Class 241/239 - Nonrotary surface adjustable or yieldable relative to rotary surface

Subclass of Class 241 - Solid material comminution or disintegration
Definition: Apparatus in which a nonrotary surface which cooperates
No. of patents: 40
Last issue date: 09/23/2008

Number	Title	Issue Date
7427040	No-oil shredder and other no-oil machinery No-oil high-security shredders, other no-oil shredders, and other no-oil machinery are provided. By using zero-clearance and a sacrificial material, the need to oil shredder machinery has been eliminated. A single no-oil destruction machine advantageously may receiv...	09/23/2008
7327109	Adjustable bridge for acoustic stringed instruments A bridge for providing adjustable active string length on acoustic stringed musical instruments comprised of a concavity surrounding a plurality of individually adjustable saddles that are arranged individually and independently to support each string and be freely ...	02/05/2008
7229041	Lifting lid crusher A blockage clearance apparatus for a crusher that has a housing and a lid and at least one anvil mounted to the lid for crushing material. The housing contains a rotatable rotor with radial blow bars against which crushable materials are forced during operation. In ...	06/12/2007
7216824	Shredder with oscillating side walls A shredder for shredding a by-product, such as sprue, runner and the like generated when molding a thermoplastic synthetic resin product, into recyclable shredded pieces, is structured such that front and rear oscillating side walls are openable, right and left stat...	05/15/2007
6945025	Shredder head with protective elements, and mobile sylvicultural apparatus including the same A shredder head, and a mobile apparatus including the same, for carrying out various sylvicultural applications, such as land clearing and the like. Each of the shredding assemblies of the shredder head includes a protective element also operatively connected to the...	09/20/2005
6250577	Bearing apparatus for axially stressing a rotor element carried on a rotor shaft The present invention relates to a journal bearing apparatus that is specifically configured to apply an axial load on a rotor element carried on the rotor shaft. The invention includes a bearing cylinder concentrically positioned on the rotor shaft betwe...	06/26/2001
5911372	Material reduction apparatus Material reduction apparatus for reducing waste material consisting of both metallic and non-metallic waste which is required to be rendered separable so that each type of waste material is rendered useable, and apparatus that embodies cutters on a single...	06/15/1999
5743472	Material reduction apparatus Material shredding apparatus having a motor driven shaft carrying a material shredding rotor operatively mounted in a housing assembly adjacent a pivotally yieldable material shredding cutter and a shredded material sizing screen pivotally movable between...	04/28/1998
5697562	Rock crusher A rock crusher comprises a pair of rotors spaced apart to define a throat therebetween and driven in opposite directions. Impactor bars on the rotors crush rock that is delivered to the rotors and passes the broken rock fragments through the throat. The r...	12/16/1997
5645234	Compact reduction grinder A trailered, short stroke reduction grinder including a telescoping, multi-stage push ram and hydraulic grinding head which are operable from seat mounted joy sticks in an enclosed operator cabin. Collected reduction materials are pushed to a grinding cha...	07/08/1997
5503339	Comminuting machine with comb-like further comminuting structure The comminuting machine includes a housing provided with a rotary impact mechanism. A conveyor conveys infed material to the rotary impact mechanism which cooperates with an impact plate in disintegrating the infed material. A comb-like further comminutin...	04/02/1996
5490636	Rotary jaw crusher A rotary jaw crusher comprises a rotor, which carries at least one revolving jaw and rotates within a housing about a horizontal axis of rotation, and a stationary jaw, which is fixed to the housing and is substantially disposed above the descending porti...	02/13/1996
5482218	Rock crushing apparatus and method The invention provides an apparatus for crushing material such as rock and includes a support structure having an inlet and an outlet. A powered rotor shaft rotates with respect to the support structure about a shaft axis, and a rotor mounted eccentricall...	01/09/1996
5454522	Apparatus for breaking solid objects An apparatus for breaking solid objects includes a box-shaped support (6) open at the top and at the bottom, a substantially horizontal rotor (6) mounted in the box and carrying at least one knife which turns with it while passing between backing knives, ...	10/03/1995
5427321	Waste paper processing system A waste paper processing system includes an upper shredding portion and a lower compressing portion. The shredding portion includes to horizontally parallel shafts mounting thereon a plurality of circular blades. The shafts are rotated to spin outwardly o...	06/27/1995
5402948	Comminuting device with face This invention relates to a comminuting device which processes small pieces of bulk materials, such as pieces of rubber tires, into crumb-sized particles. It is designed to operate at slow speeds, 50-350 rpm by having the work material move along the exte...	04/04/1995
5332164	Materials grinder A materials grinder for comminuting large "chunks" of aggregated material having a conveyor for transporting quantities of materials, including large "chunks" thereof, and a grinder having a large chamber for receiving and grinding the material into small...	07/26/1994
5197682	Portable hydraulic shredder Portable tractor, trailer apparatus for shredding varieties of materials, including asphalt, concrete, wood, demolition and landfill debris. A fifth-wheel mounted trailer includes a collection hopper having a hydraulically driven end-wall which directs ma...	03/30/1993
5155975	Shredder/compactor assembly for recycling waste material A fabric bag is used to be packed with shredded waste material from a shredder/compactor. During loading, the bag is confined in a close-fitting steel box and is supported on a fork lift-type ballast. Use of the box as a confining rigid jacket enables the...	10/20/1992
5096128	Grinding device for medical waste A grinding device for medical waste includes a driving device, a hollow housing, a shaft vertically journalled in the housing driven by the driving device. A first bowl-shaped grinding container is coaxially provided in the housing with respect to the sha...	03/17/1992
