U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6637447

Beerbrella

A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 492/21 - WITH INTERNAL WEDGING EXPANDER


Subclass of Class 492 - Roll or roller
Definition: Roll wherein the internal support for the working surface
No. of patents: 50
Last issue date: 12/13/2011


1    
NumberTitleIssue Date
8075465Roller assembly with an eccentric expandable cover retaining ring and a method of manufacturing the roller assembly
A roller assembly for a production machine having an inner wheel base capable of attachment to the driving axle of a production machine and an expandable outer ring which is cooperatively connectable to the inner wheel base is disclosed. The circumference of the exp...
12/13/2011
7871361Rotating roller to shape moving webs
A rotating roller imparts complex curvature onto a web of material. The roller includes a flexible outer surface and a plurality of control rings inside the rotating roller. The control rings are mounted coaxial to a central shaft and are disposed side by side along...
01/18/2011
7867155Expander roller
A roller for a web-processing machine, the roller having a support core, which is braced in the region of both its ends via a respective bearing arrangement, and an outer covering, which in its axially central region is mounted in a radially fixed manner in relation...
01/11/2011
7275632Roller conveyor roller, especially for the transport of furnace-heated metallic strip material
A roller conveyor roller for furnace-heated metal strip has a roller shell journaled on a shaft with bearings providing thermal and electrical insulation of the shell from the shaft. The shell can be divided into shell segments each of which can have two bearings. O...
10/02/2007
7140568Multi-sided shaft for a crusher
A shredder, crusher, hammermill, ringmill or the like is provided with a multi-sided rotor shaft to which spider arms and hammers are mounted. The rotor shaft has at least one pair, and preferably two or more pairs, of opposing sides. The hammers are pivotally mount...
11/28/2006
6827677Rollers or cylinders with a metallic foam core
Rollers and cylinders that are useable in a rotary printing presses are made using hollow tubular casings having metallic foam cores. The casings and cores are made separately. The cores are then placed inside the casing and the two are secured in a force-transmitti...
12/07/2004
6684783Method for imaging a media sleeve on a computer-to-plate imaging machine
A computer-to-plate method and apparatus is described for imaging media sleeves by employing a laser-based imaging head in conjunction with a two stage mandrel comprising an expandable arbor and an intermediate sleeve. Most of the bulk of the mandrel is c...
02/03/2004
6666804Two stage clamping pinion
A pinion for mounting rolls thereupon for reducing rod or wire in a rolling mill wherein said pinion has a pair of hydraulic pressure chambers formed therein which cause a threaded plug in a cavity in said pinion to undergo lateral movement to expand the ...
12/23/2003
6546867Variable-diameter cylindrically-shaped body
A variable-diameter cylindrically-shaped body includes a plurality of first tapered elements and a plurality of second tapered elements interacting with the first tapered elements and movable axially with respect to the first tapered elements. The first a...
04/15/2003
6526795Expanding spline drive for high torque
An expanding hub assembly for a capstan drive for a steel mill comprising a modified spline having a large cylindrical surface area for mating with an installed mill roll. The cylindrical surface is interspersed with a series of evenly spaced shallow axia...
03/04/2003
6382837Device and method for holding a drum in a printer or copier
A device and a method for the holding of a drum in a printer or copier. A star-shaped spring intercepting the differing longitudinal expansions of photoconductor drum and a shaft is arranged between an outer ring bearing the drum and an inner ring....
05/07/2002
6123285Expandable fiber core insert
A device for mounting a roll of material that includes a fiber core around which the material is placed. The device includes a lightweight, polymeric collett that is inserted into the fiber core. The polymeric collett has a plurality of individual segment...
09/26/2000
6110093Variable diameter roller
The present invention is related to a roller having a mantle. The mantle is expandable in a radial direction to allow for changes in diameter of the roller. The mantle of tubular shape is provided with a pattern of openings along its circumference....
08/29/2000
6024838Calender for paper and the like
A calender for a sheet material, e.g., paper, having at least two treatment stations through which the sheet material passes in succession. To regulate a desired parameter of the sheet material, each treatment station may include a plurality of adjacently...
02/15/2000
5803235Idler roller conversion system with impact shell
A roller arrangement for use in a conveyance system includes a generally cylindrical roller body which has a pre-determined diameter, an outer surface, and a central passage. A shaft extends through the central passage, the roller body is rotatable about ...
09/08/1998
5583624Device for the releasable fastening of a fixing drum to bearing flanges of a fixing station in an electrophotographic printer or copier apparatus
A device for the releasable fastening of a fixing drum on a bearing flange of a fixing station in an electrophotographic printer or copier apparatus has a cone-shaped spreader element allocated to the bearing flange and also has a resiliently designed rec...
12/10/1996
5522785Infinitely variable diameter roller
A roller assembly for guiding webs and removing wrinkles includes an outer cylindrical surface that is supported on a shaft about which it can rotate. Portions of the outer diameter of the outer cylindrical surface can expand and contract radially using a...
06/04/1996
5313883Printing press with a dynamic expansion band adjusting mechanism
A self-locking mechanism (10) for selectively dynamically adjusting expansion bands (12) of a running cylinder (11) of a rotary printing press during rotation includes a cylindrical adjustment member (30, 72) with a diameter substantially the same as the ...
05/24/1994
5151737Photoconductive drum having expandable mount
A photoconductive drum has a flexible photoconductive loop and an expandable mount. The mount includes a shell with a slit allowing the shell to expand. A pair of wedges are moved toward each other on a shaft. Cam surfaces on the wedges push against chamf...
09/29/1992
5142758Transport roller for paper sheets
