Matches 1 - 50 out of 88 1 2 >
Match Document Document Title
7559726 Drill plug ejection system  
A drill plug ejection system includes a drill and a drill bit coupled to the drill. The drill rotates the drill bit. A hole saw is mounted on the drill bit and includes a base wall and a perimeter...
7371034 Drilling attachment  
A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid...
7160064 Hole saw slug removal device  
The hole saw slug removal device is a device constructed to fit within a hole saw that provides for automatic ejection of waste slugs from within the hole saw. The hole saw slug removal device...
7001116 Workpiece removal device for a hole saw  
A workpiece removal device 10 for a hole saw 8 includes a positioning member 12 joined to the hole saw 8, a first securing member 14 joined to the positioning member 12, a biasing...
6857830 Roof core cutter  
A roof core-drilling apparatus and drilling guide adapted to be used in combination with a rotary drive means in which the mandrel portion of the roof core-cutter operates not only to mechanically...
6705807 Hole saw and connection method  
The hole saw assembly provides a structure and method for efficiently and securely connecting a hole saw to an arbor and easily connecting a pilot bit to the arbor. The arbor has a shank opposite...
6599063 Hole saw having efficient slug removal  
A hole saw having efficient slug removal includes a saw cup, a shank portion, and a location drill. A plurality of cutting teeth are formed on an open end of the saw cup and the shank portion is...
6409436 Plug ejecting hole saw with twist-locking interchangeable saw cups  
A plug ejecting hole saw includes a cylindrical saw cup provided with front cutting teeth, and an end wall having therethrough a non-circular concentric aperture; and an arbor holder removably...
5934845 Hole saw with modified pilot and plug biasing  
A hole saw includes a mandrel having a central pilot drill bit having a tapered shank to facilitate removal of the plug and an annular cutting saw blade. A helical spring is preferred coaxially...
5919010 Apparatus for forming inspection openings in asbestos insulation cladding  
An evacuated enclosure is provided around a circular cutter to collect the cutting dust produced while forming inspection apertures in insulation cladding. The enclosure includes an upper and lower...
5816752 Knock out device  
A slug removal system for a hole saw including a spring and a knock-out device are disclosed. The knock-out device has a bore longitudinally through its center to allow a drill bit, which acts as a...
5813802 Drilling tool assembly and its center drill and cup shape drill  
A center drill used for machining a hole in a work piece which is adapted to be partially enclosed in a cup shape drill member in a side view thereof, includes a drill portion provided on a leading...
5715735 Workpiece ejector  
A workpiece ejector has an air actuator mounted within a lathe spindle for rotation therewith. The ejector actuator is controlled to extend its piston and piston rod to eject a workpiece from the...
5632577 Drill for drilling rails and track rigs for railroad applications  
Drill for drilling rails and track rigs, in railroad applications, including a body which supports a motor driving a drilling tool through a reduction unit. Elements are provided for the...
5435672 Hole saw having plug ejection feature  
A hole saw having plug ejection feature. Using the arbor and arbor nut of the present invention, the arbor of an ordinary commercially available hole saw is replaced, the arbor nut of the present...
5226762 Sealed hole-saw arbor  
A sealed, quick-disconnect, hole-saw arbor is disclosed for affixing a hole saw to a drill. The arbor enables a standard hole saw to be firmly "snugged up" to a shoulder on the arbor, and then...
5141368 Automated side-drilled device and method for catheters  
A device and method are provided for side-drilling of catheters. The method comprises storing side-drilling hole patterns, selecting a side-drilling hole pattern, positioning the catheter at...
5096341 Hole saw and drive  
A hole saw and drive includes a cup-shaped saw body having a closed end and a plurality of cutting teeth. A left-hand threaded collar is secured to the closed end and defines one or more drive tabs...
5087156 Printed circuit board boring machine  
A printed circuit board boring machine bores printed circuit boards stacked on a table, by a drill while pressing the printed circuit boards with a pressure foot. A piece having a hole through...
5082403 Core-drilling apparatus with mandrel driver-ejector  
In one embodiment, the bodies of the mandrel and the drill have radially opposing portions thereof which are threadedly engaged about the axis of the drill. Through bores in the respective body...
5076741 Plug ejecting holesaw  
The subject holesaw is similar to conventional holesaws. However, it has no shoulder stop on the mandrel and extended threads on the mandrel so that after a hole is cut the clutch is moved well...
5046301 Asbestos bulk extractor and method therefor  
The asbestos bulk extractor includes, in a preferred embodiment, an elongated housing having a handle section normal thereto. The housing defines an interior chamber and the handle defines a...
5036574 Multiple piercing apparatus and method  
A multiple piercing apparatus for piercing a workpiece having a plurality of reference marks defining the piercing locations. A plurality of adjustably movable piercing unit cases are opposedly...
5035548 Hole saw driver and extruder  
A flanged irregular bushing is fitted through a corresponding irregular hole in the base of a conventional hole saw and supports a cylindrical shank which extends from the back of the hole saw....
5017057 Apparatus for drilling a circularly curved bore  
An apparatus for drilling a circularly curved hole in a workpiece, following a curved path around an arc includes a support, shaped to rest against the workpiece, a chassis mounted to the support...