5076504	Poultry pulverizer A poultry pulverizer comprises a portable framework with a vertically oriented hopper secured thereto having an open top end and a lower end. A horizontally disposed shear wheel is positioned at the lower end of the hopper where it forms a bottom wall. Th...	12/31/1991
4771953	Retractable anvil chipper A wood and stump chipper having a rotational chipper disc with protruding blade means for chipping wood advanced thereto; a support trough for wood; a ram for advancing wood along the support trough to the disc; power means for shifting said ram from a po...	09/20/1988
4767069	Multipurpose pulverizer device A pulverizer device is provided for pulverizing food, garbage and the like. The pulverizer includes a housing with a centrally disposed, rotatable shaft carrying a plurality of cutting and grinding stages which cooperate with opposingly mounted cutting an...	08/30/1988
4760967	Mulcher-chopper A mulcher-chopper of the type in which a horizontally disposed blade is mounted on a driven vertical shaft within a comminuting chamber. The blade is provided with deep and sharp serrations, thereby increasing the effective blade length and enhancing effi...	08/02/1988
4730791	Arrangement of the working gap of a crushing machine having a horizontally disposed hammer crusher rotor An arrangement of the working gap of a crushing machine having a housing in which is disposed a hammer crusher rotor via a horizontally disposed shaft. The working gap is disposed between the striking circle described by the hammers of the rotor as the la...	03/15/1988
4637204	Lawn mower bedknife adjustment A lawn mower for a reel type lawn mower, and including mechanism for urging the bedknife cutting edge toward the reel and for positioning the bedknife cutting edge in the direction away from the reel, if desired. The cutting edge can be positioned either ...	01/20/1987
4619413	Forage or picking harvester A forage or picking harvester for the rough grinding of grain has a housing with a cylindrically shaped outer wall. A cutting blade wheel is located within the housing coaxial with the cylindrically shaped wall. The housing has an inlet and an outlet with...	10/28/1986
4459903	Vertical abrasive roll rice polishing machine An abrasive roll rice polishing machine which comprises a vertical framework assembly, a vertical rotary shaft extending in the vertical axis of the framework assembly and journalled therein, an abrasive roll mounted on the shaft for rotation therewith, a...	07/17/1984
4426922	Vertical frictionally abrasive roll rice polishing machine A vertical frictionally abrasive roll rice polishing machine in which a vertical rotary shaft extended in the vertically axial direction of a framework assembly, a vertical frictionally abrasive roll is mounted at the upper end of the shaft, a polishing c...	01/24/1984
4364525	Blade attachment for food processor A rotatable cutting blade assembly for a food processor having an annular flange intended to fit closely in a circular container of a food processor, the flange having in it an aperture above which a blade is mounted, a screw-threaded arrangement being pr...	12/21/1982
4358995	Apparatus for crushing articles An apparatus for crushing articles, such as aluminum beverage cans. The crushing apparatus comprises a rotatable, polygonal-shaped drum having blades mounted on each flat outer surface of the drum which project outwardly beyond the respective surface. The...	11/16/1982
4257511	Method and apparatus for selective recovery of metal containers A method and apparatus for recovering metal containers of a selected type from a collection of trash is disclosed. The apparatus includes pneumatic and magnetic separators for removing extraneous debris. The separated containers are crushed and weighed. C...	03/24/1981
4142688	Apparatus for handling waste including rubber tires Waste such as combustible trash and prime garbage is mixed with rubber tires and shredded together to produce a compacted and combustible output product which can be used as a fuel or incinerated for further compacting. The apparatus involves interengaging rot...	03/06/1979
4120459	Impact crusher with retractable and tiltable feed chute An impact crusher is disclosed having a rotor carrying hammers arranged to strike and throw material against target members, and a material feed assembly. The feed assembly includes a downwardly inclined chute having depending cam followers which ride upo...	10/17/1978
4117983	Leaf collector and comminutor A leaf collector and comminutor is disclosed having a collection receptacle in the form of a bag and a housing for delivery of comminuted tree leaves into the bag, the housing having thereon a motor driven rotary blade assembly, having a fan portion and a...	10/03/1978
4088273	Comminution machine with a comminution rotor A comminution machine has a comminution rotor and a crushing edge between which is formed a crushing gap for breaking a charge of material. An adjustable rocker arm is provided which has an adjustable spacing from the comminution rotor which is independen...	05/09/1978
4083502	Material shredder, especially for sugar cane A shredder for crushing materials, such as sugar cane, has a housing and a hammer rotor rotatably mounted in the housing for cooperation with an anvil resiliently mounted in the housing. The anvil is journaled at each of its lateral ends to a respective g...	04/11/1978
4059233	Forage harvester A forage chopping and propelling device including a casing having an inclined bottom and disposed therein a chopper rotor and a booster impeller that operate as an integrated assembly to receive forage from an inlet, chop the forage and eject the chopped ...	11/22/1977
3995783	Yieldable shear bar for a forage harvester A forage harvester has a cylinder type cutterhead and a plurality of feed rolls that feed crop material radially into the cutterhead over a shear bar normally positioned adjacent to the cutterhead in registry therewith. The shear bar is mounted for resili...	12/07/1976
3963183	Resharpenable recutter screen for forage harvester For use in an agricultural forage cutter, a recutter characterized by open passageways for ready passage of the forage material and by a grindable cutting edge on the recutter adjacent the path of the rotating cutter knives whereby a shearing action is ac...	06/15/1976

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Class 241/239 - Nonrotary surface adjustable or yieldable relative to rotary surface