For the transport of widths or sheets of paper, a roller is disclosed which comprises a bushing (1), which is surrounded by an elastic cylindrical casing. The bushing has a coaxial bore into which a shaft (3) is pressed. The bore of the bushing (1), which...
09/01/1992
5141601Press roll with wedge clamp for the press-jacket edges
The press roll cooperates with a counter roll to form a press with a long nip for paper or board machines. The press roll has two end walls; a flexible jacket secured to the end walls; and support members for the end walls. The end walls have bearings for...
08/25/1992
5138923Rotary die cutter
A rotatable cylinder to which is secured a unitary sleeve having cutting lands for cutting and creasing sheet material such as paper and cardboard. The sleeve is secured to the cylinder to prevent relative movement during the cutting process....
08/18/1992
5109585Roll for a roll stand having an exchangeable roll ring and a divided roll body
Roll for a roll stand having an exchangeable roll ring and a divided roll body, the two parts of which each form a tensioning flange and are interconnected by a central tensile connection. An axial tensioning device is provided which comprises a threaded ...
05/05/1992
5098523Press roll with wedge clamp for the press jacket edges
The press roll cooperates with a counter roll to form a press with a long nip for paper or board machines. The press roll has two end walls; a flexible jacket secured to the end walls; and support members for the end walls. The end walls have bearings for...
03/24/1992
5027491Roller
A crusher roller having a pair of roll hubs mounted on a shaft. Each hub has an external taper on its radially outer surface and an annular recess in each end adjacent to the inner surface. A shrink disc with an internal taper on the inner surface is posi...
07/02/1991
4949445Fitted sleeve on a roller core
Disclosed is a process for fitting a cylindrical sleeve around a cylindrical core. The core is covered with a layer of compressible material. Upon mounting a pressurized medium is fed between the inner surface of the sleeve and the outer surface of the co...
08/21/1990
4941250Roller for pressure treatment of a continuous web of material
A hydraulically supported roller comprises a hollow cylinder that rotates about a stationary cross-head. Cylindrical recesses are radially disposed in the cross-head. Piston-like supporting plungers are displaceable in the recesses against the inner circu...
07/17/1990
4800644Method for fastening or loosening a clamp unit
The clamp apparatus transmits torque forces between a shaft and a hub. The clamp apparatus comprises conical rings, each having a conical surface together with a cylindrical inner or outer circumferential surface. The conical rings are drawn together by a...
01/31/1989
4787955Application roller for a labelling device
An application roller (212) for a labelling device for applying self-adhesive labels comprises a cylindrical inner sleeve (211). It further comprises a cylindrical outer sleeve (212) whose internal diameter is greater than the external diameter of the inn...
11/29/1988
4660268Rolling mill roll assembly
A rolling mill roll assembly having a cemented carbide work roll mounted on a tapered rolling mill arbor is described. The roll is held nonrotational with respect to the arbor by a split metallic ring member which is forced into pressurized abutment with ...
04/28/1987
4624184Annular expansible heads for a printing cylinder assembly
A printing cylinder is supported and located by dual annular hydraulically-expansible heads carried by a shaft and adjustable axially thereof and which are inserted into the printing cylinder and then expanded inwardly into locking engagement with the sha...
11/25/1986
4545425Mounting device
The present invention relates to a device for mounting an outer jacket (4) on a roller-shaped body (1, 2, 3) for forming an annular space (5) between the outer jacket (4) and the roller-shaped body (1, 2, 3). The basis of the present invention resides in ...
10/08/1985
4503769Metal coated thin wall plastic printing cylinder for rotogravure printing
A lightweight, thin walled, plural metal coated plastic sleeve for use in rotogravure or flexographic printing as well as a rotogravure printing cylinder are disclosed. The sleeve is supported internally and laterally by, for example, an expanding mandrel...
03/12/1985
4498527Heat-exchanging roller
A heat exchanging roller has an inner and an outer generally cylindrical casing with an annular space defined between them through which the heat exchanging medium passes. Sealing rings are disposed at the ends of the roller and bound the annular space. S...
02/12/1985
4448554Sheet feeding apparatus having an expansible periphery
An apparatus having a track for guiding a sheet therealong and means for feeding a sheet along the track. The feeding means includes a rotatable member having a shaft mounted for rotation, with the rotatable member having a driving periphery extending int...
05/15/1984
4441426Printing apparatus
Printing apparatus is disclosed comprising a rotatably mounted hub, a plurality of carriages circumferentially spaced around the hub, each carriage being adapted to support a printing blanket. Each carriage is movable with respect to the hub upon actuatio...
04/10/1984
4423541Rolling mill roll
A rolling mill roll having adjustable axial compliance is formed by a sleeve in the bore of which is located a stiffening arbor. The arbor is an interference fit with the bore of the sleeve over a limited central part of the roll but on each side of that ...
01/03/1984
4343011Facsimile apparatus
A facsimile system has improved features for receiving copy medium and for printing. The system has a cylindrical rotatably driven drum that has an expansion device that allows the drum to expand its effective diameter. When the unit is used as a receiver...
08/03/1982
4253392Hollow fuser roll with variable taper
An electrophotographic copier machine with a roll fuser where one of the mating rolls is comprised of a thin outer shell which takes a variable taper so that a concave shape is produced under high humidity conditions and a relatively straight roller is pr...
03/03/1981
4241659Sheet transfer apparatus for rotary printing machines having serially arranged printing stations
To permit reversal of sheets having extended length, a sheet storage or sheet transfer drum in engagement with a sheet reversal drum is formed with a sheet displacement apparatus located on the sheet storage drum rearwardly--with respect to the direction ...
12/30/1980
1    
 
Sign InRegister
Username  
Password   
forgot password?