4913599 Drill for flexographic plates and negatives  
A drill (10) for flexographic plates and negatives includes a table (15) movable in a Y direction under a drill bar (30), and a pin bar (25) movable in an X direction on the table so that negatives...
4909681 Router for component mounted printed circuit boards  
A router for separating individual component mounted printed circuit boards from a panel consists of a routing machine and programmed control console which controls movement of a spindle assemblage...
4887413 Bulk sampler tool  
A tool for sampling building materials for the suspected presence of asbestos fibers. An annular (tubular) cutter element is rotated to remove a plug-like sample from a wall under study. A...
4778315 Chip removal and tool lubricating device and method  
A device and method for removing chips generated by a tool operating on a workpiece using air, and for lubricating the tool using a fluid lubricant are proposed. The device includes a manifold...
4755088 Hole saw unjamming tool  
A tool for unjamming the material jammed in a hole saw includes an adapter member constructed to be received within the interior of a cup-shaped cutter and providing at one end an enlarged head for...
4755087 Hole saw plug ejector  
An improved hole saw mandrel for use in a power drill or the like comprising an ejector mechanism which allows the operator to eject the plug that remains bound within the confines of the hole saw...
4749314 Sheet material drilling apparatus  
An apparatus for drilling sheet material comprises a reciprocating subframe which rotatably supports an annular drill and pressing means. The pressing means holds the material down during drilling...
4711609 Drill tool  
A drilling tool for one of stationary and mobile use as, for example, a hand tool, and especially a motor powered tool capable of rotary drilling, percussion drilling, or hammer drilling for...
4669928 Hole saw mandrel  
A hole saw accessory device that is used with a conventional drill chuck. The device includes a mandrel assembly that includes a tubular member and a locking assembly slidably mounted thereon. The...
4657445 Core drill and method of removing a core therefrom  
Disclosed is an improved core drill and a method of detachably coupling the same to a power driving unit to expedite the removal of a core therefrom. This is achieved by equipping the rear end of...
4652185 Hole saws  
A device for removing waste plugs from hole saws comprising a plug member positioned internally of a hole saw and retained therein by means of screws or other projections which extend outwardly...
4640187 Food coring device  
An apparatus for forming longitudinally extending bores in food products includes a hollow circular coring knife having a cutting edge formed at a terminal end thereof. Another end of the knife is...
4624608 Pilot pin-locking device in drilling machines  
A pilot pin-locking means for a drilling machine including a drilling tool, a hollow shaft for supporting the drilling tool and provided with a lubricating means, a bearing means mounted on the...
4610579 Core drill bit with dynamic cooling fluid flow control means  
A bit for a core drill of the type for drilling a chamfered hole in an article has a dynamic cooling fluid flow directing element for cooling the bit and article surfaces during drilling and...
4607556 Coupon cutting machine  
An apparatus is described for cutting coupons from plastic webs. This apparatus includes a circular cutting blade movable into and out of engagement with a cutting surface. The blade and cutting...
4596500 Drilling method and relevant drilling machine for stacked boards, particularly for printed circuits  
To reduce dead times and waste of dummy boards necessary for preparing individual packages of stacked boards to be drilled, the latter are loaded on the table in a single stack and are drilled from...
4583256 Tool for connecting a tube to a local junction box  
A tool for making a plug connection between a plastic tube and a plastic case for electrical conductors has a cutting head which is designed to encircle the shell of a tube and which can be turned...
4555203 Drilling machine  
A drilling machine including a spindle and an elevating hollow shaft rotatable in unison with the spindle. An annular cutter is mounted in axial alignment with the hollow shaft and an elevating...
4523360 Piece-holder table revolving intermittently in machine tools  
A table (1) revolving intermittently and carrying on its periphery piece-holder grips, has central openings (11), which make possible the discharge of working shavings and wastes at the center of...
4406334 Drilling tool  
A drilling tool has a drilling shaft member, a crown drilling member with an annular wall provided with a plurality of cutting edges and detachably mounted on the shaft member, a center drilling...
4385853 Arbor for rotary cutting tool  
An arbor for a rotary cutting tool which includes an elongated cylindrical shank that has an axial bore formed therethrough. The upper end of the shank is adapted to be attached to the drive...
4204783 Machine for cutting holes with annular cutters  
There is disclosed an air motor adapted to rotate and axially shift an arbor having an annular cutter attached thereto. Within the arbor a plunger is slideably arranged with its leading end bearing...
4193721 Arbor for annular hole cutter  
An arbor for an annular hole cutter wherein a resiliently compressible sleeve is connected to a central pilot pin in the cutter and is expanded radially into tight frictional contact with the bore...
4119114 Fluid transfer apparatus  
Apparatus for transferring toxic fluid material from a container having a closure means toward another closed location comprising conduit means and a probe member to provide a closed fluid transfer...
4097176 Particle-aspirating accessory for a hammer drill  
A hammer drill is provided with an accessory that is rotatably supported on the chuck of the drill and has a handle fixed to the support rotatable on the drill chuck. Structure is provided forming...
Matches 1 - 50 out of 88 1 2 >