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Class 451/505 - Hydraulically actuated


Subclass of Class 451 - Abrading
Definition: Tool support wherein expansion of the external surface is
No. of patents: 25
Last issue date: 06/26/2007


NumberTitleIssue Date
7235002Method and system for making glass sheets including grinding lateral edge(s) thereof
A method and system for making glass sheets is provided. At least one grinding wheel is provided for grinding a lateral edge of a glass sheet. An airbag and corresponding air pressure regulator are provided for biasing the grinding wheel against the lateral edge of ...
06/26/2007
7156727Web-format polishing pads and methods for manufacturing and using web-format polishing pads in mechanical and chemical-mechanical planarization of microelectronic substrates
A web-format polishing pad for mechanical and/or chemical-mechanical planarization of microelectronic substrate assemblies, and methods for making and using such a web-format pad. In one aspect of the invention, a web-format polishing pad for planarizing a microelec...
01/02/2007
7094191Press roll
A press roll is employed in the press section, calender section, etc., of a papermaking machine. The press roll includes a first tapered surface (11a) and a first clamping surface (12a). The first tapered surface (11a) is fo...
08/22/2006
7048617Method and apparatus for smoothing unfinished surfaces
An apparatus and method for smoothing unfinished surfaces is disclosed. A sanding head having a formed abrasive surface is secured to the mandrel of a rotational tool. A user is able to finish and smooth irregular and fanciful shapes cut into wood or plastic product...
05/23/2006
6913518Profile control platen
A platen for chemical mechanical polishing of a substrate includes a surface upon which a polishing pad can be placed, a support structure, and a controller. The surface has a first region and a second region and is operable to exert force against the polishing pad ...
07/05/2005
6685547Pneumatic sanding roll for flexible abrasive cloth sleeve
The pneumatic sanding roll has an elongate housing with an outside driving axle separated from an inside portion by a large diameter disc. An air supply channel extends in the housing from the driving axle to a mouth of the inside portion. A spacer is in ...
02/03/2004
6439967Microelectronic substrate assembly planarizing machines and methods of mechanical and chemical-mechanical planarization of microelectronic substrate assemblies
A plurality of planarizing machines for microelectronic substrate assemblies, and methods of mechanical and chemical-mechanical planarization of microelectronic substrate assemblies are disclosed. The planarizing machines for processing microelectronic su...
08/27/2002
6425808Honing tool
A honing tool has a large-diameter portion thereof provided with a plurality of stone holding recesses arranged radially from the inner bore to the outer edge for slidably holding grinding stones. Each stone holding recess is arranged to form an upper gui...
07/30/2002
6152814Expandable abrasive belt for use with inflatable tool
An expandable abrasive sleeve is used on an inflatable tool for abrading or finishing a surface of a workpiece. The inflatable tool includes an inflatable bladder clamped at first and second ends of a core having an elastomeric outer core portion. The inf...
11/28/2000
6083086Expanding device for grinding sleeves
The present invention is an expanding device for supporting grinding sleeves. The device has a cylindrical member with an outer surface, an interior chamber, an expanding chamber, and a locking mechanism. The outer surface receives the grinding sleeve and...
07/04/2000
5931719Method and apparatus for using pressure differentials through a polishing pad to improve performance in chemical mechanical polishing
Methods and apparatus for planarizing the surface of a semiconductor wafer by applying non-uniform pressure distributions to a polishing pad are disclosed. According to one aspect of the present invention, a chemical mechanical polishing apparatus for pol...
08/03/1999
5895311Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same
An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned ...
04/20/1999
5860851Polishing apparatus and polishing method using the same
A polishing apparatus and a polishing method using the apparatus in which an elastic portion is interposed between a polishing table and a polishing cloth, whereby the contacting state between the face of the polishing cloth and a face of a sample to be p...
01/19/1999
5800252Fluid-activated variable honing tools and method of using the same
An improved honing method and device connected to a source of pressurized fluid for machining a wall of a bore hole or similar interior of a workpiece. The honing device includes a tool mandrel connected in a cantilevered arrangement to a machine for rota...
09/01/1998
5762546Pneumatically assisted conformal tool for an ophthalmic lens finer/polisher
A conformal tool for fining/polishing ophthalmic lenses has a rigid base, a substantially air impervious elastic membrane and a bladder conformable to a surface of the lens to be fined/polished. The perimeters of the base, the membrane and the bladder are...
06/09/1998
5672096Inflatable tool
An inflatable tool is used for abrading or finishing a surface of a workpiece. The inflatable tool includes an inflatable bladder clamped at first and second ends of a core having an elastomeric outer core portion. The inflatable bladder is inflated by a ...
09/30/1997
5593345Abrasive-belt conversion wheel for cylindrical grinders
A conversion grinding wheel frame for an abrasive-belt to secure thereto for replacing a conventional stone grinding wheel used on a cylindrical roll grinding machine. The abrasive-belt conversion wheel is secured to a spindle of the grinding machine by a...
01/14/1997
5591073Method and apparatus for lapping sliders
A method and apparatus for lapping the air bearing surfaces of hard disk head sliders including the steps of installing a lapping plate charged with lapping abrasive onto a lapping contour plate, applying a negative pressure to a cavity of the lapping con...
01/07/1997
5554064Orbital motion chemical-mechanical polishing apparatus and method of fabrication
A method and apparatus for polishing a thin film formed on a semiconductor substrate. A table covered with a polishing pad is orbited about an axis. Slurry is fed through a plurality of spaced-apart holes formed through the polishing pad to uniformly dist...
09/10/1996
5351447Inflatable sanding drum
An inflatable sanding drum used for a drill or a lathe to said a wood has a cover between an abrasive member and a rubber bladder which defines an air chamber of the roller. Thus, even if the abrasive member is worn out by the friction with the wood surfa...
10/04/1994
5255474Polishing spindle
A polishing spindle is provided for use in a polishing device which includes a hollow spline shaft, and a polishing tool having a polishing member which defines a first bag-like elastic member and is attached in an airtight manner to a forward end of the ...
10/26/1993
5230184Distributed polishing head
A distributed polishing head assembly (17) has a flexible membrane (14), and a plurality of periodic polishing pads (12) that are attached to the flexible membrane (14). The polishing pads (12) are made from a flat semiconductor wafer that has been sawed ...
07/27/1993
5205083Method and apparatus for polishing optical lenses
A new and improved method and apparatus for polishing optical lenses using free-flowing polishing fluid (23) passing across a flexible permeable membrane (1). The free-flowing polishing fluid (23) forces the permeable membrane (5) to conform to the shapes...
04/27/1993
5134928Peeling rollers for vegetables
Peeling rollers for vegetables, particularly root crops each comprising an hourglass-shaped core roller having a recessed portion defined and an outer cylindrical elastomer member concentrically surrounding the core roller, thereby constituting a space en...
08/04/1992
4897968Inflatable grinding roller
An inflatable grinding roller is disclosed which comprises an elastic sleeve tightly fitted over a hollow cylindrical support of which the center is concave so that the sleeve and support together define an inflatable air chamber. The concave section furt...
02/06/1990
 
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