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| Number | Title | Issue Date |
| 7001121 | Method of trimming bore liners A trimmer is provided for trimming a newly-installed sleeve liner after the liner is positioned in a cylinder bore of a combustion engine component. The trimmer includes a trimming cutter adapted to shave off a protruding end of the newly-installed sleeve liner, and... | 02/21/2006 |
| 6735863 | Method of engine cylinder bore enlargement A method is provided for forming enlarged cylinder bores in an engine based on a family of internal combustion engines having an original cylinder bore axis for each bore, wherein each cylinder bore is constrained against enlargement toward one side. The method incl... | 05/18/2004 |
| 6729811 | Cutter tool for bore liners A trimmer is provided for trimming a newly-installed sleeve liner after the liner is positioned in a cylinder bore of a combustion engine component. The trimmer includes a trimming cutter adapted to shave off a protruding end of the newly-installed sleeve liner, and... | 05/04/2004 |
| 6176650 | Apparatus and method for cutting a bore including automatic system for retracting the cutting tool An apparatus for cutting a bore in a device includes a boring assembly having a cutting device coupled to a housing. A control system selectively floats the housing above a mounting surface, thereby allowing the housing and associated cutting device to be... | 01/23/2001 |
| 4943236 | Asymmetrical bone drill A drill for forming a hole in material has a shank with at least a base surface positioned at an angle to a longitudinal axis of the shank and a side surface. A cutting element having first and second ends is eccentrically connected to the base surface in... | 07/24/1990 |
| 4871285 | Cylinder boring apparatus and method Apparatus is provided for re-boring the cylinder of a single cylinder engine. The apparatus comprises upper and lower alignment components accurately positionable upon the axis of the cylinder by interaction with fixed features of the engine. The alignmen... | 10/03/1989 |
| 4850756 | Portable align boring machine A self-centering and aligning attachment assembly for attaching a portable align boring machine to a workpiece or associated support for machining a bore in the workpiece includes first and second attachment sub-assemblies. The a first attachment sub-asse... | 07/25/1989 |
| 4847961 | Method and apparatus for stitch-machining deep cavities in metal workpieces Stitch-machining the walls of a cylindrical blind cavity of a workpiece, the cavity being deep and narrow with respect to the axis of the cavity, is carried out by: (a) supporting a tubular housing for axial movement throughout substantially the axial ext... | 07/18/1989 |
| 4792265 | Engine boring and surfacing machine A surfacing and boring machine for reconditioning engine blocks has a front stationary work table, a traveling column on rails provided by an elongated rigid base, a power head unit on the column adjustable in an air float condition to move an overhanging... | 12/20/1988 |
| 4789275 | Boring stand A boring stand for supporting engine blocks or cylinders which are to be bored that has a moveable platform which is slidably mounted on a vertical upright of a stand and has polyethylene wear plates engageable with a vertical upright. The moveable platfo... | 12/06/1988 |
| 4625465 | Hone stop assembly A hone stop assembly for use with a honing tool in reconditioning the cylinder bores of an internal combustion engine block. The assembly includes a frame mountable to an engine block, a disk-shaped hone stop, and suitable adjustable connections from the ... | 12/02/1986 |
| 4622873 | Semi-automatic valve tool An apparatus for performing various machining operations on the interior surface areas of a large steam valve or the like which includes a value seat ring with a valve seat thereon secured to a valve seat ring step interiorly of the valve body. The appara... | 11/18/1986 |
| 4580931 | In-situ machine for refurbishing a bore in a workpiece An in situ machine is provided for refurbishing a bore in a workpiece. The achine includes a shaft which is adapted to be fixed to the workpiece in axial alignment therewith. A tubular boring element is concentrically mounted for rotation about the fixed s... | 04/08/1986 |
| 4557640 | Combination boring and honing apparatus and method A boring unit and a honing unit are concurrently carried on the bed of a boring machine for performing boring and honing operations on the cylinder bores of an engine block. A unique clamping technique is employed to clamp the engine block to the bed of t... | 12/10/1985 |
| 4551947 | Device for honing workpieces A device for honing workpieces. The device includes a rotatable and axially reciprocating honing tool which is guided by an upper and a lower end section in corresponding bearings of a workholding fixture, and also includes a drive rod between the honing ... | 11/12/1985 |
| 4544308 | Boring head centering apparatus A boring head centering device which can be operator activated to center a boring head within a cylinder. Centering fingers extend radially from a boring head to center the boring head. The centering fingers are retracted to permit unobstructed boring wit... | 10/01/1985 |
| 4483755 | Method for the treatment of surfaces of a workpiece of carbon-containing cast iron The invention relates to a method and an apparatus for the treatment of surfaces of a workpiece of carbon-containing cast iron, and in particular of blind holes in gray iron cast workpieces, by electrochemical stock removal and mechanical reaming-and-plat... | 11/20/1984 |
| 4414869 | Counterbore boring and refacing tool A tool for machining or repairing a worn counterbore in the cylinder block is provided with a feed control device. The refacing tool has a base structure which is attachable to the engine block. A shaft is rotatably and slidably mounted in the base struct... | 11/15/1983 |
| 4414723 | Adjustable cylinder head holder Apparatus for reworking the valve guides of a cylinder head is disclosed. The apparatus includes an adjustable cylinder head holder including a base, a pedestal and a heat support subassembly permitting positioning of the head rotationally about its longi... | 11/15/1983 |
| 4365917 | Work-holding device An adjustable guide for a tool holder for use in high precision machining which includes a housing, a guide seat located within the housing and a guide element movable with respect to the housing. A casing is disposed in the housing and positioned between... | 12/28/1982 |
| 4358229 | Cylinder boring machine stand An apparatus facilitates the support and positioning of an engine block for the purpose of boring the cylinders thereof and the support and positioning of the boring machine used simplifies the operation and permits it to be performed with greater ease, s... | 11/09/1982 |
| 4234275 | Method and apparatus for mounting an engine block boring machine A method and apparatus for positioning a boring machine relative to an engine block or the like has a base plate suitable for arrangement upon a deck surface of the block, the plate being formed with openings above each of the cylindrical bores as well as... | 11/18/1980 |
| 4127942 | Method and apparatus for reconditioning cylinder heads An apparatus and method for reconditioning cylinder heads and more particularly for permitting proper, quick, and easy alignment of the cylinder head relative to a machine for drilling and reaming valve guides for reconditioning the valve guides in the he... | 12/05/1978 |
| 3994613 | Device for positioning cutters in an annular cutter holder A device for setting cutters in the periphery of an annular cutter holder to a plurality of selected radii, said device including a base for rotatably supporting the cutter holder and an adjustable gauge mounted on said base which may be selectively posit... | 11/30/1976 |
| 3977805 | Tool bar holder Apparatus for use in reconditioning engines by reworking or replacing the valve guides and seats thereof, which obviates any need for meticulously positioning a toolholder individually for each valve location. A toolholder bar has one end cross-bored to r... | 08/31/1976 |
