: Process or apparatus wherein the workpiece is contacted
No. of patents: 19
Last issue date: 05/18/2004

Number	Title	Issue Date
6735840	Burnishing tool A burnishing tool is disclosed in one presently preferred embodiment of the present invention as including a first end, a second opposing end, and an elongated intermediate portion disposed between the first and second ends. The intermediate portion of the burnishin...	05/18/2004
6481075	Downstream guide for peeling machine A peeling machine through which a rod workpiece is moved along a workpiece axis has upstream and downstream guides centering the workpiece on the axis is and axially flanking a rotary scraper engaging the workpiece and carried on an upstream end of a scra...	11/19/2002
6231430	Carbon electrode cleaning system and method The present invention is directed to improved apparatus' for dislodging and abrading cryolite encrustations from carbon anodes spent during aluminum smelting. Both the plow blade and flailing elements of the present invention are constructed and arranged ...	05/15/2001
5462127	Holding device The present invention is for a holder for a device comprising axially vibrating and/or beating tools, e.g. a device for removal of hard layers by axing using an axially vibrating and beating chisel. The device is manually controlled and transfer of vibrat...	10/31/1995
5363530	Pipe joint cleaner A pipe joint cleaner device primarily for plastic pipes which after being cut are to be joined together comprising an open tapered cone member having a plurality of sharp raised projections on both the exterior face of such cone and on the interior face t...	11/15/1994
5263221	Paint scraper A point scraping device having a rotating coil spring which has one end mounted on a rod member having one end adapted to be mounted in a chuck. A rubber core having spring steel wires therein is mounted within the coil spring. The coil spring has rows of...	11/23/1993
5255581	Peeling machine A peeling machine (1) includes individual device groups (2, 5, 63, 7) which can be centered and clamped at guide rails (23, 24). The guide rails also furnish a particular sliding possibility for a selective moving apart of individual device groups (2, 5, ...	10/26/1993
5199143	Shaving machine Plastics having coatings are reused by first removing the coatings as by shaving or treatment with solvents or jets of hot liquid or vapor that melt the coatings and blow them away. Thin plastic pieces like compact discs are passed through surface milling...	04/06/1993
5157803	Sweeper A sweeper for sweeping the interior space of a pipe by passing the sweeper through the pipe to remove scale from the inner surface of the pipe. The sweeper includes a body made of a resilient material, such as foamed polyurethane, and a plurality of pins ...	10/27/1992
5109564	Manual valve cleaner for removing deposits from intake and outtake valves of internal combustion engines The invention is directed to a apparatus that facilitates the removal of excess combustion deposits from combustion chamber valves of conventional internal combustion engines. The apparatus has a handle at one end of a hollow cylinder and a plurality of r...	05/05/1992
5095600	Paving breakers and supports therefor There is described a paving breaker wherein vibrational forces arising from reciprocation of the breaker are reduced at the breaker handles by removing the conventional direct attachment of the handles to the breaker, and instead resiliently coupling the ...	03/17/1992
5081734	Floor scraping machine A floor scraping machine includes a mounting plate rotatable about a vertical axis with a plurality of blade holding assemblies. Each assembly includes a blade mount for securing a scarfing blade, and a biasing means acting on the mount for urging the mou...	01/21/1992
5023984	Deburring method and machine A method and machine adapted to deburr items having burrs, particularly pressed sponge metal compacts of zirconium or hafnium. The burrs are gently scraped away by one or more endlessly moving, substantially horizontal preferably rotary screens preferably...	06/18/1991
5001801	Oscillating line travel pipe cleaning machine A self-propelled pipe cleaning machine as disclosed for use in removal of deteriorated coatings, such as coal tar or tape, from pipelines and providing a degree of surface preparation suitable for recoating. The machine comprises a travelling frame for mo...	03/26/1991
4912799	Water main scraper A scraper for use in repairing underground pipe breaks consisting of two parallel chains carrying transverse square scraper rods....	04/03/1990
4492011	Scraper to rough down the surfaces of a coated finish A scraping tool more particularly intended to rough-hew surfaces coated with a primer and set up in a frame comprising at least two lateral walls and a face of a plane taken the form of the surface to rough-hew and supplied with an opening in which the sh...	01/08/1985
4486931	Scarifying machine A scarifying machine is provided with a mounting plate having a plurality of downwardly open wells formed in it adjacent its periphery and that extend above the plane of the plate. Each well is defined and bounded by a pair of downwardly diverging, upward...	12/11/1984
4443143	Billet scalper and drive mechanism therefor A billet scalper including a die assembly with a scalping die, a pressing mechanism with a stem member in axial alignment with the scalping die for pressing a billet thereinto, and a chip ejector located around the circumference of the scalping die and mo...	04/17/1984
4388029	Conditioning apparatus for case metal bars Conditioning apparatus for a cast metal bar is disclosed which comprises a conveyor having a plurality of blocks each of which has a surface depression defining a bar support and guide channel, an endless support to which the blocks are mounted in an endl...	06/14/1983

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Class 29/81.11 - Scraper or scalper